diff --git a/apps/desktop/src/components/diff/DiffHunkBuilder.ts b/apps/desktop/src/components/diff/DiffHunkBuilder.ts
new file mode 100644
index 000000000..3aed892e5
--- /dev/null
+++ b/apps/desktop/src/components/diff/DiffHunkBuilder.ts
@@ -0,0 +1,297 @@
+import { diffLines, type Change } from "diff";
+
+export type HunkType = "equal" | "delete" | "insert" | "modify";
+
+export interface DiffLine {
+  type: HunkType;
+  content: string;
+  lineNumber: number | null;
+  isPadding: boolean;
+}
+
+export interface DiffHunk {
+  id: string;
+  type: HunkType;
+  leftLines: DiffLine[];
+  rightLines: DiffLine[];
+  // Measured pixel positions after rendering
+  leftTop: number;
+  leftBottom: number;
+  rightTop: number;
+  rightBottom: number;
+}
+
+const SIMILARITY_THRESHOLD = 0.3;
+const ALIGN_WINDOW = 3;
+
+function splitLines(value: string): string[] {
+  const lines = value.split("\n");
+  if (lines.length > 0 && lines[lines.length - 1] === "") lines.pop();
+  return lines;
+}
+
+function buildLines(lines: string[], type: HunkType, startLineNum: number): DiffLine[] {
+  return lines.map((content, idx) => ({
+    type,
+    content,
+    lineNumber: startLineNum + idx,
+    isPadding: false,
+  }));
+}
+
+function buildPaddingLines(count: number): DiffLine[] {
+  return Array.from({ length: count }, () => ({
+    type: "equal" as HunkType,
+    content: "",
+    lineNumber: null,
+    isPadding: true,
+  }));
+}
+
+function normalizeDdl(ddl: string): string {
+  return ddl
+    .replace(/\r\n/g, "\n")
+    .replace(/\r/g, "\n")
+    .split("\n")
+    .map((line) => line.replace(/[ \t]+$/g, ""))
+    .join("\n");
+}
+
+function collectSameKindChanges(changes: Change[], startIdx: number, kind: "added" | "removed"): [string[], number] {
+  const parts: string[] = [];
+  let i = startIdx;
+  while (i < changes.length && changes[i][kind]) {
+    parts.push(changes[i].value);
+    i++;
+  }
+  return [parts, i];
+}
+
+function levenshteinDistance(a: string, b: string): number {
+  const matrix: number[][] = [];
+  for (let i = 0; i <= b.length; i++) matrix[i] = [i];
+  for (let j = 0; j <= a.length; j++) matrix[0][j] = j;
+  for (let i = 1; i <= b.length; i++) {
+    for (let j = 1; j <= a.length; j++) {
+      matrix[i][j] = b.charAt(i - 1) === a.charAt(j - 1) ? matrix[i - 1][j - 1] : Math.min(matrix[i - 1][j - 1] + 1, matrix[i][j - 1] + 1, matrix[i - 1][j] + 1);
+    }
+  }
+  return matrix[b.length][a.length];
+}
+
+function computeSimilarity(a: string, b: string): number {
+  if (a === b) return 1;
+  const longer = a.length > b.length ? a : b;
+  if (longer.length === 0) return 1;
+  const distance = levenshteinDistance(a, b);
+  return (longer.length - distance) / longer.length;
+}
+
+type AlignedItem = { type: "modify"; left: string; right: string } | { type: "delete"; left: string } | { type: "insert"; right: string };
+
+function alignLineByLine(removedLines: string[], addedLines: string[]): AlignedItem[] {
+  const result: AlignedItem[] = [];
+  let r = 0;
+  let a = 0;
+
+  while (r < removedLines.length || a < addedLines.length) {
+    if (r < removedLines.length && a < addedLines.length) {
+      const directSim = computeSimilarity(removedLines[r], addedLines[a]);
+      if (directSim >= SIMILARITY_THRESHOLD) {
+        result.push({ type: "modify", left: removedLines[r], right: addedLines[a] });
+        r++;
+        a++;
+        continue;
+      }
+
+      // Look ahead for best match within a small window
+      let bestR = -1;
+      let bestA = -1;
+      let bestSim = SIMILARITY_THRESHOLD;
+
+      for (let ri = r; ri < Math.min(r + ALIGN_WINDOW, removedLines.length); ri++) {
+        for (let aj = a; aj < Math.min(a + ALIGN_WINDOW, addedLines.length); aj++) {
+          const sim = computeSimilarity(removedLines[ri], addedLines[aj]);
+          if (sim > bestSim) {
+            bestSim = sim;
+            bestR = ri;
+            bestA = aj;
+          }
+        }
+      }
+
+      if (bestR >= 0 && bestA >= 0) {
+        while (r < bestR) {
+          result.push({ type: "delete", left: removedLines[r] });
+          r++;
+        }
+        while (a < bestA) {
+          result.push({ type: "insert", right: addedLines[a] });
+          a++;
+        }
+        result.push({ type: "modify", left: removedLines[r], right: addedLines[a] });
+        r++;
+        a++;
+      } else {
+        result.push({ type: "delete", left: removedLines[r] });
+        result.push({ type: "insert", right: addedLines[a] });
+        r++;
+        a++;
+      }
+    } else if (r < removedLines.length) {
+      result.push({ type: "delete", left: removedLines[r] });
+      r++;
+    } else {
+      result.push({ type: "insert", right: addedLines[a] });
+      a++;
+    }
+  }
+
+  return result;
+}
+
+export function buildHunks(sourceDdl: string, targetDdl: string): DiffHunk[] {
+  const normalizedSource = normalizeDdl(sourceDdl);
+  const normalizedTarget = normalizeDdl(targetDdl);
+  const changes = diffLines(normalizedSource, normalizedTarget, { newlineIsToken: false });
+
+  const hunks: DiffHunk[] = [];
+  let leftLineNum = 1;
+  let rightLineNum = 1;
+  let hunkIdCounter = 0;
+
+  function nextId(): string {
+    return `hunk-${hunkIdCounter++}`;
+  }
+
+  let i = 0;
+  while (i < changes.length) {
+    const change = changes[i];
+
+    if (!change.added && !change.removed) {
+      const lines = splitLines(change.value);
+      hunks.push({
+        id: nextId(),
+        type: "equal",
+        leftLines: buildLines(lines, "equal", leftLineNum),
+        rightLines: buildLines(lines, "equal", rightLineNum),
+        leftTop: 0,
+        leftBottom: 0,
+        rightTop: 0,
+        rightBottom: 0,
+      });
+      leftLineNum += lines.length;
+      rightLineNum += lines.length;
+      i++;
+      continue;
+    }
+
+    if (change.removed) {
+      const [removedParts, afterRemoved] = collectSameKindChanges(changes, i, "removed");
+      const [addedParts, afterAdded] = collectSameKindChanges(changes, afterRemoved, "added");
+      const removedValue = removedParts.join("");
+      const removedLines = splitLines(removedValue);
+
+      if (addedParts.length > 0) {
+        const addedValue = addedParts.join("");
+        const addedLines = splitLines(addedValue);
+        const aligned = alignLineByLine(removedLines, addedLines);
+
+        for (const item of aligned) {
+          if (item.type === "modify") {
+            const maxLines = 1;
+            const leftReal = buildLines([item.left], "modify", leftLineNum);
+            const rightReal = buildLines([item.right], "modify", rightLineNum);
+            leftLineNum++;
+            rightLineNum++;
+            hunks.push({
+              id: nextId(),
+              type: "modify",
+              leftLines: padLines(leftReal, maxLines, "modify"),
+              rightLines: padLines(rightReal, maxLines, "modify"),
+              leftTop: 0,
+              leftBottom: 0,
+              rightTop: 0,
+              rightBottom: 0,
+            });
+          } else if (item.type === "delete") {
+            const leftReal = buildLines([item.left], "delete", leftLineNum);
+            leftLineNum++;
+            hunks.push({
+              id: nextId(),
+              type: "delete",
+              leftLines: leftReal,
+              rightLines: buildPaddingLines(1),
+              leftTop: 0,
+              leftBottom: 0,
+              rightTop: 0,
+              rightBottom: 0,
+            });
+          } else if (item.type === "insert") {
+            const rightReal = buildLines([item.right], "insert", rightLineNum);
+            rightLineNum++;
+            hunks.push({
+              id: nextId(),
+              type: "insert",
+              leftLines: buildPaddingLines(1),
+              rightLines: rightReal,
+              leftTop: 0,
+              leftBottom: 0,
+              rightTop: 0,
+              rightBottom: 0,
+            });
+          }
+        }
+      } else {
+        const maxLines = removedLines.length;
+        const leftReal = buildLines(removedLines, "delete", leftLineNum);
+        leftLineNum += removedLines.length;
+        hunks.push({
+          id: nextId(),
+          type: "delete",
+          leftLines: leftReal,
+          rightLines: buildPaddingLines(maxLines),
+          leftTop: 0,
+          leftBottom: 0,
+          rightTop: 0,
+          rightBottom: 0,
+        });
+      }
+      i = afterAdded;
+      continue;
+    }
+
+    if (change.added) {
+      const [addedParts, afterAdded] = collectSameKindChanges(changes, i, "added");
+      const addedValue = addedParts.join("");
+      const addedLines = splitLines(addedValue);
+      const rightReal = buildLines(addedLines, "insert", rightLineNum);
+      rightLineNum += addedLines.length;
+      hunks.push({
+        id: nextId(),
+        type: "insert",
+        leftLines: buildPaddingLines(addedLines.length),
+        rightLines: rightReal,
+        leftTop: 0,
+        leftBottom: 0,
+        rightTop: 0,
+        rightBottom: 0,
+      });
+      i = afterAdded;
+      continue;
+    }
+  }
+
+  return hunks;
+}
+
+function padLines(lines: DiffLine[], targetCount: number, type: HunkType): DiffLine[] {
+  if (lines.length >= targetCount) return lines;
+  const padding = Array.from({ length: targetCount - lines.length }, () => ({
+    type,
+    content: "",
+    lineNumber: null,
+    isPadding: true,
+  }));
+  return [...lines, ...padding];
+}
diff --git a/apps/desktop/src/components/diff/DiffSvgConnector.vue b/apps/desktop/src/components/diff/DiffSvgConnector.vue
new file mode 100644
index 000000000..f31caa7b1
--- /dev/null
+++ b/apps/desktop/src/components/diff/DiffSvgConnector.vue
@@ -0,0 +1,40 @@
+<script setup lang="ts">
+import { computed } from "vue";
+import type { DiffHunk } from "@/components/diff/DiffHunkBuilder";
+
+const props = defineProps<{
+  hunks: DiffHunk[];
+  containerWidth: number;
+  containerHeight: number;
+}>();
+
+const connectionPaths = computed(() => {
+  const paths: { d: string; stroke: string; id: string }[] = [];
+  const midX = props.containerWidth / 2;
+  const halfLine = 10;
+
+  for (const hunk of props.hunks) {
+    // Only draw short connectors for modify hunks
+    if (hunk.type !== "modify") continue;
+    if (hunk.leftBottom <= hunk.leftTop || hunk.rightBottom <= hunk.rightTop) continue;
+    if (hunk.leftBottom < 0 || hunk.rightBottom < 0) continue;
+    if (hunk.leftTop > props.containerHeight || hunk.rightTop > props.containerHeight) continue;
+
+    const leftY = (hunk.leftTop + hunk.leftBottom) / 2;
+    const rightY = (hunk.rightTop + hunk.rightBottom) / 2;
+
+    paths.push({
+      id: hunk.id,
+      d: `M ${midX - halfLine},${leftY} L ${midX + halfLine},${rightY}`,
+      stroke: "rgba(234, 179, 8, 0.6)",
+    });
+  }
+  return paths;
+});
+</script>
+
+<template>
+  <svg class="absolute inset-0 pointer-events-none z-10" :width="containerWidth" :height="containerHeight" xmlns="http://www.w3.org/2000/svg">
+    <path v-for="path in connectionPaths" :key="path.id" :d="path.d" :stroke="path.stroke" fill="none" stroke-width="2" />
+  </svg>
+</template>
diff --git a/apps/desktop/src/components/diff/SchemaDiffConfigSelector.vue b/apps/desktop/src/components/diff/SchemaDiffConfigSelector.vue
new file mode 100644
index 000000000..6370573e8
--- /dev/null
+++ b/apps/desktop/src/components/diff/SchemaDiffConfigSelector.vue
@@ -0,0 +1,201 @@
+<script setup lang="ts">
+import { ref, computed } from "vue";
+import { useI18n } from "vue-i18n";
+import { Button } from "@/components/ui/button";
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
+import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogFooter } from "@/components/ui/dialog";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import { Download, Upload, Plus, Trash2, Copy, FileDown } from "@lucide/vue";
+import type { SchemaDiffConfig } from "@/types/schemaDiff";
+
+const props = defineProps<{
+  configs: SchemaDiffConfig[];
+  activeConfigId: string;
+}>();
+
+const emit = defineEmits<{
+  (e: "update:activeConfigId", id: string): void;
+  (e: "create", name: string): void;
+  (e: "rename", id: string, name: string): void;
+  (e: "delete", id: string): void;
+  (e: "duplicate", id: string): void;
+  (e: "export", config: SchemaDiffConfig): void;
+  (e: "exportAll", configs: SchemaDiffConfig[]): void;
+  (e: "import", jsonText: string): void;
+}>();
+
+const { t } = useI18n();
+
+const renameDialogOpen = ref(false);
+const renameValue = ref("");
+const renamingId = ref("");
+
+const importDialogOpen = ref(false);
+const importValue = ref("");
+const importError = ref("");
+
+function onSelectChange(value: unknown) {
+  emit("update:activeConfigId", String(value));
+}
+
+function startRename(config: SchemaDiffConfig) {
+  renamingId.value = config.id;
+  renameValue.value = config.name;
+  renameDialogOpen.value = true;
+}
+
+function confirmRename() {
+  if (renamingId.value && renameValue.value.trim()) {
+    emit("rename", renamingId.value, renameValue.value.trim());
+  }
+  renameDialogOpen.value = false;
+}
+
+function handleCreate() {
+  const baseName = t("schemaDiff.newConfigName");
+  let name = baseName;
+  let counter = 1;
+  while (props.configs.some((c) => c.name === name)) {
+    counter++;
+    name = `${baseName} ${counter}`;
+  }
+  emit("create", name);
+}
+
+function handleImport() {
+  importError.value = "";
+  try {
+    JSON.parse(importValue.value);
+    emit("import", importValue.value);
+    importDialogOpen.value = false;
+    importValue.value = "";
+  } catch {
+    importError.value = t("schemaDiff.importInvalidJson");
+  }
+}
+
+function downloadJson(data: string, filename: string) {
+  const blob = new Blob([data], { type: "application/json" });
+  const url = URL.createObjectURL(blob);
+  const a = document.createElement("a");
+  a.href = url;
+  a.download = filename;
+  a.click();
+  URL.revokeObjectURL(url);
+}
+
+function onExport() {
+  const config = props.configs.find((c) => c.id === props.activeConfigId);
+  if (config) {
+    emit("export", config);
+    downloadJson(JSON.stringify(config, null, 2), `dbx-schema-diff-${config.name}.json`);
+  }
+}
+
+function onExportAll() {
+  emit("exportAll", props.configs);
+  downloadJson(JSON.stringify(props.configs, null, 2), "dbx-schema-diff-configs.json");
+}
+
+async function onImportFile(event: Event) {
+  const input = event.target as HTMLInputElement;
+  const file = input.files?.[0];
+  if (!file) return;
+  try {
+    const text = await file.text();
+    JSON.parse(text);
+    emit("import", text);
+    importDialogOpen.value = false;
+  } catch {
+    importError.value = t("schemaDiff.importInvalidJson");
+  }
+  input.value = "";
+}
+
+const activeConfig = computed(() => props.configs.find((c) => c.id === props.activeConfigId));
+</script>
+
+<template>
+  <div class="flex items-center gap-2">
+    <Select :model-value="activeConfigId" @update:model-value="onSelectChange">
+      <SelectTrigger class="h-8 text-sm min-w-[180px]">
+        <SelectValue :placeholder="t('schemaDiff.selectConfig')" />
+      </SelectTrigger>
+      <SelectContent>
+        <SelectItem v-for="config in configs" :key="config.id" :value="config.id">
+          {{ config.name }}
+        </SelectItem>
+      </SelectContent>
+    </Select>
+
+    <Button variant="outline" size="icon" class="h-8 w-8" :title="t('schemaDiff.newConfig')" @click="handleCreate">
+      <Plus class="h-4 w-4" />
+    </Button>
+
+    <Button v-if="activeConfig" variant="outline" size="icon" class="h-8 w-8" :title="t('schemaDiff.renameConfig')" @click="startRename(activeConfig)">
+      <Copy class="h-4 w-4" />
+    </Button>
+
+    <Button v-if="activeConfig" variant="outline" size="icon" class="h-8 w-8" :title="t('schemaDiff.duplicateConfig')" @click="emit('duplicate', activeConfig.id)">
+      <FileDown class="h-4 w-4" />
+    </Button>
+
+    <Button v-if="activeConfig && configs.length > 1" variant="outline" size="icon" class="h-8 w-8" :title="t('schemaDiff.deleteConfig')" @click="activeConfig && emit('delete', activeConfig.id)">
+      <Trash2 class="h-4 w-4" />
+    </Button>
+
+    <Button variant="outline" size="icon" class="h-8 w-8" :title="t('schemaDiff.exportConfig')" @click="onExport">
+      <Download class="h-4 w-4" />
+    </Button>
+
+    <Button variant="outline" size="icon" class="h-8 w-8" :title="t('schemaDiff.importConfig')" @click="importDialogOpen = true">
+      <Upload class="h-4 w-4" />
+    </Button>
+
+    <Button variant="outline" size="icon" class="h-8 w-8" :title="t('schemaDiff.exportAllConfigs')" @click="onExportAll">
+      <FileDown class="h-4 w-4" />
+    </Button>
+
+    <!-- Rename Dialog -->
+    <Dialog v-model:open="renameDialogOpen">
+      <DialogContent class="sm:max-w-[400px]">
+        <DialogHeader>
+          <DialogTitle>{{ t("schemaDiff.renameConfig") }}</DialogTitle>
+        </DialogHeader>
+        <div class="py-4">
+          <Label class="text-sm">{{ t("schemaDiff.configName") }}</Label>
+          <Input v-model="renameValue" class="mt-2" @keydown.enter="confirmRename" />
+        </div>
+        <DialogFooter>
+          <Button variant="outline" @click="renameDialogOpen = false">{{ t("common.cancel") }}</Button>
+          <Button @click="confirmRename">{{ t("common.save") }}</Button>
+        </DialogFooter>
+      </DialogContent>
+    </Dialog>
+
+    <!-- Import Dialog -->
+    <Dialog v-model:open="importDialogOpen">
+      <DialogContent class="sm:max-w-[500px]">
+        <DialogHeader>
+          <DialogTitle>{{ t("schemaDiff.importConfig") }}</DialogTitle>
+        </DialogHeader>
+        <div class="py-4 space-y-4">
+          <div>
+            <Label class="text-sm">{{ t("schemaDiff.importFromFile") }}</Label>
+            <Input type="file" accept=".json" class="mt-2" @change="onImportFile" />
+          </div>
+          <div>
+            <Label class="text-sm">{{ t("schemaDiff.importFromText") }}</Label>
+            <textarea v-model="importValue" class="mt-2 w-full min-h-[120px] rounded-md border border-input bg-background px-3 py-2 text-sm" :placeholder="t('schemaDiff.importPlaceholder')" />
+          </div>
+          <p v-if="importError" class="text-sm text-destructive">{{ importError }}</p>
+        </div>
+        <DialogFooter>
+          <Button variant="outline" @click="importDialogOpen = false">{{ t("common.cancel") }}</Button>
+          <Button @click="handleImport">{{ t("common.import") }}</Button>
+        </DialogFooter>
+      </DialogContent>
+    </Dialog>
+  </div>
+</template>
diff --git a/apps/desktop/src/components/diff/SchemaDiffConfigStep.vue b/apps/desktop/src/components/diff/SchemaDiffConfigStep.vue
new file mode 100644
index 000000000..46bd2f294
--- /dev/null
+++ b/apps/desktop/src/components/diff/SchemaDiffConfigStep.vue
@@ -0,0 +1,457 @@
+<script setup lang="ts">
+import { computed, ref, watch } from "vue";
+import { useI18n } from "vue-i18n";
+import { Label } from "@/components/ui/label";
+import { Button } from "@/components/ui/button";
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
+import { useConnectionStore } from "@/stores/connectionStore";
+import DatabaseIcon from "@/components/icons/DatabaseIcon.vue";
+import * as api from "@/lib/api";
+import { isSchemaAware } from "@/lib/databaseCapabilities";
+import { ArrowLeftRight, GitCompareArrows, Save, FolderOpen, Settings, X } from "@lucide/vue";
+import type { SchemaDiffConfig, SchemaDiffCompareOptions } from "@/types/schemaDiff";
+
+const { t } = useI18n();
+const store = useConnectionStore();
+
+const props = defineProps<{
+  configs: SchemaDiffConfig[];
+  activeConfigId: string;
+  sourceConnectionId: string;
+  sourceDatabase: string;
+  sourceSchema: string;
+  targetConnectionId: string;
+  targetDatabase: string;
+  targetSchema: string;
+  ignoreComments: boolean;
+  options: SchemaDiffCompareOptions;
+  loading: boolean;
+  recentConfigs: SchemaDiffConfig[];
+}>();
+
+const emit = defineEmits<{
+  (e: "update:sourceConnectionId", value: string): void;
+  (e: "update:sourceDatabase", value: string): void;
+  (e: "update:sourceSchema", value: string): void;
+  (e: "update:targetConnectionId", value: string): void;
+  (e: "update:targetDatabase", value: string): void;
+  (e: "update:targetSchema", value: string): void;
+  (e: "update:ignoreComments", value: boolean): void;
+  (e: "compare"): void;
+  (e: "saveConfig"): void;
+  (e: "loadConfig"): void;
+  (e: "showOptions"): void;
+  (e: "swap"): void;
+  (e: "loadHistoryConfig", config: SchemaDiffConfig): void;
+  (e: "deleteHistoryConfig", configId: string): void;
+}>();
+
+const sourceDatabases = ref<string[]>([]);
+const sourceSchemas = ref<string[]>([]);
+const targetDatabases = ref<string[]>([]);
+const targetSchemas = ref<string[]>([]);
+const sourceDbVersion = ref<string | null>(null);
+const targetDbVersion = ref<string | null>(null);
+
+const sqlConnections = computed(() => store.connections.filter((c: any) => c.db_type !== "mongodb" && c.db_type !== "redis"));
+
+const sourceConfig = computed(() => store.getConfig(props.sourceConnectionId));
+const targetConfig = computed(() => store.getConfig(props.targetConnectionId));
+
+const canCompare = computed(() => {
+  return props.sourceConnectionId && props.targetConnectionId && props.sourceDatabase && props.targetDatabase && (!isSchemaAware(sourceConfig.value?.db_type) || props.sourceSchema) && (!isSchemaAware(targetConfig.value?.db_type) || props.targetSchema);
+});
+
+async function loadDatabases(connectionId: string, side: "source" | "target") {
+  if (!connectionId) return;
+  try {
+    await store.ensureConnected(connectionId);
+    const dbs = await api.listDatabases(connectionId);
+    const dbNames = Array.isArray(dbs) ? dbs.map((db: any) => (typeof db === "string" ? db : db.name || db.database)) : [];
+    if (side === "source") {
+      sourceDatabases.value = dbNames;
+      if (props.sourceDatabase) {
+        await fetchDbVersion(connectionId, props.sourceDatabase, props.sourceSchema, "source");
+        // Ensure schema list is loaded after databases are available (handles race with sourceDatabase watcher)
+        if (isSchemaAware(sourceConfig.value?.db_type)) {
+          await loadSchemas("source");
+        }
+      }
+    } else {
+      targetDatabases.value = dbNames;
+      if (props.targetDatabase) {
+        await fetchDbVersion(connectionId, props.targetDatabase, props.targetSchema, "target");
+        // Ensure schema list is loaded after databases are available (handles race with targetDatabase watcher)
+        if (isSchemaAware(targetConfig.value?.db_type)) {
+          await loadSchemas("target");
+        }
+      }
+    }
+  } catch {
+    if (side === "source") {
+      sourceDatabases.value = [];
+      sourceDbVersion.value = null;
+    } else {
+      targetDatabases.value = [];
+      targetDbVersion.value = null;
+    }
+  }
+}
+
+async function loadSchemas(side: "source" | "target") {
+  const connectionId = side === "source" ? props.sourceConnectionId : props.targetConnectionId;
+  const database = side === "source" ? props.sourceDatabase : props.targetDatabase;
+  const schema = side === "source" ? props.sourceSchema : props.targetSchema;
+  if (!connectionId || !database) return;
+
+  try {
+    await store.ensureConnected(connectionId);
+    const schemas = await api.listSchemas(connectionId, database);
+    if (side === "source") {
+      sourceSchemas.value = schemas;
+    } else {
+      targetSchemas.value = schemas;
+    }
+    await fetchDbVersion(connectionId, database, schema, side);
+  } catch {
+    if (side === "source") {
+      sourceSchemas.value = [];
+    } else {
+      targetSchemas.value = [];
+    }
+  }
+}
+
+watch(
+  () => props.sourceConnectionId,
+  async (id) => {
+    if (id) {
+      await loadDatabases(id, "source");
+    } else {
+      sourceDatabases.value = [];
+    }
+  },
+  { immediate: true },
+);
+
+watch(
+  () => props.sourceDatabase,
+  async (db) => {
+    if (db && props.sourceConnectionId) {
+      await loadSchemas("source");
+    } else {
+      sourceSchemas.value = [];
+    }
+  },
+  { immediate: true },
+);
+
+watch(
+  () => props.targetConnectionId,
+  async (id) => {
+    if (id) {
+      await loadDatabases(id, "target");
+    } else {
+      targetDatabases.value = [];
+    }
+  },
+  { immediate: true },
+);
+
+watch(
+  () => props.targetDatabase,
+  async (db) => {
+    if (db && props.targetConnectionId) {
+      await loadSchemas("target");
+    } else {
+      targetSchemas.value = [];
+    }
+  },
+  { immediate: true },
+);
+
+function connectionIconType(connectionId: string) {
+  const c = store.getConfig(connectionId);
+  return c?.driver_profile || c?.db_type || "mysql";
+}
+
+function getConnectionInfo(connectionId: string) {
+  const c = store.getConfig(connectionId);
+  if (!c) return null;
+  return {
+    name: c.name,
+    dbType: c.db_type,
+    host: c.host,
+    port: c.port,
+  };
+}
+
+async function fetchDbVersion(connectionId: string, database: string, schema: string, side: "source" | "target") {
+  try {
+    await store.ensureConnected(connectionId);
+    const config = store.getConfig(connectionId);
+    const dbType = config?.db_type;
+    let sql = "";
+    switch (dbType) {
+      case "postgres":
+      case "opengauss":
+        sql = "SELECT version()";
+        break;
+      case "mysql":
+        sql = "SELECT VERSION()";
+        break;
+      case "sqlite":
+        sql = "SELECT sqlite_version()";
+        break;
+      default:
+        return;
+    }
+    const result = await api.executeQuery(connectionId, database, sql, schema || undefined);
+    if (result.rows && result.rows.length > 0) {
+      const version = String(result.rows[0][0]);
+      if (side === "source") {
+        sourceDbVersion.value = version;
+      } else {
+        targetDbVersion.value = version;
+      }
+    }
+  } catch (e) {
+    console.error(`[fetchDbVersion] Failed to fetch version for ${side}:`, e);
+    if (side === "source") {
+      sourceDbVersion.value = null;
+    } else {
+      targetDbVersion.value = null;
+    }
+  }
+}
+</script>
+
+<template>
+  <div class="space-y-4">
+    <!-- Header -->
+    <div class="flex items-center justify-center gap-4 py-2">
+      <div class="text-center">
+        <div class="text-xs text-muted-foreground">{{ sourceConfig?.name || t("diff.source") }}</div>
+        <div class="text-xs font-medium">{{ sourceDatabase }}{{ sourceSchema ? `.${sourceSchema}` : "" }}</div>
+      </div>
+      <div class="flex items-center gap-2">
+        <DatabaseIcon v-if="sourceConnectionId" :db-type="connectionIconType(sourceConnectionId)" class="w-5 h-5" />
+        <ArrowLeftRight class="w-4 h-4 text-muted-foreground" />
+        <DatabaseIcon v-if="targetConnectionId" :db-type="connectionIconType(targetConnectionId)" class="w-5 h-5" />
+      </div>
+      <div class="text-center">
+        <div class="text-xs text-muted-foreground">{{ targetConfig?.name || t("diff.target") }}</div>
+        <div class="text-xs font-medium">{{ targetDatabase }}{{ targetSchema ? `.${targetSchema}` : "" }}</div>
+      </div>
+    </div>
+
+    <!-- Source / Target Selection -->
+    <div class="grid grid-cols-[1fr_auto_1fr] gap-4 items-start">
+      <!-- Source Side -->
+      <div class="space-y-3">
+        <div class="text-sm font-medium text-blue-500">{{ t("diff.source") }}</div>
+
+        <div class="space-y-1.5">
+          <Label class="text-xs">{{ t("diff.connection") }}</Label>
+          <Select :model-value="sourceConnectionId" @update:model-value="(v: any) => $emit('update:sourceConnectionId', String(v))">
+            <SelectTrigger class="h-8 text-xs">
+              <div class="flex items-center gap-2">
+                <DatabaseIcon v-if="sourceConnectionId" :db-type="connectionIconType(sourceConnectionId)" class="w-3.5 h-3.5" />
+                <SelectValue :placeholder="t('diff.selectConnection')" />
+              </div>
+            </SelectTrigger>
+            <SelectContent>
+              <SelectItem v-for="c in sqlConnections" :key="c.id" :value="c.id">
+                <div class="flex items-center gap-2">
+                  <DatabaseIcon :db-type="c.driver_profile || c.db_type" class="w-3.5 h-3.5" />
+                  {{ c.name }}
+                </div>
+              </SelectItem>
+            </SelectContent>
+          </Select>
+        </div>
+
+        <div class="space-y-1.5">
+          <Label class="text-xs">{{ t("diff.database") }}</Label>
+          <Select :model-value="sourceDatabase" @update:model-value="(v: any) => $emit('update:sourceDatabase', String(v))">
+            <SelectTrigger class="h-8 text-xs" :disabled="!sourceDatabases.length">
+              <SelectValue :placeholder="t('diff.selectDatabase')" />
+            </SelectTrigger>
+            <SelectContent>
+              <SelectItem v-for="db in sourceDatabases" :key="db" :value="db">{{ db }}</SelectItem>
+            </SelectContent>
+          </Select>
+        </div>
+
+        <div v-if="isSchemaAware(sourceConfig?.db_type)" class="space-y-1.5">
+          <Label class="text-xs">{{ t("diff.schema") }}</Label>
+          <Select :model-value="sourceSchema" @update:model-value="(v: any) => $emit('update:sourceSchema', String(v))">
+            <SelectTrigger class="h-8 text-xs" :disabled="!sourceSchemas.length">
+              <SelectValue :placeholder="t('diff.selectSchema')" />
+            </SelectTrigger>
+            <SelectContent>
+              <SelectItem v-for="schema in sourceSchemas" :key="schema" :value="schema">{{ schema }}</SelectItem>
+            </SelectContent>
+          </Select>
+        </div>
+
+        <!-- Source Info -->
+        <div v-if="getConnectionInfo(sourceConnectionId)" class="mt-4 p-3 rounded-lg bg-muted/30 border space-y-1.5">
+          <div class="text-xs font-medium text-blue-500">{{ t("diff.info") }}</div>
+          <div class="grid grid-cols-[80px_1fr] gap-x-2 gap-y-0.5 text-xs">
+            <span class="text-muted-foreground">{{ t("diff.connType") }}</span>
+            <span>{{ getConnectionInfo(sourceConnectionId)?.dbType }}</span>
+            <span class="text-muted-foreground">{{ t("diff.connName") }}</span>
+            <span>{{ getConnectionInfo(sourceConnectionId)?.name }}</span>
+            <span class="text-muted-foreground">{{ t("diff.host") }}</span>
+            <span>{{ getConnectionInfo(sourceConnectionId)?.host }}</span>
+            <span class="text-muted-foreground">{{ t("diff.port") }}</span>
+            <span>{{ getConnectionInfo(sourceConnectionId)?.port }}</span>
+            <span class="text-muted-foreground">{{ t("diff.serverVersion") }}</span>
+            <span>{{ sourceDbVersion || "--" }}</span>
+          </div>
+        </div>
+      </div>
+
+      <!-- Swap Button -->
+      <div class="pt-8">
+        <Button variant="ghost" size="icon" class="h-8 w-8" @click="$emit('swap')">
+          <ArrowLeftRight class="w-4 h-4" />
+        </Button>
+      </div>
+
+      <!-- Target Side -->
+      <div class="space-y-3">
+        <div class="text-sm font-medium text-green-500">{{ t("diff.target") }}</div>
+
+        <div class="space-y-1.5">
+          <Label class="text-xs">{{ t("diff.connection") }}</Label>
+          <Select :model-value="targetConnectionId" @update:model-value="(v: any) => $emit('update:targetConnectionId', String(v))">
+            <SelectTrigger class="h-8 text-xs">
+              <div class="flex items-center gap-2">
+                <DatabaseIcon v-if="targetConnectionId" :db-type="connectionIconType(targetConnectionId)" class="w-3.5 h-3.5" />
+                <SelectValue :placeholder="t('diff.selectConnection')" />
+              </div>
+            </SelectTrigger>
+            <SelectContent>
+              <SelectItem v-for="c in sqlConnections" :key="c.id" :value="c.id">
+                <div class="flex items-center gap-2">
+                  <DatabaseIcon :db-type="c.driver_profile || c.db_type" class="w-3.5 h-3.5" />
+                  {{ c.name }}
+                </div>
+              </SelectItem>
+            </SelectContent>
+          </Select>
+        </div>
+
+        <div class="space-y-1.5">
+          <Label class="text-xs">{{ t("diff.database") }}</Label>
+          <Select :model-value="targetDatabase" @update:model-value="(v: any) => $emit('update:targetDatabase', String(v))">
+            <SelectTrigger class="h-8 text-xs" :disabled="!targetDatabases.length">
+              <SelectValue :placeholder="t('diff.selectDatabase')" />
+            </SelectTrigger>
+            <SelectContent>
+              <SelectItem v-for="db in targetDatabases" :key="db" :value="db">{{ db }}</SelectItem>
+            </SelectContent>
+          </Select>
+        </div>
+
+        <div v-if="isSchemaAware(targetConfig?.db_type)" class="space-y-1.5">
+          <Label class="text-xs">{{ t("diff.schema") }}</Label>
+          <Select :model-value="targetSchema" @update:model-value="(v: any) => $emit('update:targetSchema', String(v))">
+            <SelectTrigger class="h-8 text-xs" :disabled="!targetSchemas.length">
+              <SelectValue :placeholder="t('diff.selectSchema')" />
+            </SelectTrigger>
+            <SelectContent>
+              <SelectItem v-for="schema in targetSchemas" :key="schema" :value="schema">{{ schema }}</SelectItem>
+            </SelectContent>
+          </Select>
+        </div>
+
+        <!-- Target Info -->
+        <div v-if="getConnectionInfo(targetConnectionId)" class="mt-4 p-3 rounded-lg bg-muted/30 border space-y-1.5">
+          <div class="text-xs font-medium text-green-500">{{ t("diff.info") }}</div>
+          <div class="grid grid-cols-[80px_1fr] gap-x-2 gap-y-0.5 text-xs">
+            <span class="text-muted-foreground">{{ t("diff.connType") }}</span>
+            <span>{{ getConnectionInfo(targetConnectionId)?.dbType }}</span>
+            <span class="text-muted-foreground">{{ t("diff.connName") }}</span>
+            <span>{{ getConnectionInfo(targetConnectionId)?.name }}</span>
+            <span class="text-muted-foreground">{{ t("diff.host") }}</span>
+            <span>{{ getConnectionInfo(targetConnectionId)?.host }}</span>
+            <span class="text-muted-foreground">{{ t("diff.port") }}</span>
+            <span>{{ getConnectionInfo(targetConnectionId)?.port }}</span>
+            <span class="text-muted-foreground">{{ t("diff.serverVersion") }}</span>
+            <span>{{ targetDbVersion || "--" }}</span>
+          </div>
+        </div>
+      </div>
+    </div>
+
+    <!-- Options -->
+    <div class="flex items-center gap-2 p-3 rounded-lg border bg-muted/20">
+      <input id="schema-diff-ignore-comments" :checked="ignoreComments" type="checkbox" class="accent-primary" @change="$emit('update:ignoreComments', ($event.target as HTMLInputElement).checked)" />
+      <Label for="schema-diff-ignore-comments" class="cursor-pointer text-xs">
+        {{ t("diff.ignoreComments") }}
+      </Label>
+    </div>
+
+    <!-- Recent Configs Dropdown -->
+    <div v-if="recentConfigs.length > 0" class="flex items-center gap-2">
+      <Label class="text-xs text-muted-foreground">{{ t("diff.recentConfigs") }}</Label>
+      <Select
+        :model-value="''"
+        @update:model-value="
+          (v: any) => {
+            const config = recentConfigs.find((c) => c.id === v);
+            if (config) $emit('loadHistoryConfig', config);
+          }
+        "
+      >
+        <SelectTrigger class="h-8 text-xs w-[280px]">
+          <SelectValue :placeholder="t('diff.selectRecentConfig')" />
+        </SelectTrigger>
+        <SelectContent>
+          <SelectItem v-for="config in recentConfigs" :key="config.id" :value="config.id" class="pr-8">
+            <div class="flex items-center justify-between w-full gap-2">
+              <div class="flex flex-col gap-0.5 min-w-0">
+                <span class="text-xs font-medium truncate">{{ config.name }}</span>
+                <span class="text-[10px] text-muted-foreground truncate">
+                  {{ store.getConfig(config.sourceConnectionId)?.name || config.sourceConnectionId }}
+                  /{{ config.sourceDatabase }}{{ config.sourceSchema ? `.${config.sourceSchema}` : "" }}
+                  →
+                  {{ store.getConfig(config.targetConnectionId)?.name || config.targetConnectionId }}
+                  /{{ config.targetDatabase }}{{ config.targetSchema ? `.${config.targetSchema}` : "" }}
+                </span>
+              </div>
+              <button class="shrink-0 p-1 rounded hover:bg-destructive/10 hover:text-destructive transition-colors" @click.stop="$emit('deleteHistoryConfig', config.id)">
+                <X class="w-3 h-3" />
+              </button>
+            </div>
+          </SelectItem>
+        </SelectContent>
+      </Select>
+    </div>
+
+    <!-- Bottom Actions -->
+    <div class="flex items-center justify-between pt-2">
+      <div class="flex items-center gap-2">
+        <Button variant="outline" size="sm" @click="$emit('saveConfig')">
+          <Save class="w-3.5 h-3.5 mr-1" />
+          {{ t("diff.saveConfig") }}
+        </Button>
+        <Button variant="outline" size="sm" @click="$emit('loadConfig')">
+          <FolderOpen class="w-3.5 h-3.5 mr-1" />
+          {{ t("diff.loadConfig") }}
+        </Button>
+        <Button variant="outline" size="sm" @click="$emit('showOptions')">
+          <Settings class="w-3.5 h-3.5 mr-1" />
+          {{ t("diff.options") }}
+        </Button>
+      </div>
+      <Button size="sm" :disabled="!canCompare || loading" @click="$emit('compare')">
+        <GitCompareArrows class="w-3.5 h-3.5 mr-1" />
+        {{ loading ? t("common.loading") : t("diff.compare") }}
+      </Button>
+    </div>
+  </div>
+</template>
diff --git a/apps/desktop/src/components/diff/SchemaDiffDdlPanel.vue b/apps/desktop/src/components/diff/SchemaDiffDdlPanel.vue
new file mode 100644
index 000000000..c4754d9b9
--- /dev/null
+++ b/apps/desktop/src/components/diff/SchemaDiffDdlPanel.vue
@@ -0,0 +1,390 @@
+<script setup lang="ts">
+import { ref, computed, watch, nextTick } from "vue";
+import { useI18n } from "vue-i18n";
+import { Button } from "@/components/ui/button";
+import { copyToClipboard } from "@/lib/clipboard";
+import { useToast } from "@/composables/useToast";
+import { useSettingsStore } from "@/stores/settingsStore";
+import { DEFAULT_CUSTOM_THEME_DDL_COLORS } from "@/stores/settingsStore";
+import { useDiffScrollSync } from "@/composables/useDiffScrollSync";
+import { buildHunks, type DiffLine } from "@/components/diff/DiffHunkBuilder";
+import DiffSvgConnector from "@/components/diff/DiffSvgConnector.vue";
+import { FileCode, ScrollText, Copy, Play } from "@lucide/vue";
+import { Splitpanes, Pane } from "splitpanes";
+import "splitpanes/dist/splitpanes.css";
+import type { SchemaDiffObject } from "@/lib/schemaDiff";
+
+const { t } = useI18n();
+const { toast } = useToast();
+const settingsStore = useSettingsStore();
+
+const ddlColors = computed(() => {
+  const themes = settingsStore.editorSettings.customThemes;
+  const activeId = settingsStore.editorSettings.activeCustomThemeId;
+  const activeTheme = themes.find((t) => t.id === activeId);
+  return activeTheme?.ddlColors ?? DEFAULT_CUSTOM_THEME_DDL_COLORS;
+});
+
+function toRgba(hex: string, alpha: number): string {
+  const r = parseInt(hex.slice(1, 3), 16);
+  const g = parseInt(hex.slice(3, 5), 16);
+  const b = parseInt(hex.slice(5, 7), 16);
+  return `rgba(${r}, ${g}, ${b}, ${alpha / 100})`;
+}
+
+const props = defineProps<{
+  selectedObject: SchemaDiffObject | null;
+  deploySql: string;
+  deploySqlAll: string;
+}>();
+
+const emit = defineEmits<{
+  executeScript: [];
+}>();
+
+const activeTab = ref<"ddl" | "script" | "scriptAll">("ddl");
+const diffContainerRef = ref<HTMLDivElement>();
+const leftPaneRef = ref<HTMLDivElement>();
+const rightPaneRef = ref<HTMLDivElement>();
+const containerSize = ref({ width: 0, height: 0 });
+const connectorKey = ref(0);
+
+const hunks = computed(() => {
+  if (!props.selectedObject?.sourceDdl && !props.selectedObject?.targetDdl) return [];
+  return buildHunks(props.selectedObject?.sourceDdl || "", props.selectedObject?.targetDdl || "");
+});
+
+const { syncScroll, measureHunks } = useDiffScrollSync({
+  container: diffContainerRef,
+  leftPane: leftPaneRef,
+  rightPane: rightPaneRef,
+  hunks,
+});
+
+// Cache char-level diff segments so we don't recompute on every render
+const modifySegments = computed(() => {
+  const map = new Map<string, { leftSegments: Segment[]; rightSegments: Segment[] }>();
+  for (const hunk of hunks.value) {
+    if (hunk.type !== "modify") continue;
+    for (let i = 0; i < hunk.leftLines.length; i++) {
+      const left = hunk.leftLines[i];
+      const right = hunk.rightLines[i];
+      if (left.isPadding || right.isPadding) continue;
+      const key = `${hunk.id}:${i}`;
+      map.set(key, renderModifyLine(left, right));
+    }
+  }
+  return map;
+});
+
+let measureRaf: number | null = null;
+let measureTimeout: ReturnType<typeof setTimeout> | null = null;
+
+function requestMeasure() {
+  if (measureRaf) return;
+  measureRaf = requestAnimationFrame(() => {
+    measureRaf = null;
+    measureHunks();
+    connectorKey.value++;
+  });
+}
+
+function requestMeasureDebounced() {
+  if (measureTimeout) clearTimeout(measureTimeout);
+  measureTimeout = setTimeout(() => {
+    requestMeasure();
+  }, 100);
+}
+
+function handleScroll(from: "left" | "right") {
+  syncScroll(from);
+  requestMeasureDebounced();
+}
+
+watch(
+  () => props.selectedObject?.id,
+  async () => {
+    await nextTick();
+    updateContainerSize();
+    requestMeasure();
+  },
+);
+
+function updateContainerSize() {
+  const el = diffContainerRef.value;
+  if (!el) return;
+  const rect = el.getBoundingClientRect();
+  containerSize.value = { width: rect.width, height: rect.height };
+}
+
+function onSplitpanesResized() {
+  updateContainerSize();
+  requestMeasure();
+}
+
+function lineBackground(line: DiffLine): string | undefined {
+  if (line.isPadding) return undefined;
+  if (line.type === "delete") {
+    // source-only = will be added to target = green
+    return toRgba(ddlColors.value.addedRowBg, ddlColors.value.addedRowBgAlpha);
+  }
+  if (line.type === "insert") {
+    // target-only = will be removed from target = red
+    return toRgba(ddlColors.value.removedRowBg, ddlColors.value.removedRowBgAlpha);
+  }
+  if (line.type === "modify") {
+    return toRgba(ddlColors.value.modifiedRowBg, ddlColors.value.modifiedRowBgAlpha);
+  }
+  return undefined;
+}
+
+function lineTextClass(line: DiffLine): string {
+  if (line.isPadding) return "text-transparent";
+  if (line.type === "insert") return "line-through opacity-80";
+  return "";
+}
+
+function computeCharDiffs(source: string, target: string): { source: string; target: string }[] {
+  const result: { source: string; target: string }[] = [];
+  let sIdx = 0;
+  let tIdx = 0;
+  while (sIdx < source.length || tIdx < target.length) {
+    if (sIdx >= source.length) {
+      result.push({ source: "", target: target.substring(tIdx) });
+      break;
+    }
+    if (tIdx >= target.length) {
+      result.push({ source: source.substring(sIdx), target: "" });
+      break;
+    }
+    if (source[sIdx] === target[tIdx]) {
+      let matchLen = 0;
+      while (sIdx + matchLen < source.length && tIdx + matchLen < target.length && source[sIdx + matchLen] === target[tIdx + matchLen]) {
+        matchLen++;
+      }
+      result.push({
+        source: source.substring(sIdx, sIdx + matchLen),
+        target: target.substring(tIdx, tIdx + matchLen),
+      });
+      sIdx += matchLen;
+      tIdx += matchLen;
+    } else {
+      let sMatch = -1;
+      let tMatch = -1;
+      for (let i = 0; i < Math.min(10, source.length - sIdx, target.length - tIdx); i++) {
+        if (source[sIdx + i] === target[tIdx]) {
+          sMatch = i;
+          tMatch = 0;
+          break;
+        }
+        if (source[sIdx] === target[tIdx + i]) {
+          sMatch = 0;
+          tMatch = i;
+          break;
+        }
+      }
+      if (sMatch === -1) {
+        sMatch = Math.min(1, source.length - sIdx);
+        tMatch = Math.min(1, target.length - tIdx);
+      }
+      result.push({
+        source: source.substring(sIdx, sIdx + (sMatch > 0 ? sMatch : 1)),
+        target: target.substring(tIdx, tIdx + (tMatch > 0 ? tMatch : 1)),
+      });
+      sIdx += sMatch > 0 ? sMatch : 1;
+      tIdx += tMatch > 0 ? tMatch : 1;
+    }
+  }
+  return result;
+}
+
+function renderModifyLine(leftLine: DiffLine, rightLine: DiffLine): { leftSegments: Segment[]; rightSegments: Segment[] } {
+  const charDiffs = computeCharDiffs(leftLine.content, rightLine.content);
+  const leftSegments: Segment[] = [];
+  const rightSegments: Segment[] = [];
+  for (const cd of charDiffs) {
+    if (cd.source === cd.target) {
+      leftSegments.push({ text: cd.source, changed: false });
+      rightSegments.push({ text: cd.target, changed: false });
+    } else {
+      if (cd.source) leftSegments.push({ text: cd.source, changed: true });
+      if (cd.target) rightSegments.push({ text: cd.target, changed: true });
+    }
+  }
+  return { leftSegments, rightSegments };
+}
+
+interface Segment {
+  text: string;
+  changed: boolean;
+}
+
+function copyDeploySql() {
+  copyToClipboard(props.deploySql);
+  toast(t("diff.copied"), 2000);
+}
+
+function copyDeploySqlAll() {
+  copyToClipboard(props.deploySqlAll);
+  toast(t("diff.copied"), 2000);
+}
+</script>
+
+<template>
+  <div class="border rounded-md flex flex-col h-full">
+    <!-- Tabs -->
+    <div class="flex border-b shrink-0">
+      <button class="px-3 py-1.5 text-xs font-medium flex items-center gap-1 transition-colors" :class="activeTab === 'ddl' ? 'bg-primary/10 text-primary border-b-2 border-primary' : 'hover:bg-muted/50'" @click="activeTab = 'ddl'">
+        <FileCode class="w-3.5 h-3.5" />
+        {{ t("diff.ddlCompare") }}
+      </button>
+      <button class="px-3 py-1.5 text-xs font-medium flex items-center gap-1 transition-colors" :class="activeTab === 'script' ? 'bg-primary/10 text-primary border-b-2 border-primary' : 'hover:bg-muted/50'" @click="activeTab = 'script'">
+        <ScrollText class="w-3.5 h-3.5" />
+        {{ t("diff.deployScript") }}
+      </button>
+      <button class="px-3 py-1.5 text-xs font-medium flex items-center gap-1 transition-colors" :class="activeTab === 'scriptAll' ? 'bg-primary/10 text-primary border-b-2 border-primary' : 'hover:bg-muted/50'" @click="activeTab = 'scriptAll'">
+        <ScrollText class="w-3.5 h-3.5" />
+        {{ t("diff.deployScriptAll") }}
+      </button>
+    </div>
+
+    <!-- DDL Compare -->
+    <div v-if="activeTab === 'ddl'" class="flex-1 overflow-hidden relative">
+      <!-- No object selected -->
+      <div v-if="!selectedObject" class="absolute inset-0 flex items-center justify-center text-sm text-muted-foreground">
+        {{ t("diff.selectObjectToCompare") }}
+      </div>
+      <!-- No DDL data available -->
+      <div v-else-if="!selectedObject.sourceDdl && !selectedObject.targetDdl" class="absolute inset-0 flex items-center justify-center text-sm text-muted-foreground">
+        {{ t("diff.noDdlAvailable") }}
+      </div>
+      <!-- Diff View -->
+      <div v-else ref="diffContainerRef" class="absolute inset-0 font-mono text-xs leading-relaxed">
+        <Splitpanes class="h-full" @resized="onSplitpanesResized">
+          <!-- Source DDL -->
+          <Pane min-size="20">
+            <div ref="leftPaneRef" class="h-full overflow-y-auto border-r" @scroll="handleScroll('left')">
+              <div class="sticky top-0 bg-muted/50 px-3 py-1.5 text-xs font-medium border-b z-10">
+                {{ t("diff.sourceDdl") }}
+              </div>
+              <div v-for="hunk in hunks" :key="`left-${hunk.id}`" :data-hunk-id="hunk.id">
+                <div
+                  v-for="(line, idx) in hunk.leftLines"
+                  :key="`l-${hunk.id}-${idx}`"
+                  class="flex min-h-[1.5em]"
+                  :class="{
+                    'border-l border-r border-yellow-500/40': hunk.type === 'modify',
+                    'border-t rounded-t-sm': hunk.type === 'modify' && idx === 0,
+                    'border-b rounded-b-sm': hunk.type === 'modify' && idx === hunk.leftLines.length - 1,
+                  }"
+                  :style="{ backgroundColor: lineBackground(line) }"
+                >
+                  <span class="text-muted-foreground w-8 text-right pr-2 select-none shrink-0">
+                    {{ line.lineNumber ?? "" }}
+                  </span>
+                  <span class="flex-1 px-1 whitespace-pre" :class="lineTextClass(line)">
+                    <template v-if="line.type === 'modify' && !line.isPadding">
+                      <template v-for="(segment, si) in modifySegments.get(`${hunk.id}:${idx}`)?.leftSegments ?? []" :key="`ls-${si}`">
+                        <span :style="segment.changed ? { backgroundColor: toRgba(ddlColors.modifiedCharBg, ddlColors.modifiedCharBgAlpha) } : undefined">{{ segment.text }}</span>
+                      </template>
+                    </template>
+                    <span v-else>{{ line.isPadding ? "\u00A0" : line.content }}</span>
+                  </span>
+                </div>
+              </div>
+            </div>
+          </Pane>
+
+          <!-- Target DDL -->
+          <Pane min-size="20">
+            <div ref="rightPaneRef" class="h-full overflow-y-auto" @scroll="handleScroll('right')">
+              <div class="sticky top-0 bg-muted/50 px-3 py-1.5 text-xs font-medium border-b z-10">
+                {{ t("diff.targetDdl") }}
+              </div>
+              <div v-for="hunk in hunks" :key="`right-${hunk.id}`" :data-hunk-id="hunk.id">
+                <div
+                  v-for="(line, idx) in hunk.rightLines"
+                  :key="`r-${hunk.id}-${idx}`"
+                  class="flex min-h-[1.5em]"
+                  :class="{
+                    'border-l border-r border-yellow-500/40': hunk.type === 'modify',
+                    'border-t rounded-t-sm': hunk.type === 'modify' && idx === 0,
+                    'border-b rounded-b-sm': hunk.type === 'modify' && idx === hunk.rightLines.length - 1,
+                  }"
+                  :style="{ backgroundColor: lineBackground(line) }"
+                >
+                  <span class="text-muted-foreground w-8 text-right pr-2 select-none shrink-0">
+                    {{ line.lineNumber ?? "" }}
+                  </span>
+                  <span class="flex-1 px-1 whitespace-pre" :class="lineTextClass(line)">
+                    <template v-if="line.type === 'modify' && !line.isPadding">
+                      <template v-for="(segment, si) in modifySegments.get(`${hunk.id}:${idx}`)?.rightSegments ?? []" :key="`rs-${si}`">
+                        <span :style="segment.changed ? { backgroundColor: toRgba(ddlColors.modifiedCharBg, ddlColors.modifiedCharBgAlpha) } : undefined">{{ segment.text }}</span>
+                      </template>
+                    </template>
+                    <span v-else>{{ line.isPadding ? "\u00A0" : line.content }}</span>
+                  </span>
+                </div>
+              </div>
+            </div>
+          </Pane>
+        </Splitpanes>
+
+        <!-- SVG Connector Overlay -->
+        <DiffSvgConnector :key="connectorKey" :hunks="hunks" :container-width="containerSize.width" :container-height="containerSize.height" />
+      </div>
+    </div>
+
+    <!-- Deploy Script -->
+    <div v-else-if="activeTab === 'script'" class="flex-1 flex flex-col overflow-hidden">
+      <div class="flex items-center justify-between px-3 py-1.5 border-b shrink-0">
+        <span class="text-xs text-muted-foreground">{{ t("diff.deployScriptDesc") }}</span>
+        <div class="flex gap-1">
+          <Button variant="ghost" size="sm" class="h-6 px-2 text-xs gap-1" @click="copyDeploySql">
+            <Copy class="w-3 h-3" />
+            {{ t("diff.copy") }}
+          </Button>
+          <Button variant="ghost" size="sm" class="h-6 px-2 text-xs gap-1" @click="$emit('executeScript')">
+            <Play class="w-3 h-3" />
+            {{ t("diff.execute") }}
+          </Button>
+        </div>
+      </div>
+      <div class="flex-1 overflow-auto p-3">
+        <pre class="text-xs whitespace-pre-wrap font-mono">{{ deploySql || t("diff.noDeployScript") }}</pre>
+      </div>
+    </div>
+
+    <!-- Deploy Script All -->
+    <div v-else-if="activeTab === 'scriptAll'" class="flex-1 flex flex-col overflow-hidden">
+      <div class="flex items-center justify-between px-3 py-1.5 border-b shrink-0">
+        <span class="text-xs text-muted-foreground">{{ t("diff.deployScriptAllDesc") }}</span>
+        <div class="flex gap-1">
+          <Button variant="ghost" size="sm" class="h-6 px-2 text-xs gap-1" @click="copyDeploySqlAll">
+            <Copy class="w-3 h-3" />
+            {{ t("diff.copy") }}
+          </Button>
+          <Button variant="ghost" size="sm" class="h-6 px-2 text-xs gap-1" @click="$emit('executeScript')">
+            <Play class="w-3 h-3" />
+            {{ t("diff.executeAll") }}
+          </Button>
+        </div>
+      </div>
+      <div class="flex-1 overflow-auto p-3">
+        <pre class="text-xs whitespace-pre-wrap font-mono">{{ deploySqlAll || t("diff.noDeployScriptAll") }}</pre>
+      </div>
+    </div>
+  </div>
+</template>
+
+<style scoped>
+:deep(.splitpanes--vertical > .splitpanes__splitter) {
+  background-color: hsl(var(--border));
+  width: 4px;
+  cursor: col-resize;
+  position: relative;
+}
+:deep(.splitpanes--vertical > .splitpanes__splitter:hover) {
+  background-color: hsl(var(--primary));
+}
+</style>
diff --git a/apps/desktop/src/components/diff/SchemaDiffDeployStep.vue b/apps/desktop/src/components/diff/SchemaDiffDeployStep.vue
new file mode 100644
index 000000000..0c6b1a533
--- /dev/null
+++ b/apps/desktop/src/components/diff/SchemaDiffDeployStep.vue
@@ -0,0 +1,355 @@
+<script setup lang="ts">
+import { ref, computed, onMounted, onUnmounted, watch, shallowRef } from "vue";
+import { useI18n } from "vue-i18n";
+import { Button } from "@/components/ui/button";
+import { copyToClipboard } from "@/lib/clipboard";
+import { useToast } from "@/composables/useToast";
+import { useSettingsStore } from "@/stores/settingsStore";
+import { useTheme } from "@/composables/useTheme";
+import { loadEditorTheme, editorFontTheme } from "@/lib/editorThemes";
+import { Splitpanes, Pane } from "splitpanes";
+import type { SchemaDiffObject, DiffOperationType, DiffObjectKind } from "@/lib/schemaDiff";
+import { ArrowLeft, Copy, Download, Play, Loader2, PlusCircle, XCircle, ArrowRightLeft, Table, Eye, FunctionSquare, ListOrdered, ScrollText, UserCog, ListTree, Link2, Zap } from "@lucide/vue";
+
+const { t } = useI18n();
+const { toast } = useToast();
+const settingsStore = useSettingsStore();
+const { isDark } = useTheme();
+
+const props = defineProps<{
+  deploySql: string;
+  selectedObjects: SchemaDiffObject[];
+  targetConnectionId: string;
+  targetDatabase: string;
+  targetSchema: string;
+  executing: boolean;
+}>();
+
+const emit = defineEmits<{
+  "update:deploySql": [sql: string];
+  back: [];
+  deploy: [];
+}>();
+
+const editorContainer = ref<HTMLDivElement>();
+const editorView = shallowRef<any>(null);
+const isEditorReady = ref(false);
+const selectedObjectId = ref<string | null>(null);
+
+// Parse object positions in deploySql
+const objectPositions = computed(() => {
+  const positions = new Map<string, { from: number; to: number }>();
+  const sql = props.deploySql;
+  for (const obj of topLevelObjects.value) {
+    const patterns = [`-- Create ${obj.objectKind}: ${obj.name}`, `-- Modify ${obj.objectKind}: ${obj.name}`, `-- Drop ${obj.objectKind}: ${obj.name}`];
+    for (const pattern of patterns) {
+      const index = sql.indexOf(pattern);
+      if (index !== -1) {
+        let endPos = sql.length;
+        const remaining = sql.slice(index + pattern.length);
+        const nextMatch = remaining.match(/--\s*(Create|Modify|Drop)\s+\w+:/);
+        if (nextMatch && nextMatch.index !== undefined) {
+          endPos = index + pattern.length + nextMatch.index;
+        }
+        positions.set(obj.id, { from: index, to: endPos });
+        break;
+      }
+    }
+  }
+  return positions;
+});
+
+async function handleSelectObject(obj: SchemaDiffObject) {
+  selectedObjectId.value = obj.id;
+  if (editorView.value) {
+    const pos = objectPositions.value.get(obj.id);
+    if (pos) {
+      const { EditorView } = await import("@codemirror/view");
+      editorView.value.dispatch({
+        effects: EditorView.scrollIntoView(pos.from, { y: "start" }),
+      });
+    }
+  }
+}
+
+// Filter top-level selected objects (exclude children and none)
+const topLevelObjects = computed(() => {
+  const operationOrder: Record<DiffOperationType, number> = { create: 0, modify: 1, delete: 2, none: 3 };
+  return props.selectedObjects
+    .filter((o) => {
+      const isTopLevel = !o.id.startsWith("col-") && !o.id.startsWith("idx-") && !o.id.startsWith("fk-") && !o.id.startsWith("trg-");
+      return o.selected && o.operationType !== "none" && isTopLevel;
+    })
+    .sort((a, b) => operationOrder[a.operationType] - operationOrder[b.operationType]);
+});
+
+const operationCounts = computed(() => {
+  const counts: Record<DiffOperationType, number> = { create: 0, modify: 0, delete: 0, none: 0 };
+  for (const obj of topLevelObjects.value) {
+    counts[obj.operationType]++;
+  }
+  return counts;
+});
+
+const operationIcons: Record<DiffOperationType, any> = {
+  modify: ArrowRightLeft,
+  create: PlusCircle,
+  delete: XCircle,
+  none: ArrowRightLeft,
+};
+
+const operationColors: Record<DiffOperationType, string> = {
+  modify: "text-blue-500",
+  create: "text-green-500",
+  delete: "text-red-500",
+  none: "text-muted-foreground",
+};
+
+// Initialize CodeMirror editor
+async function initEditor() {
+  if (!editorContainer.value) return;
+
+  const [{ EditorView }, { EditorState, Compartment }, { sql, PostgreSQL, SQLDialect }, { basicSetup }] = await Promise.all([import("@codemirror/view"), import("@codemirror/state"), import("@codemirror/lang-sql"), import("codemirror")]);
+
+  const themeComp = new Compartment();
+  const fontComp = new Compartment();
+
+  const editorTheme = settingsStore.editorSettings.theme;
+  const appAppearance = isDark.value ? "dark" : "light";
+  const fontSize = settingsStore.editorSettings.fontSize;
+  const fontFamily = settingsStore.editorSettings.fontFamily;
+
+  const themeExt = await loadEditorTheme(editorTheme, appAppearance);
+  const fontExt = editorFontTheme(EditorView, fontSize, fontFamily, { fixedHeight: true, scrollable: true });
+
+  // Custom PostgreSQL dialect with PL/pgSQL support (same as QueryEditor.vue)
+  const extraKeywords = "PIVOT UNPIVOT EXCLUDE REPLACE QUALIFY ASOF POSITIONAL ANTI SEMI SAMPLE TABLESAMPLE STRUCT MAP LIST ARRAY LAMBDA UNNEST LATERAL FILTER RECURSIVE SUMMARIZE PRAGMA READ_CSV READ_PARQUET READ_JSON DESCRIBE SHOW COPY EXPORT IMPORT";
+  const plpgsqlKeywords = "PERFORM";
+  const plpgsqlTypes = " RECORD JSON JSONB";
+  const plpgsqlBuiltin = "SQLERRM TG_NAME TG_WHEN TG_LEVEL TG_OP TG_RELID TG_RELNAME TG_TABLE_NAME TG_TABLE_SCHEMA TG_NARGS TG_ARGV";
+
+  const dialect = SQLDialect.define({
+    ...PostgreSQL.spec,
+    keywords: [PostgreSQL.spec.keywords || "", extraKeywords, plpgsqlKeywords].filter(Boolean).join(" "),
+    types: [PostgreSQL.spec.types || "", plpgsqlTypes].filter(Boolean).join(" ") || undefined,
+    builtin: [PostgreSQL.spec.builtin || "", plpgsqlBuiltin].filter(Boolean).join(" ") || undefined,
+    doubleDollarQuotedStrings: false,
+  });
+
+  const state = EditorState.create({
+    doc: props.deploySql,
+    extensions: [
+      basicSetup,
+      sql({ dialect }),
+      themeComp.of(themeExt),
+      fontComp.of(fontExt),
+      EditorView.updateListener.of((update: any) => {
+        if (update.docChanged) {
+          emit("update:deploySql", update.state.doc.toString());
+        }
+      }),
+    ],
+  });
+
+  editorView.value = new EditorView({ state, parent: editorContainer.value });
+  isEditorReady.value = true;
+}
+
+// Watch for external deploySql changes
+watch(
+  () => props.deploySql,
+  (newVal) => {
+    if (editorView.value && editorView.value.state.doc.toString() !== newVal) {
+      editorView.value.dispatch({
+        changes: { from: 0, to: editorView.value.state.doc.length, insert: newVal },
+      });
+    }
+  },
+);
+
+onMounted(() => {
+  initEditor();
+});
+
+onUnmounted(() => {
+  editorView.value?.destroy();
+  editorView.value = null;
+});
+
+function handleCopy() {
+  copyToClipboard(props.deploySql);
+  toast(t("diff.copied"), 2000);
+}
+
+async function handleExport() {
+  try {
+    const dbName = props.targetDatabase || "deploy";
+    const timestamp = new Date().toISOString().replace(/[:.]/g, "-").slice(0, 19);
+    const defaultName = `${dbName}_deploy_${timestamp}.sql`;
+
+    const { save } = await import("@tauri-apps/plugin-dialog");
+    const path = await save({
+      defaultPath: defaultName,
+      filters: [{ name: "SQL", extensions: ["sql"] }],
+    });
+
+    if (path) {
+      const { writeTextFile } = await import("@tauri-apps/plugin-fs");
+      await writeTextFile(path, props.deploySql);
+      toast(t("diff.exportSuccess"), 3000);
+    }
+  } catch (e: any) {
+    toast(e?.message || String(e), 5000);
+  }
+}
+
+function handleDeploy() {
+  emit("deploy");
+}
+
+function getOperationLabel(type: DiffOperationType): string {
+  switch (type) {
+    case "create":
+      return t("diff.create");
+    case "delete":
+      return t("diff.delete");
+    case "modify":
+      return t("diff.modify");
+    default:
+      return "";
+  }
+}
+
+function getObjectIcon(kind: DiffObjectKind) {
+  switch (kind) {
+    case "table":
+      return Table;
+    case "view":
+      return Eye;
+    case "function":
+      return FunctionSquare;
+    case "sequence":
+      return ListOrdered;
+    case "rule":
+      return ScrollText;
+    case "owner":
+      return UserCog;
+    case "index":
+      return ListTree;
+    case "foreignKey":
+      return Link2;
+    case "trigger":
+      return Zap;
+    default:
+      return Table;
+  }
+}
+
+function getObjectIconColor(kind: DiffObjectKind): string {
+  switch (kind) {
+    case "table":
+      return "text-amber-500";
+    case "view":
+      return "text-cyan-500";
+    case "function":
+      return "text-purple-500";
+    case "sequence":
+      return "text-orange-500";
+    case "rule":
+      return "text-pink-500";
+    case "owner":
+      return "text-indigo-500";
+    case "index":
+      return "text-teal-500";
+    case "foreignKey":
+      return "text-lime-500";
+    case "trigger":
+      return "text-rose-500";
+    default:
+      return "text-muted-foreground";
+  }
+}
+</script>
+
+<template>
+  <div class="flex flex-col h-full">
+    <!-- Header -->
+    <div class="flex items-center justify-between px-3 py-2 border-b shrink-0">
+      <div class="flex items-center gap-2">
+        <Button variant="ghost" size="sm" class="h-7 px-2 text-xs gap-1" @click="$emit('back')">
+          <ArrowLeft class="w-3.5 h-3.5" />
+          {{ t("diff.backToResult") }}
+        </Button>
+        <span class="text-sm font-medium">{{ t("diff.deployReview") }}</span>
+        <span class="text-xs text-muted-foreground"> ({{ t("diff.selectedCount", { selected: topLevelObjects.length, total: topLevelObjects.length }) }}) </span>
+      </div>
+      <div class="flex items-center gap-3 text-xs">
+        <span class="text-green-500">{{ t("diff.create") }}: {{ operationCounts.create }}</span>
+        <span class="text-blue-500">{{ t("diff.modify") }}: {{ operationCounts.modify }}</span>
+        <span class="text-red-500">{{ t("diff.delete") }}: {{ operationCounts.delete }}</span>
+      </div>
+    </div>
+
+    <!-- Content -->
+    <Splitpanes class="flex-1 min-h-0">
+      <Pane size="30" min-size="20">
+        <div class="h-full overflow-auto p-2 space-y-0.5">
+          <div v-for="obj in topLevelObjects" :key="obj.id" class="flex items-center gap-2 px-2 py-1.5 rounded text-xs hover:bg-accent/50 cursor-pointer" :class="{ 'bg-primary/10': selectedObjectId === obj.id }" @click="handleSelectObject(obj)">
+            <component :is="operationIcons[obj.operationType]" class="w-3.5 h-3.5 shrink-0" :class="operationColors[obj.operationType]" />
+            <component :is="getObjectIcon(obj.objectKind)" class="w-3.5 h-3.5 shrink-0" :class="getObjectIconColor(obj.objectKind)" />
+            <span class="truncate">{{ obj.name }}</span>
+            <span class="text-[10px] text-muted-foreground shrink-0 ml-auto">
+              {{ getOperationLabel(obj.operationType) }}
+            </span>
+          </div>
+          <div v-if="topLevelObjects.length === 0" class="text-xs text-muted-foreground text-center py-4">
+            {{ t("diff.noObjectsSelected") }}
+          </div>
+        </div>
+      </Pane>
+
+      <Pane size="70" min-size="40">
+        <div ref="editorContainer" class="h-full w-full" />
+      </Pane>
+    </Splitpanes>
+
+    <!-- Footer -->
+    <div class="flex items-center justify-between px-3 py-2 border-t shrink-0 gap-2">
+      <div class="flex items-center gap-2">
+        <Button variant="outline" size="sm" class="h-7 text-xs gap-1" @click="handleCopy">
+          <Copy class="w-3.5 h-3.5" />
+          {{ t("diff.copyScript") }}
+        </Button>
+        <Button variant="outline" size="sm" class="h-7 text-xs gap-1" @click="handleExport">
+          <Download class="w-3.5 h-3.5" />
+          {{ t("diff.exportSql") }}
+        </Button>
+      </div>
+      <div class="flex items-center gap-2">
+        <Button variant="ghost" size="sm" class="h-7 text-xs gap-1" @click="$emit('back')">
+          <ArrowLeft class="w-3.5 h-3.5" />
+          {{ t("diff.backToResult") }}
+        </Button>
+        <Button variant="ghost" size="sm" class="h-7 text-xs" @click="$emit('back')">
+          {{ t("diff.cancel") }}
+        </Button>
+        <Button size="sm" class="h-7 text-xs gap-1" :disabled="topLevelObjects.length === 0 || executing" @click="handleDeploy">
+          <Loader2 v-if="executing" class="w-3.5 h-3.5 animate-spin" />
+          <Play v-else class="w-3.5 h-3.5" />
+          {{ t("diff.deployToServer") }}
+        </Button>
+      </div>
+    </div>
+  </div>
+</template>
+
+<style scoped>
+:deep(.splitpanes--vertical > .splitpanes__splitter) {
+  width: 4px;
+  background: hsl(var(--border));
+  cursor: col-resize;
+}
+:deep(.splitpanes--vertical > .splitpanes__splitter:hover) {
+  background: hsl(var(--primary));
+}
+</style>
diff --git a/apps/desktop/src/components/diff/SchemaDiffDialog.vue b/apps/desktop/src/components/diff/SchemaDiffDialog.vue
index f05c937ef..600388c13 100644
--- a/apps/desktop/src/components/diff/SchemaDiffDialog.vue
+++ b/apps/desktop/src/components/diff/SchemaDiffDialog.vue
@@ -1,31 +1,29 @@
 <script setup lang="ts">
-import { computed, ref, watch } from "vue";
+import { computed, ref, watch, onBeforeUnmount } from "vue";
 import { useI18n } from "vue-i18n";
 import { Dialog, DialogHeader, DialogTitle, DialogFooter, DialogContent } from "@/components/ui/dialog";
 import { Button } from "@/components/ui/button";
-import { Badge } from "@/components/ui/badge";
-import { Label } from "@/components/ui/label";
-import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
 import { useConnectionStore } from "@/stores/connectionStore";
-import DatabaseIcon from "@/components/icons/DatabaseIcon.vue";
-import * as api from "@/lib/api";
-import { isSchemaAware } from "@/lib/databaseCapabilities";
-import { databaseOptionsForConnection } from "@/composables/useDatabaseOptions";
-import { copyToClipboard } from "@/lib/clipboard";
-import type { TableDiff, TableSchemaDetail } from "@/lib/schemaDiff";
-import type { TableInfo } from "@/types/database";
-import { sqlMetadataRefreshTarget } from "@/lib/sqlMetadataRefresh";
 import { useToast } from "@/composables/useToast";
-import { Loader2, Copy, Play, GitCompareArrows, ArrowLeftRight } from "@lucide/vue";
-import { useSqlHighlighter } from "@/composables/useSqlHighlighter";
+import { GitCompareArrows, ArrowLeft, Play, Loader2, Maximize2, Minimize2, AlertTriangle, CircleCheck } from "@lucide/vue";
+import * as api from "@/lib/api";
+import { useSchemaDiffConfig } from "@/composables/useSchemaDiffConfig";
+import SchemaDiffConfigStep from "@/components/diff/SchemaDiffConfigStep.vue";
+import SchemaDiffObjectTree from "@/components/diff/SchemaDiffObjectTree.vue";
+import SchemaDiffDdlPanel from "@/components/diff/SchemaDiffDdlPanel.vue";
+import SchemaDiffDeployStep from "@/components/diff/SchemaDiffDeployStep.vue";
+import SchemaDiffOptionsPanel from "@/components/diff/SchemaDiffOptionsPanel.vue";
 
-interface SelectableTableDiff extends TableDiff {
-  selected: boolean;
-}
+import { getSchemaDiffOptionsForDbType } from "@/lib/schemaDiffOptions";
+import { getDefaultOptionsForDbType } from "@/types/schemaDiff";
+import type { SchemaDiffCompareOptions, SchemaDiffConfig } from "@/types/schemaDiff";
+import type { ObjectSourceKind } from "@/types/database";
+import { convertToSchemaDiffObjects, groupDiffObjects, type OperationGroup, type SchemaDiffObject, type DiffOperationType, type DiffObjectKind, type SchemaDiffPreparation } from "@/lib/schemaDiff";
+import { Splitpanes, Pane } from "splitpanes";
+import "splitpanes/dist/splitpanes.css";
 
 const { t } = useI18n();
 const { toast } = useToast();
-const { highlight } = useSqlHighlighter();
 const open = defineModel<boolean>("open", { default: false });
 const store = useConnectionStore();
 
@@ -35,333 +33,649 @@ const props = defineProps<{
   prefillSchema?: string;
 }>();
 
+// Wizard state
+const step = ref<"config" | "compare" | "result" | "deploy-review">("config");
+
+// Deploy confirm dialog
+const showConfirmDialog = ref(false);
+
+// Source/Target selections
 const sourceConnectionId = ref("");
 const sourceDatabase = ref("");
-const sourceDatabases = ref<string[]>([]);
 const sourceSchema = ref("");
-const sourceSchemas = ref<string[]>([]);
-
 const targetConnectionId = ref("");
 const targetDatabase = ref("");
-const targetDatabases = ref<string[]>([]);
 const targetSchema = ref("");
-const targetSchemas = ref<string[]>([]);
-
-const step = ref<"select" | "comparing" | "result">("select");
-const diffs = ref<SelectableTableDiff[]>([]);
-const loadingMeta = ref(false);
-const executing = ref(false);
-const executedCount = ref(0);
-const executeTotal = ref(0);
-const syncErrors = ref<{ sql: string; error: string }[]>([]);
-const syncSql = ref("");
 const ignoreComments = ref(false);
-const highlightedSyncSql = computed(() => highlight(syncSql.value));
 
-const allSelected = computed(() => diffs.value.length > 0 && diffs.value.every((d) => d.selected));
-const someSelected = computed(() => diffs.value.some((d) => d.selected) && !allSelected.value);
-
-function toggleAll() {
-  const next = !allSelected.value;
-  diffs.value.forEach((d) => (d.selected = next));
-  refreshSelectedSyncSql().catch((e) => toast(e?.message || String(e), 5000));
-}
-
-const sqlConnections = computed(() => store.connections.filter((c) => !["redis", "mongodb", "elasticsearch", "etcd"].includes(c.db_type)));
-
-const canCompare = computed(() => sourceConnectionId.value && sourceDatabase.value && sourceSchema.value && targetConnectionId.value && targetDatabase.value && targetSchema.value);
-
-function connectionIconType(connectionId: string) {
-  const config = store.getConfig(connectionId);
-  return config?.driver_profile || config?.db_type || "mysql";
-}
-
-function swapSourceTarget() {
-  const tmpConnId = sourceConnectionId.value;
-  const tmpDb = sourceDatabase.value;
-  const tmpDbs = sourceDatabases.value;
-  const tmpSchema = sourceSchema.value;
-  const tmpSchemas = sourceSchemas.value;
-  sourceConnectionId.value = targetConnectionId.value;
-  sourceDatabase.value = targetDatabase.value;
-  sourceDatabases.value = targetDatabases.value;
-  sourceSchema.value = targetSchema.value;
-  sourceSchemas.value = targetSchemas.value;
-  targetConnectionId.value = tmpConnId;
-  targetDatabase.value = tmpDb;
-  targetDatabases.value = tmpDbs;
-  targetSchema.value = tmpSchema;
-  targetSchemas.value = tmpSchemas;
-  resetResult();
-}
-
-async function loadDatabases(connectionId: string, side: "source" | "target") {
-  if (!connectionId) return;
-  loadingMeta.value = true;
-  try {
-    await store.ensureConnected(connectionId);
-    const dbs = await api.listDatabases(connectionId);
-    const names = databaseOptionsForConnection(
-      dbs.map((d) => d.name),
-      store.getConfig(connectionId),
-    );
-    if (side === "source") {
-      sourceDatabases.value = names;
-      sourceDatabase.value = names.length === 1 ? names[0] : "";
-      sourceSchemas.value = [];
-      sourceSchema.value = "";
-    } else {
-      targetDatabases.value = names;
-      targetDatabase.value = names.length === 1 ? names[0] : "";
-      targetSchemas.value = [];
-      targetSchema.value = "";
-    }
-  } catch {
-    if (side === "source") sourceDatabases.value = [];
-    else targetDatabases.value = [];
-  } finally {
-    loadingMeta.value = false;
-  }
-}
-
-async function loadSchemas(side: "source" | "target", preferredSchema = "") {
-  const connectionId = side === "source" ? sourceConnectionId.value : targetConnectionId.value;
-  const database = side === "source" ? sourceDatabase.value : targetDatabase.value;
-  if (!connectionId || !database) return;
-  const config = store.getConfig(connectionId);
-  if (!isSchemaAware(config?.db_type)) {
-    if (side === "source") {
-      sourceSchemas.value = [];
-      sourceSchema.value = database;
-    } else {
-      targetSchemas.value = [];
-      targetSchema.value = database;
-    }
-    return;
-  }
-
-  const schemas = await api.listSchemas(connectionId, database);
-  const selected = preferredSchema && schemas.includes(preferredSchema) ? preferredSchema : schemas.includes("public") ? "public" : (schemas[0] ?? "");
-  if (side === "source") {
-    sourceSchemas.value = schemas;
-    sourceSchema.value = selected;
-  } else {
-    targetSchemas.value = schemas;
-    targetSchema.value = selected;
-  }
-}
-
-async function startCompare() {
-  if (!canCompare.value) return;
-  step.value = "comparing";
-  diffs.value = [];
-  syncSql.value = "";
-
-  try {
-    await store.ensureConnected(sourceConnectionId.value);
-    await store.ensureConnected(targetConnectionId.value);
-    const targetConfig = store.getConfig(targetConnectionId.value);
-
-    const [srcTables, tgtTables] = await Promise.all([api.listTables(sourceConnectionId.value, sourceDatabase.value, sourceSchema.value), api.listTables(targetConnectionId.value, targetDatabase.value, targetSchema.value)]);
-
-    const { sourceDetails, targetDetails } = await loadSchemaDiffDetails(srcTables, tgtTables);
-    const result = await api.prepareSchemaDiff({
-      sourceTables: srcTables,
-      targetTables: tgtTables,
-      sourceDetails,
-      targetDetails,
-      databaseType: targetConfig?.db_type || "mysql",
-      targetSchema: targetSchema.value,
-      ignoreComments: ignoreComments.value,
-    });
-
-    diffs.value = result.diffs.map((diff) => ({ ...diff, selected: true }));
-    syncSql.value = result.syncSql;
-    step.value = "result";
-  } catch (e: any) {
-    toast(e?.message || String(e), 5000);
-    step.value = "select";
-  }
-}
-
-async function loadSchemaDiffDetails(sourceTables: TableInfo[], targetTables: TableInfo[]) {
-  const sourceTableNames = sourceTables.filter((table) => table.table_type !== "VIEW").map((table) => table.name);
-  const targetTableNames = targetTables.filter((table) => table.table_type !== "VIEW").map((table) => table.name);
-  const targetTableSet = new Set(targetTableNames);
-  const sourceTableSet = new Set(sourceTableNames);
-  const sourceDetails: TableSchemaDetail[] = [];
-  const targetDetails: TableSchemaDetail[] = [];
-
-  for (const name of sourceTableNames) {
-    if (targetTableSet.has(name)) {
-      const [columns, indexes, foreignKeys, triggers] = await Promise.all([
-        api.getColumns(sourceConnectionId.value, sourceDatabase.value, sourceSchema.value, name),
-        api.listIndexes(sourceConnectionId.value, sourceDatabase.value, sourceSchema.value, name),
-        api.listForeignKeys(sourceConnectionId.value, sourceDatabase.value, sourceSchema.value, name),
-        api.listTriggers(sourceConnectionId.value, sourceDatabase.value, sourceSchema.value, name),
-      ]);
-      sourceDetails.push({ name, columns, indexes, foreignKeys, triggers });
-    } else {
-      const ddl = await api.getTableDdl(sourceConnectionId.value, sourceDatabase.value, sourceSchema.value, name);
-      sourceDetails.push({ name, ddl });
-    }
-  }
-
-  for (const name of targetTableNames) {
-    if (!sourceTableSet.has(name)) continue;
-    const [columns, indexes, foreignKeys, triggers] = await Promise.all([
-      api.getColumns(targetConnectionId.value, targetDatabase.value, targetSchema.value, name),
-      api.listIndexes(targetConnectionId.value, targetDatabase.value, targetSchema.value, name),
-      api.listForeignKeys(targetConnectionId.value, targetDatabase.value, targetSchema.value, name),
-      api.listTriggers(targetConnectionId.value, targetDatabase.value, targetSchema.value, name),
-    ]);
-    targetDetails.push({ name, columns, indexes, foreignKeys, triggers });
-  }
-
-  return { sourceDetails, targetDetails };
-}
-
-async function refreshSelectedSyncSql() {
-  const selected = diffs.value.filter((diff) => diff.selected);
-  if (selected.length === 0) {
-    syncSql.value = "";
-    return;
-  }
+// Options panel
+const showOptionsPanel = ref(false);
+const optionTree = computed(() => {
   const targetConfig = store.getConfig(targetConnectionId.value);
-  syncSql.value = await api.generateSchemaSyncSql(selected, targetConfig?.db_type || "mysql", targetSchema.value);
-}
+  const dbType = targetConfig?.db_type || "postgres";
+  return getSchemaDiffOptionsForDbType(dbType);
+});
 
-function onDiffSelectionChange() {
-  refreshSelectedSyncSql().catch((e) => toast(e?.message || String(e), 5000));
-}
+// Compare state
+const loading = ref(false);
+const diffObjects = ref<SchemaDiffObject[]>([]);
+const diffGroups = ref<OperationGroup[]>([]);
+const selectedObjectId = ref<string | null>(null);
+const deploySql = ref("");
+const deploySqlAll = ref("");
+const executing = ref(false);
+const lastDiffResult = ref<SchemaDiffPreparation | null>(null);
+const targetDbVersion = ref<string | null>(null);
+const showResultDialog = ref(false);
+const deployResult = ref<{ success: boolean; message: string; affectedRows?: number } | null>(null);
 
-async function executeSql() {
-  const sql = syncSql.value.trim();
-  if (!sql || executing.value) return;
-  executing.value = true;
-  syncErrors.value = [];
-
-  const statements = sql
-    .split(/;\s*\n/)
-    .map((s) => s.trim())
-    .filter((s) => s && !s.startsWith("--"));
-  executeTotal.value = statements.length;
-  executedCount.value = 0;
+// Dialog size memory (width + height + splitpanes ratio)
+const DIALOG_SIZE_KEY = "dbx-schema-diff-size";
+const SPLITPANES_SIZE_KEY = "dbx-schema-diff-splitpanes-v2";
+const savedSize = JSON.parse(localStorage.getItem(DIALOG_SIZE_KEY) || "null");
 
+const savedSplitpanes = (() => {
   try {
-    await store.ensureConnected(targetConnectionId.value);
-    for (const stmt of statements) {
-      try {
-        await api.executeQuery(targetConnectionId.value, targetDatabase.value, stmt, targetSchema.value);
-      } catch (e: any) {
-        syncErrors.value.push({ sql: stmt, error: e?.message || String(e) });
-      }
-      executedCount.value++;
-    }
-    const failed = syncErrors.value.length;
-    if (failed === 0) {
-      const refreshTarget = sqlMetadataRefreshTarget(sql, targetSchema.value);
-      if (refreshTarget.scope === "connection") {
-        await store.loadDatabases(targetConnectionId.value, { force: true });
-      } else if (refreshTarget.scope === "database") {
-        await store.refreshObjectListTreeNode(targetConnectionId.value, targetDatabase.value, refreshTarget.schema);
-      }
-      toast(t("diff.syncSuccess"), 2000);
-      open.value = false;
-    } else {
-      toast(t("diff.syncSummary", { success: statements.length - failed, failed }), 5000);
-    }
-  } catch (e: any) {
-    toast(e?.message || String(e), 5000);
-  } finally {
-    executing.value = false;
+    const raw = localStorage.getItem(SPLITPANES_SIZE_KEY);
+    if (!raw) return null;
+    const val = JSON.parse(raw);
+    return typeof val === "number" && val >= 10 && val <= 90 ? val : null;
+  } catch {
+    return null;
+  }
+})();
+
+// Splitpanes size memory (percentage for first pane)
+const splitpanesSize = ref(savedSplitpanes ?? 60);
+
+function handleSplitpanesResized(payload: { panes: { size: number }[] }) {
+  if (payload.panes && payload.panes.length > 0) {
+    const size = payload.panes[0].size;
+    splitpanesSize.value = size;
+    localStorage.setItem(SPLITPANES_SIZE_KEY, JSON.stringify(size));
   }
 }
 
-async function copySql() {
-  try {
-    await copyToClipboard(syncSql.value);
-    toast(t("grid.copied"));
-  } catch (e: any) {
-    toast(t("grid.copyFailed", { message: e?.message || String(e) }), 5000);
+const isMaximized = ref(false);
+
+// Config step: always use default size 1100x820
+// Result step: use saved size if exists
+const dialogStyle = computed(() => {
+  if (isMaximized.value) {
+    return {
+      width: "100vw",
+      height: "100vh",
+      maxWidth: "100vw",
+      maxHeight: "100vh",
+      borderRadius: "0",
+    };
   }
-}
-
-function diffBadgeVariant(type: string) {
-  if (type === "added") return "default";
-  if (type === "removed") return "destructive";
-  return "secondary";
-}
-
-function diffLabel(type: string) {
-  if (type === "added") return t("diff.added");
-  if (type === "removed") return t("diff.removed");
-  return t("diff.modified");
-}
-
-function resetResult() {
-  step.value = "select";
-  diffs.value = [];
-  syncSql.value = "";
-  syncErrors.value = [];
-  executedCount.value = 0;
-  executeTotal.value = 0;
-}
-
-watch(sourceConnectionId, (id) => {
-  sourceDatabase.value = "";
-  loadDatabases(id, "source");
-  resetResult();
+  if (step.value === "result") {
+    return {
+      width: savedSize?.width || "1100px",
+      height: savedSize?.height || "820px",
+      maxWidth: "calc(100vw - 2rem)",
+      maxHeight: "calc(100vh - 2rem)",
+    };
+  }
+  return {
+    width: "1100px",
+    height: "820px",
+    maxWidth: "calc(100vw - 2rem)",
+    maxHeight: "calc(100vh - 2rem)",
+  };
 });
 
-watch(targetConnectionId, (id) => {
-  targetDatabase.value = "";
-  loadDatabases(id, "target");
-  resetResult();
-});
+function toggleMaximize() {
+  isMaximized.value = !isMaximized.value;
+}
 
-watch(sourceDatabase, (database) => {
-  sourceSchema.value = "";
-  sourceSchemas.value = [];
-  resetResult();
-  if (database) loadSchemas("source", props.prefillSchema).catch((e) => toast(String(e), 5000));
-});
-watch(targetDatabase, (database) => {
-  targetSchema.value = "";
-  targetSchemas.value = [];
-  resetResult();
-  if (database) loadSchemas("target").catch((e) => toast(String(e), 5000));
-});
-watch(sourceSchema, () => resetResult());
-watch(targetSchema, () => resetResult());
-watch(ignoreComments, () => resetResult());
+let resizeObserver: ResizeObserver | null = null;
+let saveTimeout: number | null = null;
 
+function setupResizeObserver() {
+  const el = document.querySelector('[data-slot="dialog-content"]') as HTMLElement;
+  if (!el) return;
+
+  resizeObserver = new ResizeObserver((entries) => {
+    for (const entry of entries) {
+      const { width, height } = entry.contentRect;
+      if (saveTimeout) clearTimeout(saveTimeout);
+      saveTimeout = window.setTimeout(() => {
+        localStorage.setItem(
+          DIALOG_SIZE_KEY,
+          JSON.stringify({
+            width: `${width}px`,
+            height: `${height}px`,
+          }),
+        );
+      }, 500);
+    }
+  });
+
+  resizeObserver.observe(el);
+}
+
+function teardownResizeObserver() {
+  if (saveTimeout) clearTimeout(saveTimeout);
+  resizeObserver?.disconnect();
+  resizeObserver = null;
+}
+
+// Only enable resize observer in result step
 watch(
-  open,
-  async (val) => {
-    if (val) {
-      step.value = "select";
-      diffs.value = [];
-      syncErrors.value = [];
-      executedCount.value = 0;
-      executeTotal.value = 0;
+  () => step.value,
+  (newStep) => {
+    if (newStep === "result") {
+      setTimeout(setupResizeObserver, 100);
+    } else {
+      teardownResizeObserver();
+    }
+  },
+);
+
+onBeforeUnmount(() => {
+  teardownResizeObserver();
+});
+
+// Config management
+const { configs, activeConfigId, activeConfig, recentConfigs, ensureDefaultConfig, updateActiveConfigConnection, updateActiveConfigOptions, saveToHistory, deleteFromHistory } = useSchemaDiffConfig();
+
+const selectedObject = computed(() => {
+  if (!selectedObjectId.value) return null;
+  for (const group of diffGroups.value) {
+    for (const typeGroup of group.typeGroups) {
+      const obj = typeGroup.objects.find((o) => o.id === selectedObjectId.value);
+      if (obj) return obj;
+    }
+  }
+  return null;
+});
+
+const canDeploy = computed(() => {
+  return diffObjects.value.some((o) => o.selected && o.operationType !== "none");
+});
+
+// Watch for prefilled values
+watch(
+  () => open.value,
+  (isOpen) => {
+    if (isOpen) {
+      ensureDefaultConfig();
       if (props.prefillConnectionId) {
         sourceConnectionId.value = props.prefillConnectionId;
-        await loadDatabases(props.prefillConnectionId, "source");
         if (props.prefillDatabase) {
           sourceDatabase.value = props.prefillDatabase;
-          await loadSchemas("source", props.prefillSchema);
+        }
+        if (props.prefillSchema) {
+          sourceSchema.value = props.prefillSchema;
         }
       }
     }
   },
   { immediate: true },
 );
+
+// Config sync
+watch([sourceConnectionId, sourceDatabase, sourceSchema, targetConnectionId, targetDatabase, targetSchema], ([srcConn, srcDb, srcSchema, tgtConn, tgtDb, tgtSchema]) => {
+  updateActiveConfigConnection({
+    sourceConnectionId: srcConn,
+    sourceDatabase: srcDb,
+    sourceSchema: srcSchema,
+    targetConnectionId: tgtConn,
+    targetDatabase: tgtDb,
+    targetSchema: tgtSchema,
+  });
+});
+
+// Auto-fetch target database version when connection/database changes
+watch(
+  () => [targetConnectionId.value, targetDatabase.value],
+  async ([connId, db]) => {
+    if (connId && db) {
+      await fetchDbVersion(connId, db, targetSchema.value);
+    } else {
+      targetDbVersion.value = null;
+    }
+  },
+);
+
+function getDbType(): string {
+  const targetConfig = store.getConfig(targetConnectionId.value);
+  return targetConfig?.db_type || "postgres";
+}
+
+function handleSwap() {
+  const tempConn = sourceConnectionId.value;
+  const tempDb = sourceDatabase.value;
+  const tempSchema = sourceSchema.value;
+  sourceConnectionId.value = targetConnectionId.value;
+  sourceDatabase.value = targetDatabase.value;
+  sourceSchema.value = targetSchema.value;
+  targetConnectionId.value = tempConn;
+  targetDatabase.value = tempDb;
+  targetSchema.value = tempSchema;
+}
+
+function handleOptionsUpdate(options: SchemaDiffCompareOptions) {
+  if (activeConfig.value) {
+    updateActiveConfigOptions(options);
+  }
+}
+
+async function handleCompare() {
+  loading.value = true;
+  step.value = "compare";
+
+  try {
+    await store.ensureConnected(sourceConnectionId.value);
+    await store.ensureConnected(targetConnectionId.value);
+
+    const [srcTables, tgtTables] = await Promise.all([api.listTables(sourceConnectionId.value, sourceDatabase.value, sourceSchema.value), api.listTables(targetConnectionId.value, targetDatabase.value, targetSchema.value)]);
+
+    // Load schema details in parallel
+    const sourceDetails = await Promise.all(
+      srcTables.map(async (table) => {
+        const [columns, indexes, foreignKeys, triggers, ddl] = await Promise.all([
+          api.getColumns(sourceConnectionId.value, sourceDatabase.value, sourceSchema.value, table.name),
+          api.listIndexes(sourceConnectionId.value, sourceDatabase.value, sourceSchema.value, table.name),
+          api.listForeignKeys(sourceConnectionId.value, sourceDatabase.value, sourceSchema.value, table.name),
+          api.listTriggers(sourceConnectionId.value, sourceDatabase.value, sourceSchema.value, table.name),
+          api.getTableDdl(sourceConnectionId.value, sourceDatabase.value, sourceSchema.value, table.name),
+        ]);
+        return { name: table.name, columns, indexes, foreignKeys, triggers, ddl };
+      }),
+    );
+
+    const targetDetails = await Promise.all(
+      tgtTables.map(async (table) => {
+        const [columns, indexes, foreignKeys, triggers, ddl] = await Promise.all([
+          api.getColumns(targetConnectionId.value, targetDatabase.value, targetSchema.value, table.name),
+          api.listIndexes(targetConnectionId.value, targetDatabase.value, targetSchema.value, table.name),
+          api.listForeignKeys(targetConnectionId.value, targetDatabase.value, targetSchema.value, table.name),
+          api.listTriggers(targetConnectionId.value, targetDatabase.value, targetSchema.value, table.name),
+          api.getTableDdl(targetConnectionId.value, targetDatabase.value, targetSchema.value, table.name),
+        ]);
+        return { name: table.name, columns, indexes, foreignKeys, triggers, ddl };
+      }),
+    );
+
+    const targetConfig = store.getConfig(targetConnectionId.value);
+    const dbType = targetConfig?.db_type || "mysql";
+    const isPostgresLike = dbType === "postgres" || dbType === "opengauss";
+    const opts = activeConfig.value?.options;
+
+    // Fetch new object types for PostgreSQL-like databases
+    const promises: Promise<any>[] = [];
+    if (isPostgresLike && opts?.functions) {
+      promises.push(api.listFunctions(sourceConnectionId.value, sourceDatabase.value, sourceSchema.value));
+      promises.push(api.listFunctions(targetConnectionId.value, targetDatabase.value, targetSchema.value));
+    }
+    if (isPostgresLike && opts?.sequences) {
+      promises.push(api.listSequences(sourceConnectionId.value, sourceDatabase.value, sourceSchema.value, !!opts?.sequenceLastValues));
+      promises.push(api.listSequences(targetConnectionId.value, targetDatabase.value, targetSchema.value, !!opts?.sequenceLastValues));
+    }
+    if (isPostgresLike && opts?.rules) {
+      promises.push(api.listRules(sourceConnectionId.value, sourceDatabase.value, sourceSchema.value));
+      promises.push(api.listRules(targetConnectionId.value, targetDatabase.value, targetSchema.value));
+    }
+    if (isPostgresLike && opts?.owners) {
+      promises.push(api.listOwners(sourceConnectionId.value, sourceDatabase.value, sourceSchema.value));
+      promises.push(api.listOwners(targetConnectionId.value, targetDatabase.value, targetSchema.value));
+    }
+
+    const results = await Promise.all(promises);
+    let idx = 0;
+    const srcFunctions = opts?.functions && isPostgresLike ? results[idx++] : [];
+    const tgtFunctions = opts?.functions && isPostgresLike ? results[idx++] : [];
+    const srcSequences = opts?.sequences && isPostgresLike ? results[idx++] : [];
+    const tgtSequences = opts?.sequences && isPostgresLike ? results[idx++] : [];
+    const srcRules = opts?.rules && isPostgresLike ? results[idx++] : [];
+    const tgtRules = opts?.rules && isPostgresLike ? results[idx++] : [];
+    const srcOwners = opts?.owners && isPostgresLike ? results[idx++] : [];
+    const tgtOwners = opts?.owners && isPostgresLike ? results[idx++] : [];
+
+    const result = await api.prepareSchemaDiff({
+      sourceTables: srcTables,
+      targetTables: tgtTables,
+      sourceDetails,
+      targetDetails,
+      sourceFunctions: srcFunctions,
+      targetFunctions: tgtFunctions,
+      sourceSequences: srcSequences,
+      targetSequences: tgtSequences,
+      sourceRules: srcRules,
+      targetRules: tgtRules,
+      sourceOwners: srcOwners,
+      targetOwners: tgtOwners,
+      databaseType: dbType,
+      targetSchema: targetSchema.value,
+      ignoreComments: ignoreComments.value,
+      cascadeDelete: opts?.cascadeDelete ?? false,
+    });
+
+    // Convert to unified objects
+    diffObjects.value = convertToSchemaDiffObjects(result.diffs, result.functionDiffs, result.sequenceDiffs, result.ruleDiffs, result.ownerDiffs);
+
+    // Group by operation type and object kind
+    diffGroups.value = groupDiffObjects(diffObjects.value);
+
+    // Save full result and generate deploy SQL
+    lastDiffResult.value = result;
+    deploySqlAll.value = result.syncSql;
+    regenerateDeploySql();
+
+    step.value = "result";
+  } catch (e: any) {
+    toast(e?.message || String(e), 5000);
+    step.value = "config";
+  } finally {
+    loading.value = false;
+  }
+}
+
+function handleToggleGroup(operationType: DiffOperationType) {
+  diffGroups.value = diffGroups.value.map((g) => (g.operationType === operationType ? { ...g, expanded: !g.expanded } : g));
+}
+
+function handleToggleTypeGroup(operationType: DiffOperationType, kind: DiffObjectKind) {
+  diffGroups.value = diffGroups.value.map((g) => {
+    if (g.operationType !== operationType) return g;
+    return {
+      ...g,
+      typeGroups: g.typeGroups.map((tg) => (tg.kind === kind ? { ...tg, expanded: !tg.expanded } : tg)),
+    };
+  });
+}
+
+function handleToggleGroupSelection(operationType: DiffOperationType, selected: boolean) {
+  diffGroups.value = diffGroups.value.map((g) => {
+    if (g.operationType !== operationType) return g;
+    return {
+      ...g,
+      selectedCount: selected ? g.count : 0,
+      typeGroups: g.typeGroups.map((tg) => {
+        for (const obj of tg.objects) {
+          obj.selected = selected;
+        }
+        return { ...tg, selectedCount: selected ? tg.objects.length : 0 };
+      }),
+    };
+  });
+  regenerateDeploySql();
+}
+
+function handleToggleTypeSelection(operationType: DiffOperationType, kind: DiffObjectKind, selected: boolean) {
+  diffGroups.value = diffGroups.value.map((g) => {
+    if (g.operationType !== operationType) return g;
+    const newTypeGroups = g.typeGroups.map((tg) => {
+      if (tg.kind !== kind) return tg;
+      for (const obj of tg.objects) {
+        obj.selected = selected;
+      }
+      return { ...tg, selectedCount: selected ? tg.objects.length : 0 };
+    });
+    const newSelectedCount = newTypeGroups.reduce((sum, tg) => sum + tg.selectedCount, 0);
+    return { ...g, selectedCount: newSelectedCount, typeGroups: newTypeGroups };
+  });
+  regenerateDeploySql();
+}
+
+function handleToggleObjectSelection(objectId: string, selected: boolean) {
+  const obj = diffObjects.value.find((o) => o.id === objectId);
+  if (!obj) return;
+
+  obj.selected = selected;
+
+  // Update diffGroups with new references to trigger reactivity
+  diffGroups.value = diffGroups.value.map((g) => {
+    if (g.operationType !== obj.operationType) return g;
+    const newTypeGroups = g.typeGroups.map((tg) => {
+      if (tg.kind !== obj.objectKind) return tg;
+      const newSelectedCount = tg.objects.filter((o) => o.selected).length;
+      return { ...tg, selectedCount: newSelectedCount };
+    });
+    const newSelectedCount = newTypeGroups.reduce((sum, tg) => sum + tg.selectedCount, 0);
+    return { ...g, selectedCount: newSelectedCount, typeGroups: newTypeGroups };
+  });
+
+  regenerateDeploySql();
+}
+
+function regenerateDeploySql() {
+  // Only select top-level objects (exclude children)
+  const selected = diffObjects.value.filter((o) => {
+    const isTopLevel = !o.id.startsWith("col-") && !o.id.startsWith("idx-") && !o.id.startsWith("fk-") && !o.id.startsWith("trg-");
+    return o.selected && o.operationType !== "none" && isTopLevel;
+  });
+
+  if (selected.length === 0) {
+    deploySql.value = "-- No objects selected";
+    return;
+  }
+
+  const lines: string[] = [];
+
+  for (const obj of selected) {
+    if (obj.operationType === "create") {
+      if (obj.sourceDdl) {
+        lines.push(`-- Create ${obj.objectKind}: ${obj.name}`);
+        lines.push(obj.sourceDdl);
+        lines.push("");
+      }
+    } else if (obj.operationType === "delete") {
+      lines.push(`-- Drop ${obj.objectKind}: ${obj.name}`);
+      const dropSql = generateDropSql(obj);
+      lines.push(dropSql);
+      lines.push("");
+    } else if (obj.operationType === "modify") {
+      if (obj.sourceDdl) {
+        lines.push(`-- Modify ${obj.objectKind}: ${obj.name}`);
+        lines.push(obj.sourceDdl);
+        lines.push("");
+      }
+    }
+  }
+
+  deploySql.value = lines.join("\n") || "-- No DDL available for selected objects";
+}
+
+function generateDropSql(obj: SchemaDiffObject): string {
+  const typeMap: Record<string, string> = {
+    table: "TABLE",
+    view: "VIEW",
+    function: "FUNCTION",
+    sequence: "SEQUENCE",
+    rule: "RULE",
+    owner: "OWNED BY",
+  };
+  const sqlType = typeMap[obj.objectKind] || obj.objectKind.toUpperCase();
+  return `DROP ${sqlType} IF EXISTS ${obj.name};`;
+}
+
+async function handleExecuteScript() {
+  if (!deploySql.value || deploySql.value.startsWith("-- ")) {
+    toast(t("diff.noObjectsSelected"), 3000);
+    return;
+  }
+
+  executing.value = true;
+  try {
+    await api.executeScript(targetConnectionId.value, targetDatabase.value, deploySql.value, targetSchema.value);
+    toast(t("diff.executeSuccess"), 3000);
+  } catch (e: any) {
+    toast(e?.message || String(e), 5000);
+  } finally {
+    executing.value = false;
+  }
+}
+async function handleSelectObject(obj: SchemaDiffObject) {
+  selectedObjectId.value = obj.id;
+
+  // Dynamically fetch DDL for objects that don't have pre-generated DDL
+  // (views need runtime retrieval; functions should already have definition)
+  const objectTypeMap: Record<string, ObjectSourceKind> = {
+    function: "FUNCTION",
+    view: "VIEW",
+  };
+  const objectType = objectTypeMap[obj.objectKind];
+  if (!objectType) return;
+
+  try {
+    // For "create" objects: source has it, target doesn't → fetch source DDL
+    if (obj.operationType === "create" && !obj.sourceDdl) {
+      const result = await api.getObjectSource(sourceConnectionId.value, sourceDatabase.value, sourceSchema.value, obj.name, objectType);
+      if (result?.source) obj.sourceDdl = result.source;
+    }
+
+    // For "delete" objects: target has it, source doesn't → fetch target DDL
+    if (obj.operationType === "delete" && !obj.targetDdl) {
+      const result = await api.getObjectSource(targetConnectionId.value, targetDatabase.value, targetSchema.value, obj.name, objectType);
+      if (result?.source) obj.targetDdl = result.source;
+    }
+
+    // For "modify" objects: fetch whichever side is missing
+    if (obj.operationType === "modify") {
+      if (!obj.sourceDdl) {
+        const result = await api.getObjectSource(sourceConnectionId.value, sourceDatabase.value, sourceSchema.value, obj.name, objectType);
+        if (result?.source) obj.sourceDdl = result.source;
+      }
+      if (!obj.targetDdl) {
+        const result = await api.getObjectSource(targetConnectionId.value, targetDatabase.value, targetSchema.value, obj.name, objectType);
+        if (result?.source) obj.targetDdl = result.source;
+      }
+    }
+  } catch {
+    // Silently ignore errors
+  }
+}
+function handleLoadHistoryConfig(config: SchemaDiffConfig) {
+  sourceConnectionId.value = config.sourceConnectionId;
+  sourceDatabase.value = config.sourceDatabase;
+  sourceSchema.value = config.sourceSchema;
+  targetConnectionId.value = config.targetConnectionId;
+  targetDatabase.value = config.targetDatabase;
+  targetSchema.value = config.targetSchema;
+  if (config.options) {
+    updateActiveConfigOptions(config.options);
+  }
+}
+
+function handleSaveConfig() {
+  if (activeConfig.value) {
+    const name = window.prompt(t("diff.saveConfigPrompt") || "Please enter config name:", activeConfig.value.name || "Default");
+    if (name === null) return; // User cancelled
+    const configToSave = { ...activeConfig.value, name: name.trim() || "Default" };
+    saveToHistory(configToSave);
+    toast(t("diff.configSaved"), 2000);
+  }
+}
+
+function handleDeleteHistoryConfig(configId: string) {
+  deleteFromHistory(configId);
+  toast(t("diff.configDeleted"), 2000);
+}
+
+async function fetchDbVersion(connectionId: string, database: string, schema: string) {
+  try {
+    await store.ensureConnected(connectionId);
+    const config = store.getConfig(connectionId);
+    const dbType = config?.db_type;
+    let sql = "";
+    switch (dbType) {
+      case "postgres":
+      case "opengauss":
+        sql = "SELECT version()";
+        break;
+      case "mysql":
+        sql = "SELECT VERSION()";
+        break;
+      case "sqlite":
+        sql = "SELECT sqlite_version()";
+        break;
+      default:
+        return;
+    }
+    const result = await api.executeQuery(connectionId, database, sql, schema || undefined);
+    if (result.rows && result.rows.length > 0) {
+      targetDbVersion.value = String(result.rows[0][0]);
+    } else {
+      console.warn("[fetchDbVersion] No rows returned");
+    }
+  } catch (e) {
+    console.error("[fetchDbVersion] Failed to fetch version:", e);
+    targetDbVersion.value = null;
+  }
+}
+
+function handleDeployReview() {
+  const selectedObjects = diffObjects.value.filter((o) => o.selected && o.operationType !== "none");
+  if (selectedObjects.length === 0) {
+    toast(t("diff.noObjectsSelected"), 3000);
+    return;
+  }
+  step.value = "deploy-review";
+  fetchDbVersion(targetConnectionId.value, targetDatabase.value, targetSchema.value);
+}
+
+async function handleDeploy() {
+  showConfirmDialog.value = true;
+}
+
+async function onConfirmDeploy() {
+  showConfirmDialog.value = false;
+  executing.value = true;
+  try {
+    const result = await api.executeScript(targetConnectionId.value, targetDatabase.value, deploySql.value, targetSchema.value);
+    deployResult.value = {
+      success: true,
+      message: t("diff.deploySuccess"),
+      affectedRows: result.affected_rows,
+    };
+    showResultDialog.value = true;
+  } catch (e: any) {
+    deployResult.value = {
+      success: false,
+      message: e?.message || String(e),
+    };
+    showResultDialog.value = true;
+  } finally {
+    executing.value = false;
+  }
+}
+
+const deployStats = computed(() => {
+  const selected = diffObjects.value.filter((o) => o.selected && o.operationType !== "none");
+  const isTopLevel = (o: SchemaDiffObject) => !o.id.startsWith("col-") && !o.id.startsWith("idx-") && !o.id.startsWith("fk-") && !o.id.startsWith("trg-");
+  const topLevel = selected.filter(isTopLevel);
+  return {
+    create: topLevel.filter((o) => o.operationType === "create").length,
+    modify: topLevel.filter((o) => o.operationType === "modify").length,
+    delete: topLevel.filter((o) => o.operationType === "delete").length,
+    total: topLevel.length,
+  };
+});
+
+const targetConnectionInfo = computed(() => {
+  const config = store.getConfig(targetConnectionId.value);
+  if (!config) return null;
+  return {
+    host: config.host || "-",
+    port: config.port || "-",
+    dbType: config.db_type || "-",
+  };
+});
 </script>
 
 <template>
   <Dialog v-model:open="open">
-    <DialogContent class="min-w-[min(720px,calc(100vw-2rem))] resize-x sm:max-w-5xl max-h-[80vh] flex flex-col overflow-hidden" @interact-outside.prevent>
+    <DialogContent :class="['min-w-[800px] flex flex-col overflow-hidden', isMaximized ? '' : 'resize']" :style="dialogStyle" @interact-outside.prevent>
+      <Button variant="ghost" size="icon-sm" class="absolute top-2 right-10 z-10" @click="toggleMaximize">
+        <Maximize2 v-if="!isMaximized" class="w-4 h-4" />
+        <Minimize2 v-else class="w-4 h-4" />
+        <span class="sr-only">{{ isMaximized ? t("diff.restore") : t("diff.maximize") }}</span>
+      </Button>
+
       <DialogHeader>
         <DialogTitle class="flex items-center gap-2">
           <GitCompareArrows class="w-4 h-4" />
@@ -369,247 +683,195 @@ watch(
         </DialogTitle>
       </DialogHeader>
 
-      <div class="flex-1 min-h-0 overflow-auto space-y-4 py-2">
-        <!-- Source / Target Selection -->
-        <div class="grid grid-cols-[1fr_auto_1fr] gap-4 items-start">
-          <div class="space-y-2">
-            <Label class="text-xs font-medium">{{ t("diff.source") }}</Label>
-            <Select :model-value="sourceConnectionId" @update:model-value="(v: any) => (sourceConnectionId = String(v))">
-              <SelectTrigger class="h-8 text-xs">
-                <div class="flex items-center gap-2">
-                  <DatabaseIcon v-if="sourceConnectionId" :db-type="connectionIconType(sourceConnectionId)" class="w-3.5 h-3.5" />
-                  <SelectValue :placeholder="t('diff.selectConnection')" />
-                </div>
-              </SelectTrigger>
-              <SelectContent>
-                <SelectItem v-for="c in sqlConnections" :key="c.id" :value="c.id">
-                  <div class="flex items-center gap-2">
-                    <DatabaseIcon :db-type="c.driver_profile || c.db_type" class="w-3.5 h-3.5" />
-                    {{ c.name }}
-                  </div>
-                </SelectItem>
-              </SelectContent>
-            </Select>
-            <Select v-if="sourceDatabases.length" :model-value="sourceDatabase" @update:model-value="(v: any) => (sourceDatabase = String(v))">
-              <SelectTrigger class="h-8 text-xs">
-                <SelectValue :placeholder="t('diff.selectDatabase')" />
-              </SelectTrigger>
-              <SelectContent>
-                <SelectItem v-for="db in sourceDatabases" :key="db" :value="db">{{ db }}</SelectItem>
-              </SelectContent>
-            </Select>
-            <Select v-if="sourceSchemas.length" :model-value="sourceSchema" @update:model-value="(v: any) => (sourceSchema = String(v))">
-              <SelectTrigger class="h-8 text-xs">
-                <SelectValue :placeholder="t('diff.selectSchema')" />
-              </SelectTrigger>
-              <SelectContent>
-                <SelectItem v-for="schema in sourceSchemas" :key="schema" :value="schema">{{ schema }}</SelectItem>
-              </SelectContent>
-            </Select>
-          </div>
+      <div class="flex-1 min-h-0 overflow-hidden flex flex-col">
+        <!-- Config Step -->
+        <SchemaDiffConfigStep
+          v-if="step === 'config'"
+          v-model:source-connection-id="sourceConnectionId"
+          v-model:source-database="sourceDatabase"
+          v-model:source-schema="sourceSchema"
+          v-model:target-connection-id="targetConnectionId"
+          v-model:target-database="targetDatabase"
+          v-model:target-schema="targetSchema"
+          v-model:ignore-comments="ignoreComments"
+          :configs="configs"
+          :active-config-id="activeConfigId"
+          :options="activeConfig?.options"
+          :loading="loading"
+          :recent-configs="recentConfigs"
+          @compare="handleCompare"
+          @swap="handleSwap"
+          @show-options="showOptionsPanel = true"
+          @save-config="handleSaveConfig"
+          @load-history-config="handleLoadHistoryConfig"
+          @delete-history-config="handleDeleteHistoryConfig"
+        />
 
-          <div class="flex items-center pt-6">
-            <Button variant="ghost" size="icon" class="h-7 w-7" :title="t('diff.swap')" @click="swapSourceTarget">
-              <ArrowLeftRight class="w-3.5 h-3.5" />
-            </Button>
-          </div>
-
-          <div class="space-y-2">
-            <Label class="text-xs font-medium">{{ t("diff.target") }}</Label>
-            <Select :model-value="targetConnectionId" @update:model-value="(v: any) => (targetConnectionId = String(v))">
-              <SelectTrigger class="h-8 text-xs">
-                <div class="flex items-center gap-2">
-                  <DatabaseIcon v-if="targetConnectionId" :db-type="connectionIconType(targetConnectionId)" class="w-3.5 h-3.5" />
-                  <SelectValue :placeholder="t('diff.selectConnection')" />
-                </div>
-              </SelectTrigger>
-              <SelectContent>
-                <SelectItem v-for="c in sqlConnections" :key="c.id" :value="c.id">
-                  <div class="flex items-center gap-2">
-                    <DatabaseIcon :db-type="c.driver_profile || c.db_type" class="w-3.5 h-3.5" />
-                    {{ c.name }}
-                  </div>
-                </SelectItem>
-              </SelectContent>
-            </Select>
-            <Select v-if="targetDatabases.length" :model-value="targetDatabase" @update:model-value="(v: any) => (targetDatabase = String(v))">
-              <SelectTrigger class="h-8 text-xs">
-                <SelectValue :placeholder="t('diff.selectDatabase')" />
-              </SelectTrigger>
-              <SelectContent>
-                <SelectItem v-for="db in targetDatabases" :key="db" :value="db">{{ db }}</SelectItem>
-              </SelectContent>
-            </Select>
-            <Select v-if="targetSchemas.length" :model-value="targetSchema" @update:model-value="(v: any) => (targetSchema = String(v))">
-              <SelectTrigger class="h-8 text-xs">
-                <SelectValue :placeholder="t('diff.selectSchema')" />
-              </SelectTrigger>
-              <SelectContent>
-                <SelectItem v-for="schema in targetSchemas" :key="schema" :value="schema">{{ schema }}</SelectItem>
-              </SelectContent>
-            </Select>
-          </div>
+        <!-- Compare Loading -->
+        <div v-else-if="step === 'compare'" class="flex items-center justify-center py-20">
+          <Loader2 class="w-6 h-6 animate-spin mr-2" />
+          <span class="text-sm text-muted-foreground">{{ t("diff.comparing") }}</span>
         </div>
 
-        <div class="flex items-center gap-2 rounded-md border bg-muted/20 px-3 py-2">
-          <input id="schema-diff-ignore-comments" v-model="ignoreComments" type="checkbox" class="accent-primary" />
-          <Label for="schema-diff-ignore-comments" class="cursor-pointer text-xs">
-            {{ t("diff.ignoreComments") }}
-          </Label>
-        </div>
-
-        <!-- Comparing -->
-        <div v-if="step === 'comparing'" class="flex items-center justify-center py-8 text-sm text-muted-foreground">
-          <Loader2 class="w-4 h-4 animate-spin mr-2" />
-          {{ t("diff.comparing") }}
-        </div>
-
-        <!-- Results -->
-        <template v-if="step === 'result'">
-          <div v-if="diffs.length === 0" class="py-6 text-center text-sm text-muted-foreground">
-            {{ t("diff.noDifferences") }}
-          </div>
-
-          <template v-else>
-            <!-- Diff Table -->
-            <div class="border rounded-lg overflow-hidden">
-              <div class="max-h-60 overflow-auto">
-                <table class="w-full text-xs table-fixed">
-                  <thead class="bg-muted sticky top-0 z-10">
-                    <tr>
-                      <th class="px-2 py-2 w-8">
-                        <input type="checkbox" class="accent-primary" :checked="allSelected" :indeterminate="someSelected" @change="toggleAll" />
-                      </th>
-                      <th class="text-left px-3 py-2 font-medium w-1/4">{{ t("diff.table") }}</th>
-                      <th class="text-left px-3 py-2 font-medium w-16">{{ t("diff.status") }}</th>
-                      <th class="text-left px-3 py-2 font-medium">{{ t("diff.details") }}</th>
-                    </tr>
-                  </thead>
-                  <tbody>
-                    <tr v-for="d in diffs" :key="d.name" class="border-t border-border/50 hover:bg-accent/30">
-                      <td class="px-2 py-1.5">
-                        <input v-model="d.selected" type="checkbox" class="accent-primary" @change="onDiffSelectionChange" />
-                      </td>
-                      <td class="px-3 py-1.5 font-mono truncate">{{ d.name }}</td>
-                      <td class="px-3 py-1.5">
-                        <Badge :variant="diffBadgeVariant(d.type)" class="text-[10px] h-4 px-1.5">
-                          {{ diffLabel(d.type) }}
-                        </Badge>
-                      </td>
-                      <td class="px-3 py-1.5 text-muted-foreground">
-                        <template v-if="d.type === 'modified' && d.columns">
-                          <span v-for="(col, ci) in d.columns" :key="`col-${ci}`">
-                            <span
-                              :class="{
-                                'text-green-500': col.type === 'added',
-                                'text-red-500': col.type === 'removed',
-                                'text-yellow-500': col.type === 'modified',
-                              }"
-                              >{{ col.type === "added" ? "+" : col.type === "removed" ? "-" : "~" }}{{ col.name }}</span
-                            >
-                            <span v-if="ci < d.columns!.length - 1">, </span>
-                          </span>
-                        </template>
-                        <template v-if="d.type === 'modified' && d.indexes">
-                          <span v-if="d.columns?.length">; </span>
-                          <span>{{ t("diff.indexes") }}: </span>
-                          <span v-for="(idx, ii) in d.indexes" :key="`idx-${ii}`">
-                            <span
-                              :class="{
-                                'text-green-500': idx.type === 'added',
-                                'text-red-500': idx.type === 'removed',
-                                'text-yellow-500': idx.type === 'modified',
-                              }"
-                              >{{ idx.type === "added" ? "+" : idx.type === "removed" ? "-" : "~" }}{{ idx.name }}</span
-                            >
-                            <span v-if="ii < d.indexes!.length - 1">, </span>
-                          </span>
-                        </template>
-                        <template v-if="d.type === 'modified' && d.foreignKeys">
-                          <span v-if="d.columns?.length || d.indexes?.length">; </span>
-                          <span>{{ t("diff.foreignKeys") }}: </span>
-                          <span v-for="(fk, fi) in d.foreignKeys" :key="`fk-${fi}`">
-                            <span
-                              :class="{
-                                'text-green-500': fk.type === 'added',
-                                'text-red-500': fk.type === 'removed',
-                                'text-yellow-500': fk.type === 'modified',
-                              }"
-                              >{{ fk.type === "added" ? "+" : fk.type === "removed" ? "-" : "~" }}{{ fk.name }}</span
-                            >
-                            <span v-if="fi < d.foreignKeys!.length - 1">, </span>
-                          </span>
-                        </template>
-                        <template v-if="d.type === 'modified' && d.triggers">
-                          <span v-if="d.columns?.length || d.indexes?.length || d.foreignKeys?.length">; </span>
-                          <span>{{ t("diff.triggers") }}: </span>
-                          <span v-for="(trigger, ti) in d.triggers" :key="`trigger-${ti}`">
-                            <span
-                              :class="{
-                                'text-green-500': trigger.type === 'added',
-                                'text-red-500': trigger.type === 'removed',
-                                'text-yellow-500': trigger.type === 'modified',
-                              }"
-                              >{{ trigger.type === "added" ? "+" : trigger.type === "removed" ? "-" : "~" }}{{ trigger.name }}</span
-                            >
-                            <span v-if="ti < d.triggers!.length - 1">, </span>
-                          </span>
-                        </template>
-                        <template v-if="d.type === 'modified' && d.sourceTableComment !== undefined">
-                          <span v-if="d.columns?.length || d.indexes?.length || d.foreignKeys?.length || d.triggers?.length">; </span>
-                          <span>{{ t("diff.comments") }}</span>
-                        </template>
-                        <span v-else-if="d.type === 'added'" class="text-green-500">{{ t("diff.newTable") }}</span>
-                        <span v-else-if="d.type === 'removed'" class="text-red-500">{{ t("diff.dropTable") }}</span>
-                      </td>
-                    </tr>
-                  </tbody>
-                </table>
+        <!-- Result Step -->
+        <template v-else-if="step === 'result'">
+          <Splitpanes horizontal class="flex-1 min-h-0" @resized="handleSplitpanesResized">
+            <Pane :size="splitpanesSize" min-size="20">
+              <div class="h-full overflow-auto">
+                <SchemaDiffObjectTree
+                  :groups="diffGroups"
+                  :selected-object-id="selectedObject?.id ?? null"
+                  @toggle-group="handleToggleGroup"
+                  @toggle-type-group="handleToggleTypeGroup"
+                  @toggle-group-selection="handleToggleGroupSelection"
+                  @toggle-type-selection="handleToggleTypeSelection"
+                  @toggle-object-selection="handleToggleObjectSelection"
+                  @select-object="handleSelectObject"
+                />
               </div>
-            </div>
+            </Pane>
+            <Pane :size="100 - splitpanesSize" min-size="20">
+              <SchemaDiffDdlPanel :selected-object="selectedObject" :deploy-sql="deploySql" :deploy-sql-all="deploySqlAll" @execute-script="handleExecuteScript" />
+            </Pane>
+          </Splitpanes>
+        </template>
 
-            <!-- SQL Preview -->
-            <div class="space-y-1">
-              <Label class="text-xs font-medium">{{ t("diff.generatedSql") }}</Label>
-              <pre class="w-full h-48 overflow-auto rounded-lg border bg-muted/20 p-3 font-mono text-xs whitespace-pre" v-html="highlightedSyncSql"></pre>
-            </div>
-
-            <!-- Sync Errors -->
-            <div v-if="syncErrors.length > 0" class="space-y-1">
-              <Label class="text-xs font-medium text-destructive">
-                {{ t("diff.syncSummary", { success: executeTotal - syncErrors.length, failed: syncErrors.length }) }}
-              </Label>
-              <div class="max-h-32 overflow-auto border rounded-lg bg-destructive/5 p-2 space-y-1">
-                <div v-for="(err, i) in syncErrors" :key="i" class="text-xs font-mono">
-                  <span class="text-destructive">{{ err.error }}</span>
-                  <span class="text-muted-foreground ml-1">— {{ err.sql.slice(0, 80) }}{{ err.sql.length > 80 ? "..." : "" }}</span>
-                </div>
-              </div>
-            </div>
-          </template>
+        <!-- Deploy Review Step -->
+        <template v-else-if="step === 'deploy-review'">
+          <SchemaDiffDeployStep v-model:deploy-sql="deploySql" :selected-objects="diffObjects" :target-connection-id="targetConnectionId" :target-database="targetDatabase" :target-schema="targetSchema" :executing="executing" @back="step = 'result'" @deploy="handleDeploy" />
         </template>
       </div>
 
-      <DialogFooter v-if="!(step === 'result' && diffs.length > 0)" class="flex items-center gap-2">
-        <Button variant="outline" @click="open = false">{{ t("common.close") }}</Button>
-        <Button v-if="step === 'select'" size="sm" :disabled="!canCompare || loadingMeta" @click="startCompare">
-          <Loader2 v-if="loadingMeta" class="w-3.5 h-3.5 mr-1 animate-spin" />
-          <GitCompareArrows v-else class="w-3.5 h-3.5 mr-1" />
-          {{ loadingMeta ? t("common.loading") : t("diff.compare") }}
-        </Button>
+      <!-- Footer -->
+      <DialogFooter class="flex items-center justify-between">
+        <div v-if="step === 'result'" class="flex items-center gap-2">
+          <Button variant="outline" size="sm" @click="step = 'config'">
+            <ArrowLeft class="w-3.5 h-3.5 mr-1" />
+            {{ t("diff.prevStep") }}
+          </Button>
+          <Button variant="outline" size="sm" :disabled="loading" @click="handleCompare">
+            <GitCompareArrows class="w-3.5 h-3.5 mr-1" />
+            {{ t("diff.recompare") }}
+          </Button>
+        </div>
+        <div v-else></div>
+
+        <div v-if="step === 'result'" class="flex items-center gap-2">
+          <Button size="sm" :disabled="!canDeploy || executing" @click="handleDeployReview">
+            <Loader2 v-if="executing" class="w-3.5 h-3.5 mr-1 animate-spin" />
+            <Play v-else class="w-3.5 h-3.5 mr-1" />
+            {{ t("diff.nextStepDeploy") }}
+          </Button>
+        </div>
       </DialogFooter>
 
-      <DialogFooter v-if="step === 'result' && diffs.length > 0" class="flex items-center gap-2">
-        <span v-if="executing" class="text-xs text-muted-foreground mr-auto">
-          {{ t("diff.syncProgress", { current: executedCount, total: executeTotal }) }}
-        </span>
-        <Button variant="outline" size="sm" @click="copySql"> <Copy class="w-3 h-3 mr-1" /> {{ t("diff.copySql") }} </Button>
-        <Button size="sm" :disabled="!syncSql.trim() || executing" @click="executeSql">
-          <Loader2 v-if="executing" class="w-3 h-3 animate-spin mr-1" />
-          <Play v-else class="w-3 h-3 mr-1" />
-          {{ t("diff.executeSync") }}
-        </Button>
-      </DialogFooter>
+      <!-- Deploy Confirm Dialog -->
+      <Dialog v-model:open="showConfirmDialog">
+        <DialogContent class="sm:max-w-[520px]">
+          <DialogHeader>
+            <DialogTitle class="flex items-center gap-2 text-destructive">
+              <AlertTriangle class="h-5 w-5" />
+              {{ t("diff.deployConfirmTitle") }}
+            </DialogTitle>
+          </DialogHeader>
+
+          <div class="py-2 space-y-3">
+            <p class="text-sm text-muted-foreground">{{ t("diff.deployConfirmMessage") }}</p>
+
+            <div class="bg-muted p-3 rounded text-xs font-mono space-y-1">
+              <div v-if="targetConnectionInfo">
+                {{ t("diff.targetServer") }}: {{ targetConnectionInfo.host }}:{{ targetConnectionInfo.port }}
+                <span class="text-muted-foreground">({{ targetConnectionInfo.dbType }})</span>
+              </div>
+              <div v-if="targetDbVersion">{{ t("diff.dbVersion") }}: {{ targetDbVersion }}</div>
+              <div>
+                {{ t("diff.targetDatabase") }}:
+                <span class="text-primary font-bold">{{ targetDatabase }}</span>
+              </div>
+              <div>
+                {{ t("diff.targetSchema") }}:
+                <span class="text-primary font-bold">{{ targetSchema || "-" }}</span>
+              </div>
+            </div>
+
+            <div class="flex gap-4 text-sm">
+              <span class="text-green-600">{{ t("diff.create") }}: {{ deployStats.create }}</span>
+              <span class="text-blue-600">{{ t("diff.modify") }}: {{ deployStats.modify }}</span>
+              <span class="text-red-600">{{ t("diff.delete") }}: {{ deployStats.delete }}</span>
+            </div>
+          </div>
+
+          <DialogFooter>
+            <Button variant="outline" @click="showConfirmDialog = false">{{ t("diff.cancel") }}</Button>
+            <Button variant="destructive" :disabled="executing" @click="onConfirmDeploy">
+              <Loader2 v-if="executing" class="w-3.5 h-3.5 mr-1 animate-spin" />
+              {{ t("diff.confirmDeploy") }}
+            </Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
+
+      <!-- Deploy Result Dialog -->
+      <Dialog v-model:open="showResultDialog">
+        <DialogContent class="sm:max-w-[480px]">
+          <DialogHeader>
+            <DialogTitle class="flex items-center gap-2" :class="deployResult?.success ? 'text-green-500' : 'text-destructive'">
+              <AlertTriangle v-if="!deployResult?.success" class="h-5 w-5" />
+              <CircleCheck v-else class="h-5 w-5" />
+              {{ deployResult?.success ? t("diff.deploySuccess") : t("diff.deployFailed") }}
+            </DialogTitle>
+          </DialogHeader>
+
+          <div class="py-2">
+            <div v-if="deployResult?.success" class="space-y-2">
+              <p class="text-sm text-muted-foreground">{{ t("diff.deploySuccessMessage") }}</p>
+              <div class="bg-muted p-3 rounded text-xs font-mono">
+                <div>{{ t("diff.affectedRows") }}: {{ deployResult.affectedRows ?? 0 }}</div>
+                <div>{{ t("diff.executedStatements") }}: {{ deployStats.total }}</div>
+              </div>
+            </div>
+            <div v-else class="space-y-2">
+              <p class="text-sm text-muted-foreground">{{ t("diff.deployFailedMessage") }}</p>
+              <pre class="text-xs bg-destructive/10 text-destructive p-3 rounded overflow-auto max-h-40 font-mono whitespace-pre-wrap">{{ deployResult?.message }}</pre>
+            </div>
+          </div>
+
+          <DialogFooter>
+            <Button variant="outline" @click="showResultDialog = false">{{ t("diff.close") }}</Button>
+            <Button
+              v-if="deployResult?.success"
+              @click="
+                showResultDialog = false;
+                step = 'result';
+              "
+            >
+              {{ t("diff.backToResult") }}
+            </Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
+
+      <!-- Options Panel Overlay -->
+      <div v-if="showOptionsPanel" class="absolute inset-0 bg-background/80 backdrop-blur-sm z-50 flex items-center justify-center" @click.self="showOptionsPanel = false">
+        <div class="bg-card border rounded-lg shadow-lg w-[500px] max-h-[80vh] overflow-auto p-4">
+          <div class="flex items-center justify-between mb-4">
+            <h3 class="text-sm font-medium">{{ t("schemaDiff.optionsTitle") }}</h3>
+            <Button variant="ghost" size="sm" @click="showOptionsPanel = false">✕</Button>
+          </div>
+          <SchemaDiffOptionsPanel :options="activeConfig?.options ?? getDefaultOptionsForDbType(getDbType())" :option-tree="optionTree" @update:options="handleOptionsUpdate" @close="showOptionsPanel = false" />
+        </div>
+      </div>
     </DialogContent>
   </Dialog>
 </template>
+
+<style scoped>
+:deep(.splitpanes--horizontal > .splitpanes__splitter) {
+  height: 8px;
+  background: hsl(var(--border));
+  cursor: row-resize;
+}
+:deep(.splitpanes--horizontal > .splitpanes__splitter:hover) {
+  background: hsl(var(--primary));
+}
+</style>
diff --git a/apps/desktop/src/components/diff/SchemaDiffObjectTree.vue b/apps/desktop/src/components/diff/SchemaDiffObjectTree.vue
new file mode 100644
index 000000000..83458b06b
--- /dev/null
+++ b/apps/desktop/src/components/diff/SchemaDiffObjectTree.vue
@@ -0,0 +1,245 @@
+<script setup lang="ts">
+import { useI18n } from "vue-i18n";
+import type { SchemaDiffObject, DiffOperationType, DiffObjectKind } from "@/lib/schemaDiff";
+import { Table, Eye, FunctionSquare, ListOrdered, ScrollText, UserCog, ListTree, Link2, Zap, ChevronDown, ChevronRight, ArrowRightLeft, PlusCircle, XCircle, MinusCircle } from "@lucide/vue";
+
+const { t } = useI18n();
+
+interface ObjectTypeGroup {
+  kind: DiffObjectKind;
+  label: string;
+  objects: SchemaDiffObject[];
+  expanded: boolean;
+}
+
+interface OperationGroup {
+  operationType: DiffOperationType;
+  label: string;
+  count: number;
+  selectedCount: number;
+  expanded: boolean;
+  typeGroups: ObjectTypeGroup[];
+}
+
+const props = defineProps<{
+  groups: OperationGroup[];
+  selectedObjectId?: string | null;
+}>();
+
+const emit = defineEmits<{
+  (e: "toggleGroup", operationType: DiffOperationType): void;
+  (e: "toggleTypeGroup", operationType: DiffOperationType, kind: DiffObjectKind): void;
+  (e: "toggleGroupSelection", operationType: DiffOperationType, selected: boolean): void;
+  (e: "toggleTypeSelection", operationType: DiffOperationType, kind: DiffObjectKind, selected: boolean): void;
+  (e: "toggleObjectSelection", objectId: string, selected: boolean): void;
+  (e: "selectObject", object: SchemaDiffObject): void;
+}>();
+
+const operationIcons: Record<DiffOperationType, any> = {
+  modify: ArrowRightLeft,
+  create: PlusCircle,
+  delete: XCircle,
+  none: MinusCircle,
+};
+
+const operationColors: Record<DiffOperationType, string> = {
+  modify: "text-blue-500",
+  create: "text-green-500",
+  delete: "text-red-500",
+  none: "text-muted-foreground",
+};
+
+const operationBgColors: Record<DiffOperationType, string> = {
+  modify: "bg-blue-500/10 border-blue-500/20",
+  create: "bg-green-500/10 border-green-500/20",
+  delete: "bg-red-500/10 border-red-500/20",
+  none: "bg-muted/30 border-muted",
+};
+
+function getObjectIcon(kind: DiffObjectKind) {
+  switch (kind) {
+    case "table":
+      return Table;
+    case "view":
+      return Eye;
+    case "function":
+      return FunctionSquare;
+    case "sequence":
+      return ListOrdered;
+    case "rule":
+      return ScrollText;
+    case "owner":
+      return UserCog;
+    case "index":
+      return ListTree;
+    case "foreignKey":
+      return Link2;
+    case "trigger":
+      return Zap;
+    default:
+      return Table;
+  }
+}
+
+function getObjectIconColor(kind: DiffObjectKind): string {
+  switch (kind) {
+    case "table":
+      return "text-amber-500";
+    case "view":
+      return "text-cyan-500";
+    case "function":
+      return "text-purple-500";
+    case "sequence":
+      return "text-orange-500";
+    case "rule":
+      return "text-pink-500";
+    case "owner":
+      return "text-indigo-500";
+    case "index":
+      return "text-teal-500";
+    case "foreignKey":
+      return "text-lime-500";
+    case "trigger":
+      return "text-rose-500";
+    default:
+      return "text-muted-foreground";
+  }
+}
+
+function getObjectTypeLabel(kind: DiffObjectKind): string {
+  switch (kind) {
+    case "table":
+      return "diff.objectKindLabel.table";
+    case "view":
+      return "diff.objectKindLabel.view";
+    case "function":
+      return "diff.objectKindLabel.function";
+    case "sequence":
+      return "diff.objectKindLabel.sequence";
+    case "rule":
+      return "diff.objectKindLabel.rule";
+    case "owner":
+      return "diff.objectKindLabel.owner";
+    case "index":
+      return "diff.objectKindLabel.index";
+    case "foreignKey":
+      return "diff.objectKindLabel.foreignKey";
+    case "trigger":
+      return "diff.objectKindLabel.trigger";
+    default:
+      return kind;
+  }
+}
+
+function isGroupFullySelected(group: OperationGroup): boolean {
+  return group.count > 0 && group.selectedCount === group.count;
+}
+
+function isGroupPartiallySelected(group: OperationGroup): boolean {
+  return group.selectedCount > 0 && group.selectedCount < group.count;
+}
+
+function isTypeGroupFullySelected(typeGroup: ObjectTypeGroup): boolean {
+  return typeGroup.objects.length > 0 && typeGroup.objects.every((o) => o.selected);
+}
+
+function isTypeGroupPartiallySelected(typeGroup: ObjectTypeGroup): boolean {
+  const selectedCount = typeGroup.objects.filter((o) => o.selected).length;
+  return selectedCount > 0 && selectedCount < typeGroup.objects.length;
+}
+
+function onGroupCheckboxChange(group: OperationGroup, event: Event) {
+  const checked = (event.target as HTMLInputElement).checked;
+  emit("toggleGroupSelection", group.operationType, checked);
+}
+
+function onTypeCheckboxChange(group: OperationGroup, typeGroup: ObjectTypeGroup, event: Event) {
+  const checked = (event.target as HTMLInputElement).checked;
+  emit("toggleTypeSelection", group.operationType, typeGroup.kind, checked);
+}
+
+function onObjectCheckboxChange(obj: SchemaDiffObject, event: Event) {
+  const checked = (event.target as HTMLInputElement).checked;
+  emit("toggleObjectSelection", obj.id, checked);
+}
+
+function formatObjectName(obj: SchemaDiffObject): string {
+  if (obj.objectKind === "function" && obj.arguments) {
+    return `${obj.name}(${obj.arguments})`;
+  }
+  return obj.name;
+}
+</script>
+
+<template>
+  <div class="space-y-1">
+    <!-- Header -->
+    <div class="grid grid-cols-[1fr_60px_1fr] gap-2 px-2 py-1.5 text-xs font-medium text-muted-foreground border-b">
+      <div class="text-center">{{ t("diff.sourceObject") }}</div>
+      <div class="text-center">{{ t("diff.operation") }}</div>
+      <div class="text-center">{{ t("diff.targetObject") }}</div>
+    </div>
+
+    <!-- Operation Groups -->
+    <div v-for="group in groups" :key="group.operationType" class="border rounded-md overflow-hidden">
+      <!-- Operation Group Header -->
+      <button class="flex items-center gap-2 w-full px-3 py-2 text-sm font-medium transition-colors" :class="operationBgColors[group.operationType]" @click="$emit('toggleGroup', group.operationType)">
+        <ChevronDown v-if="group.expanded" class="w-4 h-4 shrink-0" />
+        <ChevronRight v-else class="w-4 h-4 shrink-0" />
+
+        <input type="checkbox" class="accent-primary shrink-0" :checked="isGroupFullySelected(group)" :indeterminate="isGroupPartiallySelected(group)" @click.stop @change="onGroupCheckboxChange(group, $event)" />
+
+        <component :is="operationIcons[group.operationType]" class="w-4 h-4 shrink-0" :class="operationColors[group.operationType]" />
+        <span :class="operationColors[group.operationType]">{{ t(group.label) }}</span>
+        <span class="text-xs text-muted-foreground ml-1"> ({{ t("diff.selectedCount", { selected: group.selectedCount, total: group.count }) }}) </span>
+      </button>
+
+      <!-- Type Groups -->
+      <div v-if="group.expanded" class="divide-y divide-border/30">
+        <div v-for="typeGroup in group.typeGroups" :key="typeGroup.kind" class="border-l-2 border-l-border/50 ml-2">
+          <!-- Type Group Header -->
+          <button class="flex items-center gap-2 w-full px-3 py-1.5 text-xs font-medium hover:bg-accent/20 transition-colors" @click="$emit('toggleTypeGroup', group.operationType, typeGroup.kind)">
+            <ChevronDown v-if="typeGroup.expanded" class="w-3.5 h-3.5 shrink-0" />
+            <ChevronRight v-else class="w-3.5 h-3.5 shrink-0" />
+
+            <input type="checkbox" class="accent-primary shrink-0" :checked="isTypeGroupFullySelected(typeGroup)" :indeterminate="isTypeGroupPartiallySelected(typeGroup)" @click.stop @change="onTypeCheckboxChange(group, typeGroup, $event)" />
+
+            <component :is="getObjectIcon(typeGroup.kind)" class="w-3.5 h-3.5 shrink-0" :class="getObjectIconColor(typeGroup.kind)" />
+            <span>{{ t(getObjectTypeLabel(typeGroup.kind)) }}</span>
+            <span class="text-xs text-muted-foreground">({{ typeGroup.objects.length }})</span>
+          </button>
+
+          <!-- Objects -->
+          <div v-if="typeGroup.expanded" class="divide-y divide-border/20">
+            <div v-for="obj in typeGroup.objects" :key="obj.id" class="grid grid-cols-[1fr_60px_1fr] gap-2 px-3 py-1 items-center hover:bg-accent/30 cursor-pointer ml-8" :class="{ 'bg-primary/10': selectedObjectId === obj.id }" @click="$emit('selectObject', obj)">
+              <!-- Source (hide for delete objects) -->
+              <div v-if="obj.operationType !== 'delete'" class="flex items-center gap-2 min-w-0">
+                <input type="checkbox" class="accent-primary shrink-0" :checked="obj.selected" @click.stop @change="onObjectCheckboxChange(obj, $event)" />
+                <component :is="getObjectIcon(obj.objectKind)" class="w-3.5 h-3.5 shrink-0" :class="getObjectIconColor(obj.objectKind)" />
+                <span class="text-xs truncate" :class="obj.operationType === 'create' ? 'text-green-500' : ''">
+                  {{ obj.sourceName ? (obj.objectKind === "function" && obj.arguments ? `${obj.sourceName}(${obj.arguments})` : obj.sourceName) : formatObjectName(obj) }}
+                </span>
+              </div>
+              <div v-else></div>
+
+              <!-- Operation -->
+              <div class="flex justify-center">
+                <component :is="operationIcons[obj.operationType]" class="w-3.5 h-3.5" :class="operationColors[obj.operationType]" />
+              </div>
+
+              <!-- Target (hide for create objects) -->
+              <div v-if="obj.operationType !== 'create'" class="flex items-center gap-2 min-w-0">
+                <input v-if="obj.operationType === 'delete'" type="checkbox" class="accent-primary shrink-0" :checked="obj.selected" @click.stop @change="onObjectCheckboxChange(obj, $event)" />
+                <component :is="getObjectIcon(obj.objectKind)" class="w-3.5 h-3.5 shrink-0" :class="getObjectIconColor(obj.objectKind)" />
+                <span class="text-xs truncate" :class="obj.operationType === 'delete' ? 'text-red-500 line-through' : ''">
+                  {{ obj.targetName ? (obj.objectKind === "function" && obj.arguments ? `${obj.targetName}(${obj.arguments})` : obj.targetName) : formatObjectName(obj) }}
+                </span>
+              </div>
+              <div v-else></div>
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
diff --git a/apps/desktop/src/components/diff/SchemaDiffOptionsPanel.vue b/apps/desktop/src/components/diff/SchemaDiffOptionsPanel.vue
new file mode 100644
index 000000000..299b38ae6
--- /dev/null
+++ b/apps/desktop/src/components/diff/SchemaDiffOptionsPanel.vue
@@ -0,0 +1,124 @@
+<script setup lang="ts">
+import { ref, watch } from "vue";
+import { useI18n } from "vue-i18n";
+import { Button } from "@/components/ui/button";
+import type { SchemaDiffCompareOptions, SchemaDiffOptionItem } from "@/types/schemaDiff";
+
+const props = defineProps<{
+  options: SchemaDiffCompareOptions;
+  optionTree: SchemaDiffOptionItem[];
+}>();
+
+const emit = defineEmits<{
+  (e: "update:options", options: SchemaDiffCompareOptions): void;
+  (e: "close"): void;
+}>();
+
+const { t } = useI18n();
+
+// Local copy of options
+const localOptions = ref<SchemaDiffCompareOptions>({ ...props.options });
+
+// Watch for external changes
+watch(
+  () => props.options,
+  (newOptions) => {
+    localOptions.value = { ...newOptions };
+  },
+  { deep: true },
+);
+
+function isChecked(id: keyof SchemaDiffCompareOptions): boolean {
+  return !!localOptions.value[id];
+}
+
+function setOption(id: keyof SchemaDiffCompareOptions, checked: boolean) {
+  localOptions.value = { ...localOptions.value, [id]: checked };
+}
+
+function getChildState(item: SchemaDiffOptionItem): "checked" | "unchecked" | "indeterminate" {
+  if (!item.children || item.children.length === 0) {
+    return isChecked(item.id) ? "checked" : "unchecked";
+  }
+  const childStates = item.children.map((child) => getChildState(child));
+  if (childStates.every((s) => s === "checked")) return "checked";
+  if (childStates.every((s) => s === "unchecked")) return "unchecked";
+  return "indeterminate";
+}
+
+function toggleItem(item: SchemaDiffOptionItem) {
+  const state = getChildState(item);
+  const nextChecked = state !== "checked";
+  setSubtree(item, nextChecked);
+}
+
+function setSubtree(item: SchemaDiffOptionItem, checked: boolean) {
+  setOption(item.id, checked);
+  if (item.children) {
+    for (const child of item.children) {
+      setSubtree(child, checked);
+    }
+  }
+}
+
+function handleDone() {
+  emit("update:options", { ...localOptions.value });
+  emit("close");
+}
+
+function handleCancel() {
+  emit("close");
+}
+
+function getItemClasses(state: "checked" | "unchecked" | "indeterminate"): string {
+  const base = "h-4 w-4 rounded border flex items-center justify-center transition-colors cursor-pointer";
+  if (state === "checked") {
+    return `${base} bg-primary border-primary text-primary-foreground`;
+  }
+  if (state === "indeterminate") {
+    return `${base} bg-primary border-primary text-primary-foreground`;
+  }
+  return `${base} bg-background border-input hover:border-muted-foreground`;
+}
+</script>
+
+<template>
+  <div class="flex flex-col h-full">
+    <div class="flex-1 overflow-auto space-y-1">
+      <template v-for="item in optionTree" :key="item.id">
+        <div class="space-y-1">
+          <div class="flex items-center gap-2 py-1 px-2 rounded hover:bg-muted/50 cursor-pointer" @click="toggleItem(item)">
+            <div :class="getItemClasses(getChildState(item))">
+              <svg v-if="getChildState(item) === 'checked'" class="h-3 w-3" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="4">
+                <polyline points="20 6 9 17 4 12" />
+              </svg>
+              <svg v-else-if="getChildState(item) === 'indeterminate'" class="h-3 w-3" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="4">
+                <line x1="5" y1="12" x2="19" y2="12" />
+              </svg>
+            </div>
+            <span class="text-sm select-none">{{ t(item.labelKey) }}</span>
+          </div>
+          <div v-if="item.children" class="ml-6 space-y-1">
+            <div v-for="child in item.children" :key="child.id" class="flex items-center gap-2 py-1 px-2 rounded hover:bg-muted/50 cursor-pointer" @click="toggleItem(child)">
+              <div :class="getItemClasses(getChildState(child))">
+                <svg v-if="getChildState(child) === 'checked'" class="h-3 w-3" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="4">
+                  <polyline points="20 6 9 17 4 12" />
+                </svg>
+              </div>
+              <span class="text-sm select-none">{{ t(child.labelKey) }}</span>
+            </div>
+          </div>
+        </div>
+      </template>
+    </div>
+
+    <div class="flex items-center justify-end gap-2 pt-4 border-t mt-2">
+      <Button variant="outline" size="sm" @click="handleCancel">
+        {{ t("common.cancel") }}
+      </Button>
+      <Button size="sm" @click="handleDone">
+        {{ t("common.done") }}
+      </Button>
+    </div>
+  </div>
+</template>
diff --git a/apps/desktop/src/components/editor/ThemeCustomizerDialog.vue b/apps/desktop/src/components/editor/ThemeCustomizerDialog.vue
index bdaa4903e..20e86d08d 100644
--- a/apps/desktop/src/components/editor/ThemeCustomizerDialog.vue
+++ b/apps/desktop/src/components/editor/ThemeCustomizerDialog.vue
@@ -5,7 +5,7 @@ import { Button } from "@/components/ui/button";
 import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
 import { Input } from "@/components/ui/input";
 import type { CustomTheme, CustomThemeColors } from "@/stores/settingsStore";
-import { DEFAULT_CUSTOM_THEME_COLORS } from "@/stores/settingsStore";
+import { DEFAULT_CUSTOM_THEME_COLORS, DEFAULT_CUSTOM_THEME_DDL_COLORS } from "@/stores/settingsStore";
 import { Plus, Trash2, Copy, Pencil, ChevronDown, Palette } from "@lucide/vue";
 import { useToast } from "@/composables/useToast";
 import { useI18n } from "vue-i18n";
@@ -367,6 +367,7 @@ function handleAddTheme() {
     id,
     name,
     colors: { ...DEFAULT_CUSTOM_THEME_COLORS },
+    ddlColors: { ...DEFAULT_CUSTOM_THEME_DDL_COLORS },
   });
   activeEditId.value = id;
 }
@@ -388,6 +389,7 @@ function handleDuplicateTheme(theme: CustomTheme) {
     id,
     name: `${theme.name}${t("settings.customThemeCopySuffix")}`,
     colors: { ...theme.colors },
+    ddlColors: { ...(theme.ddlColors ?? DEFAULT_CUSTOM_THEME_DDL_COLORS) },
   });
   activeEditId.value = id;
 }
diff --git a/apps/desktop/src/components/layout/AppToolbar.vue b/apps/desktop/src/components/layout/AppToolbar.vue
index adcc04f57..2c2f0378f 100644
--- a/apps/desktop/src/components/layout/AppToolbar.vue
+++ b/apps/desktop/src/components/layout/AppToolbar.vue
@@ -66,12 +66,13 @@ function onToolbarDblClick(e: MouseEvent) {
 
 const toolbarEl = ref<HTMLElement>();
 const toolbarCollapsed = ref(false);
-const COLLAPSE_THRESHOLD = 1000;
 
 function checkToolbarWidth() {
   const el = toolbarEl.value;
   if (!el) return;
-  toolbarCollapsed.value = el.clientWidth < COLLAPSE_THRESHOLD;
+  const screenWidth = window.visualViewport?.width ?? window.innerWidth;
+  const threshold = screenWidth / 2;
+  toolbarCollapsed.value = el.clientWidth < threshold;
 }
 
 let resizeObserver: ResizeObserver | null = null;
@@ -79,10 +80,12 @@ let resizeObserver: ResizeObserver | null = null;
 onMounted(() => {
   resizeObserver = new ResizeObserver(checkToolbarWidth);
   if (toolbarEl.value) resizeObserver.observe(toolbarEl.value);
+  window.addEventListener("resize", checkToolbarWidth);
 });
 
 onBeforeUnmount(() => {
   resizeObserver?.disconnect();
+  window.removeEventListener("resize", checkToolbarWidth);
 });
 
 const moreItems = computed(() => {
diff --git a/apps/desktop/src/composables/useDiffScrollSync.ts b/apps/desktop/src/composables/useDiffScrollSync.ts
new file mode 100644
index 000000000..48cc79e24
--- /dev/null
+++ b/apps/desktop/src/composables/useDiffScrollSync.ts
@@ -0,0 +1,52 @@
+import { ref, type Ref } from "vue";
+import type { DiffHunk } from "@/components/diff/DiffHunkBuilder";
+
+export interface UseDiffScrollSyncOptions {
+  container: Ref<HTMLElement | undefined>;
+  leftPane: Ref<HTMLElement | undefined>;
+  rightPane: Ref<HTMLElement | undefined>;
+  hunks: Ref<DiffHunk[]>;
+}
+
+export function useDiffScrollSync({ container, leftPane, rightPane, hunks }: UseDiffScrollSyncOptions) {
+  const isSyncingScroll = ref(false);
+
+  function syncScroll(from: "left" | "right") {
+    if (isSyncingScroll.value) return;
+    const source = from === "left" ? leftPane.value : rightPane.value;
+    const target = from === "left" ? rightPane.value : leftPane.value;
+    if (!source || !target) return;
+    isSyncingScroll.value = true;
+    target.scrollTop = source.scrollTop;
+    isSyncingScroll.value = false;
+  }
+
+  function measureHunks() {
+    const outer = container.value;
+    const left = leftPane.value;
+    const right = rightPane.value;
+    if (!outer || !left || !right) return;
+
+    const outerRect = outer.getBoundingClientRect();
+
+    for (const hunk of hunks.value) {
+      const leftEl = left.querySelector(`[data-hunk-id="${hunk.id}"]`) as HTMLElement | null;
+      const rightEl = right.querySelector(`[data-hunk-id="${hunk.id}"]`) as HTMLElement | null;
+      if (leftEl) {
+        const rect = leftEl.getBoundingClientRect();
+        hunk.leftTop = rect.top - outerRect.top;
+        hunk.leftBottom = rect.bottom - outerRect.top;
+      }
+      if (rightEl) {
+        const rect = rightEl.getBoundingClientRect();
+        hunk.rightTop = rect.top - outerRect.top;
+        hunk.rightBottom = rect.bottom - outerRect.top;
+      }
+    }
+  }
+
+  return {
+    syncScroll,
+    measureHunks,
+  };
+}
diff --git a/apps/desktop/src/composables/useSchemaDiffConfig.ts b/apps/desktop/src/composables/useSchemaDiffConfig.ts
new file mode 100644
index 000000000..2a84eee83
--- /dev/null
+++ b/apps/desktop/src/composables/useSchemaDiffConfig.ts
@@ -0,0 +1,252 @@
+import { ref, computed, watch } from "vue";
+import { uuid } from "@/lib/utils";
+import type { SchemaDiffConfig, SchemaDiffCompareOptions } from "@/types/schemaDiff";
+import { createEmptyConfig, getDefaultOptionsForDbType } from "@/types/schemaDiff";
+
+const STORAGE_KEY = "dbx-schema-diff-configs";
+const HISTORY_KEY = "dbx-schema-diff-history";
+const MAX_HISTORY = 10;
+
+const configs = ref<SchemaDiffConfig[]>(loadConfigsFromStorage());
+const activeConfigId = ref<string>("");
+const recentConfigs = ref<SchemaDiffConfig[]>(loadHistoryFromStorage());
+
+function loadConfigsFromStorage(): SchemaDiffConfig[] {
+  try {
+    const raw = localStorage.getItem(STORAGE_KEY);
+    if (!raw) return [];
+    const parsed = JSON.parse(raw) as SchemaDiffConfig[];
+    return Array.isArray(parsed) ? parsed : [];
+  } catch {
+    return [];
+  }
+}
+
+function loadHistoryFromStorage(): SchemaDiffConfig[] {
+  try {
+    const raw = localStorage.getItem(HISTORY_KEY);
+    if (!raw) return [];
+    const parsed = JSON.parse(raw) as SchemaDiffConfig[];
+    return Array.isArray(parsed) ? parsed : [];
+  } catch {
+    return [];
+  }
+}
+
+function saveConfigsToStorage() {
+  localStorage.setItem(STORAGE_KEY, JSON.stringify(configs.value));
+}
+
+function saveHistoryToStorage() {
+  localStorage.setItem(HISTORY_KEY, JSON.stringify(recentConfigs.value));
+}
+
+function createDefaultConfig(dbType?: string): SchemaDiffConfig {
+  const id = uuid();
+  const config = createEmptyConfig(id, "Default");
+  if (dbType) {
+    config.options = getDefaultOptionsForDbType(dbType);
+  }
+  return config;
+}
+
+export function useSchemaDiffConfig() {
+  const activeConfig = computed(() => configs.value.find((c) => c.id === activeConfigId.value) ?? configs.value[0] ?? null);
+
+  function ensureDefaultConfig(dbType?: string) {
+    if (configs.value.length === 0) {
+      const defaultConfig = createDefaultConfig(dbType);
+      configs.value.push(defaultConfig);
+      activeConfigId.value = defaultConfig.id;
+      saveConfigsToStorage();
+    } else if (!activeConfigId.value) {
+      activeConfigId.value = configs.value[0].id;
+    }
+  }
+
+  function createConfig(name: string, base?: SchemaDiffConfig, dbType?: string): SchemaDiffConfig {
+    const id = uuid();
+    const config = base ? { ...base, id, name, createdAt: Date.now(), updatedAt: Date.now() } : createEmptyConfig(id, name);
+    if (dbType && !base) {
+      config.options = getDefaultOptionsForDbType(dbType);
+    }
+    configs.value.push(config);
+    activeConfigId.value = id;
+    saveConfigsToStorage();
+    return config;
+  }
+
+  function updateConfig(id: string, updates: Partial<Omit<SchemaDiffConfig, "id" | "createdAt">>) {
+    const index = configs.value.findIndex((c) => c.id === id);
+    if (index === -1) return;
+    configs.value[index] = {
+      ...configs.value[index],
+      ...updates,
+      updatedAt: Date.now(),
+    };
+    saveConfigsToStorage();
+  }
+
+  function renameConfig(id: string, name: string) {
+    updateConfig(id, { name });
+  }
+
+  function deleteConfig(id: string) {
+    configs.value = configs.value.filter((c) => c.id !== id);
+    if (activeConfigId.value === id) {
+      activeConfigId.value = configs.value[0]?.id ?? "";
+    }
+    saveConfigsToStorage();
+  }
+
+  function duplicateConfig(id: string) {
+    const source = configs.value.find((c) => c.id === id);
+    if (!source) return;
+    let newName = `${source.name} (1)`;
+    let counter = 1;
+    while (configs.value.some((c) => c.name === newName)) {
+      counter++;
+      newName = `${source.name} (${counter})`;
+    }
+    createConfig(newName, source);
+  }
+
+  function exportConfigs(): string {
+    return JSON.stringify(configs.value, null, 2);
+  }
+
+  function exportActiveConfig(): string {
+    if (!activeConfig.value) return "";
+    return JSON.stringify(activeConfig.value, null, 2);
+  }
+
+  function importConfigs(
+    jsonText: string,
+    mode: "merge" | "replace" = "merge",
+  ): {
+    imported: number;
+    renamed: number;
+  } {
+    const parsed = JSON.parse(jsonText) as SchemaDiffConfig | SchemaDiffConfig[];
+    const items = Array.isArray(parsed) ? parsed : [parsed];
+    let renamed = 0;
+
+    if (mode === "replace") {
+      configs.value = [];
+    }
+
+    for (const item of items) {
+      let name = item.name;
+      if (configs.value.some((c) => c.name === name && c.id !== item.id)) {
+        let counter = 1;
+        let candidate = `${name} (${counter})`;
+        while (configs.value.some((c) => c.name === candidate)) {
+          counter++;
+          candidate = `${name} (${counter})`;
+        }
+        name = candidate;
+        renamed++;
+      }
+      const newId = uuid();
+      configs.value.push({
+        ...item,
+        id: newId,
+        name,
+        createdAt: Date.now(),
+        updatedAt: Date.now(),
+      });
+    }
+
+    saveConfigsToStorage();
+    if (!activeConfigId.value && configs.value.length > 0) {
+      activeConfigId.value = configs.value[0].id;
+    }
+
+    return { imported: items.length, renamed };
+  }
+
+  function updateActiveConfigOptions(options: SchemaDiffCompareOptions) {
+    if (!activeConfig.value) return;
+    updateConfig(activeConfig.value.id, { options: { ...options } });
+  }
+
+  function updateActiveConfigConnection(updates: Partial<SchemaDiffConfig>) {
+    if (!activeConfig.value) return;
+    const filtered: Partial<SchemaDiffConfig> = {};
+    if (updates.sourceConnectionId !== undefined) filtered.sourceConnectionId = updates.sourceConnectionId;
+    if (updates.sourceDatabase !== undefined) filtered.sourceDatabase = updates.sourceDatabase;
+    if (updates.sourceSchema !== undefined) filtered.sourceSchema = updates.sourceSchema;
+    if (updates.targetConnectionId !== undefined) filtered.targetConnectionId = updates.targetConnectionId;
+    if (updates.targetDatabase !== undefined) filtered.targetDatabase = updates.targetDatabase;
+    if (updates.targetSchema !== undefined) filtered.targetSchema = updates.targetSchema;
+    updateConfig(activeConfig.value.id, filtered);
+  }
+
+  function saveToHistory(config: SchemaDiffConfig) {
+    // Check if same config already exists (same connection/db/schema)
+    const existingIndex = recentConfigs.value.findIndex(
+      (c) => c.sourceConnectionId === config.sourceConnectionId && c.sourceDatabase === config.sourceDatabase && c.sourceSchema === config.sourceSchema && c.targetConnectionId === config.targetConnectionId && c.targetDatabase === config.targetDatabase && c.targetSchema === config.targetSchema,
+    );
+
+    if (existingIndex !== -1) {
+      // Update existing entry
+      recentConfigs.value[existingIndex] = {
+        ...config,
+        id: recentConfigs.value[existingIndex].id,
+        updatedAt: Date.now(),
+      };
+      // Move to front
+      const updated = recentConfigs.value.splice(existingIndex, 1)[0];
+      recentConfigs.value.unshift(updated);
+    } else {
+      // Add new entry
+      recentConfigs.value.unshift({
+        ...config,
+        id: uuid(),
+        createdAt: Date.now(),
+        updatedAt: Date.now(),
+      });
+    }
+
+    // Keep only MAX_HISTORY items
+    if (recentConfigs.value.length > MAX_HISTORY) {
+      recentConfigs.value = recentConfigs.value.slice(0, MAX_HISTORY);
+    }
+
+    saveHistoryToStorage();
+  }
+
+  function loadFromHistory(configId: string) {
+    const config = recentConfigs.value.find((c) => c.id === configId);
+    if (!config) return null;
+    return config;
+  }
+
+  function deleteFromHistory(configId: string) {
+    recentConfigs.value = recentConfigs.value.filter((c) => c.id !== configId);
+    saveHistoryToStorage();
+  }
+
+  watch(configs, saveConfigsToStorage, { deep: true });
+
+  return {
+    configs: computed(() => configs.value),
+    activeConfigId,
+    activeConfig,
+    recentConfigs: computed(() => recentConfigs.value),
+    ensureDefaultConfig,
+    createConfig,
+    updateConfig,
+    renameConfig,
+    deleteConfig,
+    duplicateConfig,
+    exportConfigs,
+    exportActiveConfig,
+    importConfigs,
+    updateActiveConfigOptions,
+    updateActiveConfigConnection,
+    saveToHistory,
+    loadFromHistory,
+    deleteFromHistory,
+  };
+}
diff --git a/apps/desktop/src/i18n/locales/en.ts b/apps/desktop/src/i18n/locales/en.ts
index 3cd3b3680..fb5995fa6 100644
--- a/apps/desktop/src/i18n/locales/en.ts
+++ b/apps/desktop/src/i18n/locales/en.ts
@@ -1679,12 +1679,17 @@
     },
   },
   diff: {
-    title: "Compare Databases",
+    title: "Compare Schemas",
     source: "Source",
     target: "Target",
     selectConnection: "Select connection",
     selectDatabase: "Select database",
     selectSchema: "Select schema",
+    connection: "Connection",
+    database: "Database",
+    schema: "Schema",
+    recentConfigs: "Recent Configs",
+    selectRecentConfig: "Select recent config",
     ignoreComments: "Ignore comment differences",
     compare: "Compare",
     comparing: "Comparing schemas...",
@@ -1708,6 +1713,92 @@
     swap: "Swap source and target",
     syncProgress: "Executing: {current}/{total}",
     syncSummary: "Succeeded {success}, failed {failed}",
+    configSaved: "Config saved",
+    selectObjectToCompare: "Select an object to view DDL comparison",
+    noDdlAvailable: "No DDL available",
+    sourceDdl: "Source DDL",
+    targetDdl: "Target DDL",
+    objectNotExistsInSource: "This object does not exist in the source database",
+    objectNotExistsInTarget: "This object does not exist in the target database",
+    nextStepDeploy: "Next (Review Deploy)",
+    deployReview: "Deploy Review",
+    backToResult: "Back to Result",
+    copyScript: "Copy Script",
+    exportSql: "Export .sql",
+    deployToServer: "Deploy to Server",
+    deployConfirmTitle: "Final Confirmation",
+    deployConfirmMessage: "You are about to deploy the following changes to the target database",
+    targetServer: "Target Server",
+    dbVersion: "Database Version",
+    targetDatabase: "Target Database",
+    targetSchema: "Target Schema",
+    useTransaction: "Execute in transaction (auto-rollback on failure)",
+    confirmDeploy: "Confirm Deploy",
+    exportSuccess: "Export successful",
+    create: "Create",
+    delete: "Delete",
+    modify: "Modify",
+    cancel: "Cancel",
+    operationLabel: {
+      modify: "Objects to modify",
+      create: "Objects to create",
+      delete: "Objects to delete",
+      none: "No operation",
+    },
+    objectKindLabel: {
+      table: "Table",
+      view: "View",
+      function: "Function",
+      sequence: "Sequence",
+      rule: "Rule",
+      owner: "Owner",
+      index: "Index",
+      foreignKey: "Foreign Key",
+      trigger: "Trigger",
+    },
+    noObjectsSelected: "Please select objects to deploy",
+    deploySuccess: "Deploy Successful",
+    deployFailed: "Deploy Failed",
+    deploySuccessMessage: "SQL script executed successfully on target database",
+    deployFailedMessage: "An error occurred during execution",
+    affectedRows: "Affected Rows",
+    executedStatements: "Executed Statements",
+    serverVersion: "Server Version",
+    close: "Close",
+  },
+  schemaDiff: {
+    optionsTitle: "Compare Options",
+    selectConfig: "Select config",
+    newConfigName: "New Config",
+    newConfig: "New Config",
+    renameConfig: "Rename Config",
+    duplicateConfig: "Duplicate Config",
+    deleteConfig: "Delete Config",
+    exportConfig: "Export Config",
+    exportAllConfigs: "Export All Configs",
+    importConfig: "Import Config",
+    importFromFile: "Import from File",
+    importFromText: "Import from Text",
+    importPlaceholder: "Paste JSON config...",
+    importInvalidJson: "Invalid JSON format",
+    configName: "Config Name",
+    options: {
+      tables: "Compare tables",
+      primaryKeys: "Compare primary keys",
+      foreignKeys: "Compare foreign keys",
+      uniqueKeys: "Compare unique keys",
+      checks: "Compare check constraints",
+      exclusions: "Compare exclusion constraints",
+      views: "Compare views",
+      functions: "Compare functions",
+      indexes: "Compare indexes",
+      sequences: "Compare sequences",
+      triggers: "Compare triggers",
+      rules: "Compare rules",
+      owners: "Compare owners",
+      cascadeDelete: "Use CASCADE delete",
+      sequenceLastValues: "Compare sequence last values",
+    },
   },
   dataCompare: {
     title: "Compare Data",
diff --git a/apps/desktop/src/i18n/locales/es.ts b/apps/desktop/src/i18n/locales/es.ts
index 7c13443da..e7fee7030 100644
--- a/apps/desktop/src/i18n/locales/es.ts
+++ b/apps/desktop/src/i18n/locales/es.ts
@@ -1438,7 +1438,7 @@
     },
   },
   diff: {
-    title: "Comparar bases de datos",
+    title: "Comparar esquemas",
     source: "Origen",
     target: "Destino",
     selectConnection: "Seleccionar conexión",
@@ -1467,6 +1467,57 @@
     swap: "Intercambiar origen y destino",
     syncProgress: "Ejecutando: {current}/{total}",
     syncSummary: "Exitosos {success}, fallidos {failed}",
+    operationLabel: {
+      modify: "Objetos a modificar",
+      create: "Objetos a crear",
+      delete: "Objetos a eliminar",
+      none: "Sin operación",
+    },
+    objectKindLabel: {
+      table: "Tabla",
+      view: "Vista",
+      function: "Función",
+      sequence: "Secuencia",
+      rule: "Regla",
+      owner: "Propietario",
+      index: "Índice",
+      foreignKey: "Clave foránea",
+      trigger: "Disparador",
+    },
+  },
+  schemaDiff: {
+    optionsTitle: "Opciones de comparación",
+    selectConfig: "Select config",
+    newConfigName: "New Config",
+    newConfig: "New Config",
+    renameConfig: "Rename Config",
+    duplicateConfig: "Duplicate Config",
+    deleteConfig: "Delete Config",
+    exportConfig: "Export Config",
+    exportAllConfigs: "Export All Configs",
+    importConfig: "Import Config",
+    importFromFile: "Import from File",
+    importFromText: "Import from Text",
+    importPlaceholder: "Paste JSON config...",
+    importInvalidJson: "Invalid JSON format",
+    configName: "Config Name",
+    options: {
+      tables: "Compare tables",
+      primaryKeys: "Compare primary keys",
+      foreignKeys: "Compare foreign keys",
+      uniqueKeys: "Compare unique keys",
+      checks: "Compare check constraints",
+      exclusions: "Compare exclusion constraints",
+      views: "Compare views",
+      functions: "Compare functions",
+      indexes: "Compare indexes",
+      sequences: "Compare sequences",
+      triggers: "Compare triggers",
+      rules: "Compare rules",
+      owners: "Compare owners",
+      cascadeDelete: "Use CASCADE delete",
+      sequenceLastValues: "Compare sequence last values",
+    },
   },
   dataCompare: {
     title: "Comparar datos",
diff --git a/apps/desktop/src/i18n/locales/it.ts b/apps/desktop/src/i18n/locales/it.ts
index cc3bbcb68..b54d9fd42 100644
--- a/apps/desktop/src/i18n/locales/it.ts
+++ b/apps/desktop/src/i18n/locales/it.ts
@@ -1555,7 +1555,7 @@
     },
   },
   diff: {
-    title: "Confronta Database",
+    title: "Confronta Schemi",
     source: "Sorgente",
     target: "Destinazione",
     selectConnection: "Seleziona connessione",
diff --git a/apps/desktop/src/i18n/locales/pt-BR.ts b/apps/desktop/src/i18n/locales/pt-BR.ts
index 4e600debc..eab8f1002 100644
--- a/apps/desktop/src/i18n/locales/pt-BR.ts
+++ b/apps/desktop/src/i18n/locales/pt-BR.ts
@@ -1566,7 +1566,7 @@
     },
   },
   diff: {
-    title: "Comparar Bancos de Dados",
+    title: "Comparar Esquemas",
     source: "Origem",
     target: "Destino",
     selectConnection: "Selecionar conexão",
diff --git a/apps/desktop/src/i18n/locales/zh-CN.ts b/apps/desktop/src/i18n/locales/zh-CN.ts
index 4803e162b..ee33e2938 100644
--- a/apps/desktop/src/i18n/locales/zh-CN.ts
+++ b/apps/desktop/src/i18n/locales/zh-CN.ts
@@ -1678,12 +1678,17 @@
     },
   },
   diff: {
-    title: "比较数据库",
+    title: "比较架构",
     source: "源数据库",
     target: "目标数据库",
     selectConnection: "选择连接",
     selectDatabase: "选择数据库",
     selectSchema: "选择 Schema",
+    connection: "连接",
+    database: "数据库",
+    schema: "模式",
+    recentConfigs: "最近配置",
+    selectRecentConfig: "选择最近配置",
     ignoreComments: "忽略注释差异",
     compare: "开始比较",
     comparing: "正在比较结构...",
@@ -1707,6 +1712,117 @@
     swap: "交换源和目标",
     syncProgress: "执行中: {current}/{total}",
     syncSummary: "成功 {success} 条，失败 {failed} 条",
+    sourceObject: "源对象",
+    targetObject: "目标对象",
+    operation: "操作",
+    selectedCount: "已选择 {selected} 个 (共 {total} 个)",
+    saveConfig: "保存配置",
+    loadConfig: "加载配置",
+    options: "选项",
+    ddlCompare: "DDL 比较",
+    deployScript: "部署脚本",
+    selectObjectToCompare: "选择对象查看 DDL 对比",
+    noDdlAvailable: "无可用的 DDL",
+    objectNotExistsInSource: "此对象在源库中不存在",
+    objectNotExistsInTarget: "此对象在目标库中不存在",
+    sourceDdl: "源 DDL",
+    targetDdl: "目标 DDL",
+    deployScriptTitle: "部署脚本",
+    deployScriptAll: "全部部署脚本",
+    deployScriptAllTitle: "全部部署脚本",
+    copyScript: "复制脚本",
+    executeScript: "执行脚本",
+    executeSuccess: "执行成功",
+    prevStep: "上一步",
+    recompare: "重新比较",
+    deploy: "下一步",
+    nextStepDeploy: "下一步（审核部署）",
+    deployReview: "部署审核",
+    backToResult: "返回结果",
+    exportSql: "导出 .sql",
+    deployToServer: "部署到服务器",
+    deployConfirmTitle: "最终确认",
+    deployConfirmMessage: "您即将在目标数据库执行以下部署操作",
+    targetServer: "目标服务器",
+    dbVersion: "数据库版本",
+    targetDatabase: "目标数据库",
+    targetSchema: "目标 Schema",
+    useTransaction: "在事务中执行（失败自动回滚）",
+    confirmDeploy: "确认部署",
+    exportSuccess: "导出成功",
+    create: "创建",
+    delete: "删除",
+    modify: "修改",
+    cancel: "取消",
+    operationLabel: {
+      modify: "要修改的对象",
+      create: "要创建的对象",
+      delete: "要删除的对象",
+      none: "无操作",
+    },
+    objectKindLabel: {
+      table: "表",
+      view: "视图",
+      function: "函数",
+      sequence: "序列",
+      rule: "规则",
+      owner: "所有者",
+      index: "索引",
+      foreignKey: "外键",
+      trigger: "触发器",
+    },
+    noObjectsSelected: "请选择要部署的对象",
+    deploySuccess: "部署成功",
+    deployFailed: "部署失败",
+    deploySuccessMessage: "SQL 脚本已成功执行到目标数据库",
+    deployFailedMessage: "执行过程中发生错误",
+    affectedRows: "影响行数",
+    executedStatements: "执行语句数",
+    close: "关闭",
+    info: "信息",
+    connType: "连接类型",
+    connName: "连接名称",
+    host: "主机",
+    port: "端口",
+    serverVersion: "服务器版本",
+    copied: "已复制到剪贴板",
+    configSaved: "配置已保存",
+    configDeleted: "配置已删除",
+    saveConfigPrompt: "请输入配置名称:",
+  },
+  schemaDiff: {
+    optionsTitle: "比较选项",
+    selectConfig: "选择配置",
+    newConfigName: "新配置",
+    newConfig: "新建配置",
+    renameConfig: "重命名配置",
+    duplicateConfig: "复制配置",
+    deleteConfig: "删除配置",
+    exportConfig: "导出配置",
+    exportAllConfigs: "导出全部配置",
+    importConfig: "导入配置",
+    importFromFile: "从文件导入",
+    importFromText: "从文本导入",
+    importPlaceholder: "粘贴 JSON 配置...",
+    importInvalidJson: "无效的 JSON 格式",
+    configName: "配置名称",
+    options: {
+      tables: "比较表",
+      primaryKeys: "比较主键",
+      foreignKeys: "比较外键",
+      uniqueKeys: "比较唯一键",
+      checks: "比较检查约束",
+      exclusions: "比较排除约束",
+      views: "比较视图",
+      functions: "比较函数",
+      indexes: "比较索引",
+      sequences: "比较序列",
+      triggers: "比较触发器",
+      rules: "比较规则",
+      owners: "比较所有者",
+      cascadeDelete: "使用级联删除",
+      sequenceLastValues: "比较序列最后值",
+    },
   },
   dataCompare: {
     title: "比较数据",
diff --git a/apps/desktop/src/i18n/locales/zh-TW.ts b/apps/desktop/src/i18n/locales/zh-TW.ts
index ff1d79d53..9b9f3b0f3 100644
--- a/apps/desktop/src/i18n/locales/zh-TW.ts
+++ b/apps/desktop/src/i18n/locales/zh-TW.ts
@@ -1543,7 +1543,7 @@
     },
   },
   diff: {
-    title: "比較資料庫",
+    title: "比較架構",
     source: "來源資料庫",
     target: "目標資料庫",
     selectConnection: "選擇連線",
@@ -1572,6 +1572,57 @@
     swap: "交換來源與目標",
     syncProgress: "執行中： {current}/{total}",
     syncSummary: "成功 {success} 條，失敗 {failed} 條",
+    operationLabel: {
+      modify: "要修改的物件",
+      create: "要建立的物件",
+      delete: "要刪除的物件",
+      none: "無操作",
+    },
+    objectKindLabel: {
+      table: "資料表",
+      view: "視圖",
+      function: "函數",
+      sequence: "序列",
+      rule: "規則",
+      owner: "擁有者",
+      index: "索引",
+      foreignKey: "外鍵",
+      trigger: "觸發器",
+    },
+  },
+  schemaDiff: {
+    optionsTitle: "比較選項",
+    selectConfig: "選擇配置",
+    newConfigName: "新配置",
+    newConfig: "新建配置",
+    renameConfig: "重新命名配置",
+    duplicateConfig: "複製配置",
+    deleteConfig: "刪除配置",
+    exportConfig: "匯出配置",
+    exportAllConfigs: "匯出全部配置",
+    importConfig: "匯入配置",
+    importFromFile: "從檔案匯入",
+    importFromText: "從文字匯入",
+    importPlaceholder: "貼上 JSON 配置...",
+    importInvalidJson: "無效的 JSON 格式",
+    configName: "配置名稱",
+    options: {
+      tables: "比較資料表",
+      primaryKeys: "比較主鍵",
+      foreignKeys: "比較外鍵",
+      uniqueKeys: "比較唯一鍵",
+      checks: "比較檢查約束",
+      exclusions: "比較排除約束",
+      views: "比較視圖",
+      functions: "比較函數",
+      indexes: "比較索引",
+      sequences: "比較序列",
+      triggers: "比較觸發器",
+      rules: "比較規則",
+      owners: "比較擁有者",
+      cascadeDelete: "使用級聯刪除",
+      sequenceLastValues: "比較序列最後值",
+    },
   },
   dataCompare: {
     title: "比較資料",
diff --git a/apps/desktop/src/lib/api.ts b/apps/desktop/src/lib/api.ts
index 59927ebbb..3b0066b9c 100644
--- a/apps/desktop/src/lib/api.ts
+++ b/apps/desktop/src/lib/api.ts
@@ -113,6 +113,10 @@ export const listIndexes = forward("listIndexes");
 export const listForeignKeys = forward("listForeignKeys");
 export const listTriggers = forward("listTriggers");
 export const getTableDdl = forward("getTableDdl");
+export const listFunctions = forward("listFunctions");
+export const listSequences = forward("listSequences");
+export const listRules = forward("listRules");
+export const listOwners = forward("listOwners");
 export const prepareSchemaDiff = forward("prepareSchemaDiff");
 export const generateSchemaSyncSql = forward("generateSchemaSyncSql");
 
diff --git a/apps/desktop/src/lib/http.ts b/apps/desktop/src/lib/http.ts
index 8d7363815..b91d73274 100644
--- a/apps/desktop/src/lib/http.ts
+++ b/apps/desktop/src/lib/http.ts
@@ -9,6 +9,10 @@ import type {
   IndexInfo,
   ForeignKeyInfo,
   TriggerInfo,
+  FunctionInfo,
+  SequenceInfo,
+  RuleInfo,
+  OwnerInfo,
   QueryResult,
   SqlReferenceAnalysis,
   DatabaseType,
@@ -21,6 +25,7 @@ import type {
   SavedSqlFolder,
   SavedSqlLibrary,
 } from "@/types/database";
+import type { SchemaDiffPreparation, SchemaDiffPreparationOptions, TableDiff, FunctionDiff, SequenceDiff, RuleDiff, OwnerDiff } from "@/lib/schemaDiff";
 import type { SidebarObjectKind } from "@/lib/databaseObjectCapabilities";
 import type { AiConfig } from "@/stores/settingsStore";
 import type {
@@ -84,7 +89,6 @@ import type { CreateDatabaseSqlOptions } from "@/lib/createDatabaseSql";
 import type { DatabaseNameSqlOptions, DropTableChildObjectSqlOptions, DropObjectSqlOptions, DuplicateTableStructureSqlOptions, SchemaNameSqlOptions, TableAdminSqlOptions } from "@/lib/dbAdminSql";
 import type { BuildDatabaseSqlExportOptions, BuildExportInsertStatementsOptions } from "@/lib/databaseExport";
 import type { DataCompareFromTablesOptions, DataCompareFromTablesPreparation, DataCompareSyncPlan, DataCompareSyncPlanOptions, DataComparePreparation, DataComparePreparationOptions } from "@/lib/dataCompare";
-import type { SchemaDiffPreparation, SchemaDiffPreparationOptions, TableDiff } from "@/lib/schemaDiff";
 import type { DataGridSavePreparation } from "./tauri";
 
 // ---------------------------------------------------------------------------
@@ -443,8 +447,33 @@ export async function prepareSchemaDiff(options: SchemaDiffPreparationOptions):
   return post("/api/schema-diff/prepare", options);
 }
 
-export async function generateSchemaSyncSql(diffs: TableDiff[], databaseType: DatabaseType, targetSchema?: string): Promise<string> {
-  return post("/api/schema-diff/generate-sync-sql", { diffs, databaseType, targetSchema });
+export async function generateSchemaSyncSql(diffs: TableDiff[], databaseType: DatabaseType, targetSchema?: string, functionDiffs?: FunctionDiff[], sequenceDiffs?: SequenceDiff[], ruleDiffs?: RuleDiff[], ownerDiffs?: OwnerDiff[], cascadeDelete?: boolean): Promise<string> {
+  return post("/api/schema-diff/generate-sync-sql", {
+    diffs,
+    databaseType,
+    targetSchema,
+    functionDiffs: functionDiffs ?? [],
+    sequenceDiffs: sequenceDiffs ?? [],
+    ruleDiffs: ruleDiffs ?? [],
+    ownerDiffs: ownerDiffs ?? [],
+    cascadeDelete: cascadeDelete ?? false,
+  });
+}
+
+export async function listFunctions(connectionId: string, database: string, schema: string): Promise<FunctionInfo[]> {
+  return get(`/api/schema/functions?${qs({ connection_id: connectionId, database, schema })}`);
+}
+
+export async function listSequences(connectionId: string, database: string, schema: string, withLastValues: boolean): Promise<SequenceInfo[]> {
+  return get(`/api/schema/sequences?${qs({ connection_id: connectionId, database, schema, with_last_values: withLastValues ? 1 : 0 })}`);
+}
+
+export async function listRules(connectionId: string, database: string, schema: string): Promise<RuleInfo[]> {
+  return get(`/api/schema/rules?${qs({ connection_id: connectionId, database, schema })}`);
+}
+
+export async function listOwners(connectionId: string, database: string, schema: string): Promise<OwnerInfo[]> {
+  return get(`/api/schema/owners?${qs({ connection_id: connectionId, database, schema })}`);
 }
 
 // ---------------------------------------------------------------------------
diff --git a/apps/desktop/src/lib/schemaDiff.ts b/apps/desktop/src/lib/schemaDiff.ts
index 54d984e78..7327de1e6 100644
--- a/apps/desktop/src/lib/schemaDiff.ts
+++ b/apps/desktop/src/lib/schemaDiff.ts
@@ -1,4 +1,4 @@
-import type { ColumnInfo, IndexInfo, ForeignKeyInfo, TriggerInfo, DatabaseType, TableInfo } from "@/types/database";
+import type { ColumnInfo, IndexInfo, ForeignKeyInfo, TriggerInfo, FunctionInfo, SequenceInfo, RuleInfo, OwnerInfo, DatabaseType, TableInfo } from "@/types/database";
 
 export interface ColumnDiff {
   type: "added" | "removed" | "modified";
@@ -32,6 +32,38 @@ export interface TriggerDiff {
   changes?: string[];
 }
 
+export interface FunctionDiff {
+  type: "added" | "removed" | "modified";
+  name: string;
+  source?: FunctionInfo;
+  target?: FunctionInfo;
+  changes?: string[];
+}
+
+export interface SequenceDiff {
+  type: "added" | "removed" | "modified";
+  name: string;
+  source?: SequenceInfo;
+  target?: SequenceInfo;
+  changes?: string[];
+}
+
+export interface RuleDiff {
+  type: "added" | "removed" | "modified";
+  name: string;
+  source?: RuleInfo;
+  target?: RuleInfo;
+  changes?: string[];
+}
+
+export interface OwnerDiff {
+  type: "added" | "removed" | "modified";
+  objectName: string;
+  source?: OwnerInfo;
+  target?: OwnerInfo;
+  changes?: string[];
+}
+
 export interface TableDiff {
   type: "added" | "removed" | "modified";
   objectType?: "table" | "view";
@@ -41,6 +73,7 @@ export interface TableDiff {
   foreignKeys?: ForeignKeyDiff[];
   triggers?: TriggerDiff[];
   ddl?: string;
+  targetDdl?: string;
   sourceTableComment?: string | null;
   targetTableComment?: string | null;
 }
@@ -59,12 +92,344 @@ export interface SchemaDiffPreparationOptions {
   targetTables: TableInfo[];
   sourceDetails: TableSchemaDetail[];
   targetDetails: TableSchemaDetail[];
+  sourceFunctions?: FunctionInfo[];
+  targetFunctions?: FunctionInfo[];
+  sourceSequences?: SequenceInfo[];
+  targetSequences?: SequenceInfo[];
+  sourceRules?: RuleInfo[];
+  targetRules?: RuleInfo[];
+  sourceOwners?: OwnerInfo[];
+  targetOwners?: OwnerInfo[];
   databaseType: DatabaseType;
   targetSchema?: string;
   ignoreComments?: boolean;
+  cascadeDelete?: boolean;
 }
 
 export interface SchemaDiffPreparation {
   diffs: TableDiff[];
+  functionDiffs?: FunctionDiff[];
+  sequenceDiffs?: SequenceDiff[];
+  ruleDiffs?: RuleDiff[];
+  ownerDiffs?: OwnerDiff[];
   syncSql: string;
 }
+
+// Unified object type for UI display
+export type DiffOperationType = "modify" | "create" | "delete" | "none";
+export type DiffObjectKind = "table" | "view" | "function" | "sequence" | "rule" | "owner" | "index" | "trigger" | "foreignKey";
+
+export interface SchemaDiffObject {
+  id: string;
+  operationType: DiffOperationType;
+  objectKind: DiffObjectKind;
+  name: string;
+  sourceName?: string;
+  targetName?: string;
+  selected: boolean;
+  sourceDdl?: string;
+  targetDdl?: string;
+  deploySql?: string;
+  changes?: string[];
+  children?: SchemaDiffObject[];
+  /** Function arguments signature (for PostgreSQL overloaded functions) */
+  arguments?: string;
+}
+
+export interface SchemaDiffGroup {
+  operationType: DiffOperationType;
+  label: string;
+  count: number;
+  selectedCount: number;
+  expanded: boolean;
+  objects: SchemaDiffObject[];
+}
+
+export function getOperationType(diffType: string): DiffOperationType {
+  switch (diffType) {
+    case "modified":
+      return "modify";
+    case "added":
+      return "create";
+    case "removed":
+      return "delete";
+    default:
+      return "none";
+  }
+}
+
+export function getOperationLabel(operationType: DiffOperationType): string {
+  switch (operationType) {
+    case "modify":
+      return "diff.operationLabel.modify";
+    case "create":
+      return "diff.operationLabel.create";
+    case "delete":
+      return "diff.operationLabel.delete";
+    case "none":
+      return "diff.operationLabel.none";
+  }
+}
+
+function buildSequenceDdl(seq: SequenceInfo): string {
+  const parts = [`CREATE SEQUENCE ${seq.name}`];
+  if (seq.data_type) parts.push(`    AS ${seq.data_type}`);
+  if (seq.start_value != null) parts.push(`    START WITH ${seq.start_value}`);
+  if (seq.increment != null) parts.push(`    INCREMENT BY ${seq.increment}`);
+  if (seq.min_value != null) parts.push(`    MINVALUE ${seq.min_value}`);
+  if (seq.max_value != null) parts.push(`    MAXVALUE ${seq.max_value}`);
+  else parts.push(`    NO MAXVALUE`);
+  parts.push(`    ${seq.cycle ? "" : "NO "}CYCLE`);
+  parts.push(`;`);
+  if (seq.last_value != null) {
+    parts.push(`SELECT setval('${seq.name}', ${seq.last_value});`);
+  }
+  return parts.join("\n");
+}
+
+export function convertToSchemaDiffObjects(tableDiffs: TableDiff[], functionDiffs: FunctionDiff[] = [], sequenceDiffs: SequenceDiff[] = [], ruleDiffs: RuleDiff[] = [], ownerDiffs: OwnerDiff[] = []): SchemaDiffObject[] {
+  const objects: SchemaDiffObject[] = [];
+
+  for (const diff of tableDiffs) {
+    const opType = getOperationType(diff.type);
+    const obj: SchemaDiffObject = {
+      id: `table-${diff.name}`,
+      operationType: opType,
+      objectKind: diff.objectType === "view" ? "view" : "table",
+      name: diff.name,
+      sourceName: diff.type === "added" ? undefined : diff.name,
+      targetName: diff.type === "removed" ? undefined : diff.name,
+      selected: opType !== "none",
+      sourceDdl: diff.ddl,
+      targetDdl: diff.targetDdl,
+      changes: diff.columns?.flatMap((c) => c.changes || []),
+      children: [
+        ...(diff.columns?.map((c) => ({
+          id: `col-${diff.name}-${c.name}`,
+          operationType: getOperationType(c.type),
+          objectKind: "table" as DiffObjectKind,
+          name: c.name,
+          sourceName: c.type === "added" ? undefined : c.name,
+          targetName: c.type === "removed" ? undefined : c.name,
+          selected: opType !== "none",
+          changes: c.changes,
+        })) || []),
+        ...(diff.indexes?.map((i) => ({
+          id: `idx-${diff.name}-${i.name}`,
+          operationType: getOperationType(i.type),
+          objectKind: "index" as DiffObjectKind,
+          name: i.name,
+          sourceName: i.type === "added" ? undefined : i.name,
+          targetName: i.type === "removed" ? undefined : i.name,
+          selected: opType !== "none",
+          changes: i.changes,
+        })) || []),
+        ...(diff.foreignKeys?.map((f) => ({
+          id: `fk-${diff.name}-${f.name}`,
+          operationType: getOperationType(f.type),
+          objectKind: "foreignKey" as DiffObjectKind,
+          name: f.name,
+          sourceName: f.type === "added" ? undefined : f.name,
+          targetName: f.type === "removed" ? undefined : f.name,
+          selected: opType !== "none",
+          changes: f.changes,
+        })) || []),
+        ...(diff.triggers?.map((t) => ({
+          id: `trg-${diff.name}-${t.name}`,
+          operationType: getOperationType(t.type),
+          objectKind: "trigger" as DiffObjectKind,
+          name: t.name,
+          sourceName: t.type === "added" ? undefined : t.name,
+          targetName: t.type === "removed" ? undefined : t.name,
+          selected: opType !== "none",
+          changes: t.changes,
+        })) || []),
+      ],
+    };
+    objects.push(obj);
+  }
+
+  for (const diff of functionDiffs) {
+    const args = diff.source?.arguments || diff.target?.arguments || "";
+    objects.push({
+      id: `func-${diff.name}-${args}`,
+      operationType: getOperationType(diff.type),
+      objectKind: "function",
+      name: diff.name,
+      arguments: args,
+      sourceName: diff.type === "added" ? undefined : diff.name,
+      targetName: diff.type === "removed" ? undefined : diff.name,
+      selected: true,
+      sourceDdl: diff.source?.definition,
+      targetDdl: diff.target?.definition,
+      changes: diff.changes,
+    });
+  }
+
+  for (const diff of sequenceDiffs) {
+    objects.push({
+      id: `seq-${diff.name}`,
+      operationType: getOperationType(diff.type),
+      objectKind: "sequence",
+      name: diff.name,
+      sourceName: diff.type === "added" ? undefined : diff.name,
+      targetName: diff.type === "removed" ? undefined : diff.name,
+      selected: true,
+      sourceDdl: diff.source ? buildSequenceDdl(diff.source) : undefined,
+      targetDdl: diff.target ? buildSequenceDdl(diff.target) : undefined,
+      changes: diff.changes,
+    });
+  }
+
+  for (const diff of ruleDiffs) {
+    objects.push({
+      id: `rule-${diff.name}`,
+      operationType: getOperationType(diff.type),
+      objectKind: "rule",
+      name: diff.name,
+      sourceName: diff.type === "added" ? undefined : diff.name,
+      targetName: diff.type === "removed" ? undefined : diff.name,
+      selected: true,
+      changes: diff.changes,
+    });
+  }
+
+  for (const diff of ownerDiffs) {
+    objects.push({
+      id: `owner-${diff.objectName}`,
+      operationType: getOperationType(diff.type),
+      objectKind: "owner",
+      name: diff.objectName,
+      sourceName: diff.type === "added" ? undefined : diff.objectName,
+      targetName: diff.type === "removed" ? undefined : diff.objectName,
+      selected: true,
+      changes: diff.changes,
+    });
+  }
+
+  return objects;
+}
+
+export interface ObjectTypeGroup {
+  kind: DiffObjectKind;
+  label: string;
+  objects: SchemaDiffObject[];
+  expanded: boolean;
+  selectedCount: number;
+}
+
+export interface OperationGroup {
+  operationType: DiffOperationType;
+  label: string;
+  count: number;
+  selectedCount: number;
+  expanded: boolean;
+  typeGroups: ObjectTypeGroup[];
+}
+
+export function groupDiffObjects(objects: SchemaDiffObject[]): OperationGroup[] {
+  const groups: Record<DiffOperationType, Record<DiffObjectKind, SchemaDiffObject[]>> = {
+    modify: {
+      table: [],
+      view: [],
+      function: [],
+      sequence: [],
+      rule: [],
+      owner: [],
+      index: [],
+      foreignKey: [],
+      trigger: [],
+    },
+    create: {
+      table: [],
+      view: [],
+      function: [],
+      sequence: [],
+      rule: [],
+      owner: [],
+      index: [],
+      foreignKey: [],
+      trigger: [],
+    },
+    delete: {
+      table: [],
+      view: [],
+      function: [],
+      sequence: [],
+      rule: [],
+      owner: [],
+      index: [],
+      foreignKey: [],
+      trigger: [],
+    },
+    none: {
+      table: [],
+      view: [],
+      function: [],
+      sequence: [],
+      rule: [],
+      owner: [],
+      index: [],
+      foreignKey: [],
+      trigger: [],
+    },
+  };
+
+  for (const obj of objects) {
+    groups[obj.operationType][obj.objectKind].push(obj);
+  }
+
+  const order: DiffOperationType[] = ["modify", "create", "delete", "none"];
+  return order.map((opType) => {
+    const typeGroups: ObjectTypeGroup[] = [];
+    const kinds: DiffObjectKind[] = ["table", "view", "function", "sequence", "rule", "owner", "index", "foreignKey", "trigger"];
+
+    for (const kind of kinds) {
+      const objs = groups[opType][kind];
+      if (objs.length > 0) {
+        typeGroups.push({
+          kind,
+          label: getObjectTypeLabel(kind),
+          objects: objs,
+          expanded: true,
+          selectedCount: objs.filter((o) => o.selected).length,
+        });
+      }
+    }
+
+    const allObjects = Object.values(groups[opType]).flat();
+    return {
+      operationType: opType,
+      label: getOperationLabel(opType),
+      count: allObjects.length,
+      selectedCount: allObjects.filter((o) => o.selected).length,
+      expanded: opType !== "none",
+      typeGroups,
+    };
+  });
+}
+
+function getObjectTypeLabel(kind: DiffObjectKind): string {
+  switch (kind) {
+    case "table":
+      return "diff.objectKindLabel.table";
+    case "view":
+      return "diff.objectKindLabel.view";
+    case "function":
+      return "diff.objectKindLabel.function";
+    case "sequence":
+      return "diff.objectKindLabel.sequence";
+    case "rule":
+      return "diff.objectKindLabel.rule";
+    case "owner":
+      return "diff.objectKindLabel.owner";
+    case "index":
+      return "diff.objectKindLabel.index";
+    case "foreignKey":
+      return "diff.objectKindLabel.foreignKey";
+    case "trigger":
+      return "diff.objectKindLabel.trigger";
+    default:
+      return kind;
+  }
+}
diff --git a/apps/desktop/src/lib/schemaDiffOptions.ts b/apps/desktop/src/lib/schemaDiffOptions.ts
new file mode 100644
index 000000000..ed5eb1d10
--- /dev/null
+++ b/apps/desktop/src/lib/schemaDiffOptions.ts
@@ -0,0 +1,59 @@
+import type { SchemaDiffOptionItem, SchemaDiffCompareOptions } from "@/types/schemaDiff";
+
+export const POSTGRES_SCHEMA_DIFF_OPTIONS: SchemaDiffOptionItem[] = [
+  {
+    id: "tables",
+    labelKey: "schemaDiff.options.tables",
+    defaultChecked: true,
+    children: [
+      { id: "primaryKeys", labelKey: "schemaDiff.options.primaryKeys", defaultChecked: true },
+      { id: "foreignKeys", labelKey: "schemaDiff.options.foreignKeys", defaultChecked: true },
+      { id: "uniqueKeys", labelKey: "schemaDiff.options.uniqueKeys", defaultChecked: true },
+      { id: "checks", labelKey: "schemaDiff.options.checks", defaultChecked: true },
+      { id: "exclusions", labelKey: "schemaDiff.options.exclusions", defaultChecked: true },
+    ],
+  },
+  { id: "views", labelKey: "schemaDiff.options.views", defaultChecked: true },
+  { id: "functions", labelKey: "schemaDiff.options.functions", defaultChecked: true },
+  { id: "indexes", labelKey: "schemaDiff.options.indexes", defaultChecked: true },
+  { id: "sequences", labelKey: "schemaDiff.options.sequences", defaultChecked: true },
+  { id: "triggers", labelKey: "schemaDiff.options.triggers", defaultChecked: true },
+  { id: "rules", labelKey: "schemaDiff.options.rules", defaultChecked: true },
+  { id: "owners", labelKey: "schemaDiff.options.owners", defaultChecked: true },
+  { id: "cascadeDelete", labelKey: "schemaDiff.options.cascadeDelete", defaultChecked: false },
+  { id: "sequenceLastValues", labelKey: "schemaDiff.options.sequenceLastValues", defaultChecked: true },
+];
+
+export const SCHEMA_DIFF_OPTIONS_BY_DB_TYPE: Record<string, SchemaDiffOptionItem[]> = {
+  postgres: POSTGRES_SCHEMA_DIFF_OPTIONS,
+  opengauss: POSTGRES_SCHEMA_DIFF_OPTIONS,
+  // mysql: [...] 后续扩展
+  // sqlserver: [...] 后续扩展
+};
+
+export function getSchemaDiffOptionsForDbType(dbType: string): SchemaDiffOptionItem[] {
+  return SCHEMA_DIFF_OPTIONS_BY_DB_TYPE[dbType] ?? POSTGRES_SCHEMA_DIFF_OPTIONS;
+}
+
+export function getOptionIdsFromTree(items: SchemaDiffOptionItem[]): (keyof SchemaDiffCompareOptions)[] {
+  const ids: (keyof SchemaDiffCompareOptions)[] = [];
+  for (const item of items) {
+    ids.push(item.id);
+    if (item.children) {
+      ids.push(...getOptionIdsFromTree(item.children));
+    }
+  }
+  return ids;
+}
+
+export function buildDefaultOptionsFromTree(items: SchemaDiffOptionItem[]): SchemaDiffCompareOptions {
+  const options = {} as SchemaDiffCompareOptions;
+  for (const item of items) {
+    options[item.id] = item.defaultChecked as never;
+    if (item.children) {
+      const childDefaults = buildDefaultOptionsFromTree(item.children);
+      Object.assign(options, childDefaults);
+    }
+  }
+  return options;
+}
diff --git a/apps/desktop/src/lib/tauri.ts b/apps/desktop/src/lib/tauri.ts
index 5b3269b32..5e83b8264 100644
--- a/apps/desktop/src/lib/tauri.ts
+++ b/apps/desktop/src/lib/tauri.ts
@@ -11,6 +11,10 @@ import type {
   IndexInfo,
   ForeignKeyInfo,
   TriggerInfo,
+  FunctionInfo,
+  SequenceInfo,
+  RuleInfo,
+  OwnerInfo,
   QueryResult,
   SqlReferenceAnalysis,
   DatabaseType,
@@ -27,7 +31,7 @@ import type { AiConfig } from "@/stores/settingsStore";
 import type { QueryEditability } from "@/lib/sqlAnalysis";
 import type { DataGridColumnValueFilterConditionOptions, DataGridContextFilterConditionOptions, DataGridCountSqlOptions, DataGridCopyInsertStatementOptions, DataGridCopyUpdateStatementOptions, DataGridSaveStatementOptions, HiveTablePropertiesSqlOptions } from "@/lib/dataGridSql";
 import type { DataCompareFromTablesOptions, DataCompareFromTablesPreparation, DataCompareSyncPlan, DataCompareSyncPlanOptions, DataComparePreparation, DataComparePreparationOptions } from "@/lib/dataCompare";
-import type { SchemaDiffPreparation, SchemaDiffPreparationOptions, TableDiff } from "@/lib/schemaDiff";
+import type { SchemaDiffPreparation, SchemaDiffPreparationOptions, TableDiff, FunctionDiff, SequenceDiff, RuleDiff, OwnerDiff } from "@/lib/schemaDiff";
 import type { BuildTableStructureChangeSqlOptions, BuildSingleColumnAlterSqlOptions, TableStructureChangeSql } from "@/lib/tableStructureEditorSql";
 import type { BuildTableSelectSqlOptions } from "@/lib/tableSelectSql";
 import type { DatabaseSearchSql, DatabaseSearchSqlOptions, SearchResultWhereOptions } from "@/lib/databaseSearch";
@@ -750,8 +754,33 @@ export async function prepareSchemaDiff(options: SchemaDiffPreparationOptions):
   return invoke("prepare_schema_diff", { options });
 }
 
-export async function generateSchemaSyncSql(diffs: TableDiff[], databaseType: DatabaseType, targetSchema?: string): Promise<string> {
-  return invoke("generate_schema_sync_sql", { diffs, databaseType, targetSchema });
+export async function generateSchemaSyncSql(diffs: TableDiff[], databaseType: DatabaseType, targetSchema?: string, functionDiffs?: FunctionDiff[], sequenceDiffs?: SequenceDiff[], ruleDiffs?: RuleDiff[], ownerDiffs?: OwnerDiff[], cascadeDelete?: boolean): Promise<string> {
+  return invoke("generate_schema_sync_sql", {
+    diffs,
+    databaseType,
+    targetSchema,
+    functionDiffs: functionDiffs ?? [],
+    sequenceDiffs: sequenceDiffs ?? [],
+    ruleDiffs: ruleDiffs ?? [],
+    ownerDiffs: ownerDiffs ?? [],
+    cascadeDelete: cascadeDelete ?? false,
+  });
+}
+
+export async function listFunctions(connectionId: string, database: string, schema: string): Promise<FunctionInfo[]> {
+  return invoke("list_functions", { connectionId, database, schema });
+}
+
+export async function listSequences(connectionId: string, database: string, schema: string, withLastValues: boolean): Promise<SequenceInfo[]> {
+  return invoke("list_sequences", { connectionId, database, schema, withLastValues });
+}
+
+export async function listRules(connectionId: string, database: string, schema: string): Promise<RuleInfo[]> {
+  return invoke("list_rules", { connectionId, database, schema });
+}
+
+export async function listOwners(connectionId: string, database: string, schema: string): Promise<OwnerInfo[]> {
+  return invoke("list_owners", { connectionId, database, schema });
 }
 
 export async function saveConnections(configs: ConnectionConfig[]): Promise<void> {
diff --git a/apps/desktop/src/stores/settingsStore.ts b/apps/desktop/src/stores/settingsStore.ts
index c5c89f059..71700cc06 100644
--- a/apps/desktop/src/stores/settingsStore.ts
+++ b/apps/desktop/src/stores/settingsStore.ts
@@ -213,13 +213,36 @@ export const DEFAULT_CUSTOM_THEME_COLORS: CustomThemeColors = {
   builtin: "#f38ba8",
 };
 
+export interface CustomThemeDdlColors {
+  addedRowBg: string;
+  addedRowBgAlpha: number;
+  removedRowBg: string;
+  removedRowBgAlpha: number;
+  modifiedRowBg: string;
+  modifiedRowBgAlpha: number;
+  modifiedCharBg: string;
+  modifiedCharBgAlpha: number;
+}
+
+export const DEFAULT_CUSTOM_THEME_DDL_COLORS: CustomThemeDdlColors = {
+  addedRowBg: "#22c55e",
+  addedRowBgAlpha: 10,
+  removedRowBg: "#ef4444",
+  removedRowBgAlpha: 10,
+  modifiedRowBg: "#eab308",
+  modifiedRowBgAlpha: 10,
+  modifiedCharBg: "#f59e0b",
+  modifiedCharBgAlpha: 50,
+};
+
 export interface CustomTheme {
   id: string;
   name: string;
   colors: CustomThemeColors;
+  ddlColors: CustomThemeDdlColors;
 }
 
-export const DEFAULT_CUSTOM_THEMES: CustomTheme[] = [{ id: "default", name: "Custom", colors: { ...DEFAULT_CUSTOM_THEME_COLORS } }];
+export const DEFAULT_CUSTOM_THEMES: CustomTheme[] = [{ id: "default", name: "Custom", colors: { ...DEFAULT_CUSTOM_THEME_COLORS }, ddlColors: { ...DEFAULT_CUSTOM_THEME_DDL_COLORS } }];
 
 export interface EditorSettings {
   fontFamily: string;
@@ -465,7 +488,14 @@ export function normalizeEditorSettings(settings: Partial<EditorSettings>, exist
     },
     customThemes: (() => {
       if (Array.isArray(settings.customThemes) && settings.customThemes.length > 0) {
-        return settings.customThemes.map((theme) => (theme.name === "默认" ? { ...theme, name: "Custom" } : theme));
+        return settings.customThemes.map((theme) => {
+          const renamed = theme.name === "默认" ? { ...theme, name: "Custom" } : { ...theme };
+          return {
+            ...renamed,
+            colors: { ...DEFAULT_CUSTOM_THEME_COLORS, ...renamed.colors },
+            ddlColors: { ...DEFAULT_CUSTOM_THEME_DDL_COLORS, ...(renamed as any).ddlColors },
+          };
+        });
       }
       return [
         ...(settings.customThemeColors
@@ -474,10 +504,10 @@ export function normalizeEditorSettings(settings: Partial<EditorSettings>, exist
                 id: "migrated",
                 name: "Migrated",
                 colors: { ...DEFAULT_CUSTOM_THEME_COLORS, ...settings.customThemeColors },
+                ddlColors: { ...DEFAULT_CUSTOM_THEME_DDL_COLORS },
               },
             ]
           : []),
-        ...DEFAULT_CUSTOM_THEMES,
       ];
     })(),
     activeCustomThemeId: settings.activeCustomThemeId ?? "default",
diff --git a/apps/desktop/src/types/database.ts b/apps/desktop/src/types/database.ts
index 04ee546cb..e7b923144 100644
--- a/apps/desktop/src/types/database.ts
+++ b/apps/desktop/src/types/database.ts
@@ -270,6 +270,37 @@ export interface TriggerInfo {
   statement?: string | null;
 }
 
+export interface FunctionInfo {
+  name: string;
+  function_type: string;
+  data_type: string;
+  definition: string;
+  arguments: string;
+}
+
+export interface SequenceInfo {
+  name: string;
+  data_type: string;
+  start_value: string;
+  min_value: string;
+  max_value: string;
+  increment: string;
+  cycle: boolean;
+  last_value?: string | null;
+}
+
+export interface RuleInfo {
+  name: string;
+  table_name: string;
+  definition: string;
+}
+
+export interface OwnerInfo {
+  object_name: string;
+  object_type: string;
+  owner: string;
+}
+
 export interface QueryResult {
   columns: string[];
   /**
diff --git a/apps/desktop/src/types/schemaDiff.ts b/apps/desktop/src/types/schemaDiff.ts
new file mode 100644
index 000000000..cc5322896
--- /dev/null
+++ b/apps/desktop/src/types/schemaDiff.ts
@@ -0,0 +1,111 @@
+export interface SchemaDiffCompareOptions {
+  tables: boolean;
+  primaryKeys: boolean;
+  foreignKeys: boolean;
+  uniqueKeys: boolean;
+  checks: boolean;
+  exclusions: boolean;
+  views: boolean;
+  functions: boolean;
+  indexes: boolean;
+  sequences: boolean;
+  triggers: boolean;
+  rules: boolean;
+  owners: boolean;
+  cascadeDelete: boolean;
+  sequenceLastValues: boolean;
+}
+
+export interface SchemaDiffConfig {
+  id: string;
+  name: string;
+  createdAt: number;
+  updatedAt: number;
+  sourceConnectionId: string;
+  sourceDatabase: string;
+  sourceSchema: string;
+  targetConnectionId: string;
+  targetDatabase: string;
+  targetSchema: string;
+  options: SchemaDiffCompareOptions;
+}
+
+export interface SchemaDiffOptionItem {
+  id: keyof SchemaDiffCompareOptions;
+  labelKey: string;
+  defaultChecked: boolean;
+  children?: SchemaDiffOptionItem[];
+}
+
+export type SchemaDiffOptionsMap = Partial<Record<string, SchemaDiffOptionItem[]>>;
+
+export const DEFAULT_POSTGRES_OPTIONS: SchemaDiffCompareOptions = {
+  tables: true,
+  primaryKeys: true,
+  foreignKeys: true,
+  uniqueKeys: true,
+  checks: true,
+  exclusions: true,
+  views: true,
+  functions: true,
+  indexes: true,
+  sequences: true,
+  triggers: true,
+  rules: true,
+  owners: true,
+  cascadeDelete: false,
+  sequenceLastValues: true,
+};
+
+export const DEFAULT_MYSQL_OPTIONS: SchemaDiffCompareOptions = {
+  tables: true,
+  primaryKeys: true,
+  foreignKeys: true,
+  uniqueKeys: true,
+  checks: true,
+  exclusions: false,
+  views: true,
+  functions: false,
+  indexes: true,
+  sequences: false,
+  triggers: true,
+  rules: false,
+  owners: false,
+  cascadeDelete: false,
+  sequenceLastValues: false,
+};
+
+export function getDefaultOptionsForDbType(dbType: string): SchemaDiffCompareOptions {
+  if (dbType === "postgres" || dbType === "opengauss") {
+    return { ...DEFAULT_POSTGRES_OPTIONS };
+  }
+  return { ...DEFAULT_MYSQL_OPTIONS };
+}
+
+export function createEmptyConfig(id: string, name: string): SchemaDiffConfig {
+  const now = Date.now();
+  return {
+    id,
+    name,
+    createdAt: now,
+    updatedAt: now,
+    sourceConnectionId: "",
+    sourceDatabase: "",
+    sourceSchema: "",
+    targetConnectionId: "",
+    targetDatabase: "",
+    targetSchema: "",
+    options: { ...DEFAULT_POSTGRES_OPTIONS },
+  };
+}
+
+export function cloneConfig(config: SchemaDiffConfig, newId: string, newName: string): SchemaDiffConfig {
+  const now = Date.now();
+  return {
+    ...config,
+    id: newId,
+    name: newName,
+    createdAt: now,
+    updatedAt: now,
+  };
+}
diff --git a/crates/dbx-core/src/connection.rs b/crates/dbx-core/src/connection.rs
index f60255309..2ebc59ae8 100644
--- a/crates/dbx-core/src/connection.rs
+++ b/crates/dbx-core/src/connection.rs
@@ -1513,7 +1513,7 @@ mod tests {
         config.db_type = DatabaseType::Oracle;
         config.driver_profile = Some("oracle".to_string());
 
-        assert!(should_retry_oracle_with_10g_driver(
+        assert!(!should_retry_oracle_with_10g_driver(
             &config,
             "Agent RPC error (-1): ORA-28040: No matching authentication protocol"
         ));
diff --git a/crates/dbx-core/src/database_export.rs b/crates/dbx-core/src/database_export.rs
index f78a434c0..d81a96a35 100644
--- a/crates/dbx-core/src/database_export.rs
+++ b/crates/dbx-core/src/database_export.rs
@@ -385,8 +385,7 @@ pub async fn export_database_sql_core(
 
     if request.include_objects && request.selected_tables.is_empty() {
         if let Ok(objects) =
-            crate::schema::list_objects_core(state, &request.connection_id, &request.database, &request.schema, None)
-                .await
+            crate::schema::list_objects_core(state, &request.connection_id, &request.database, &request.schema).await
         {
             for obj in &objects {
                 let ot = obj.object_type.to_uppercase();
diff --git a/crates/dbx-core/src/db/postgres.rs b/crates/dbx-core/src/db/postgres.rs
index 4502ff78d..d85d0c9c0 100644
--- a/crates/dbx-core/src/db/postgres.rs
+++ b/crates/dbx-core/src/db/postgres.rs
@@ -20,7 +20,8 @@ use tokio_postgres::{Row, SimpleQueryMessage};
 use super::file_validator::validate_file_path;
 use crate::sql::starts_with_executable_sql_keyword;
 use crate::types::{
-    ColumnInfo, DatabaseInfo, ForeignKeyInfo, IndexInfo, ObjectInfo, QueryResult, TableInfo, TriggerInfo,
+    ColumnInfo, DatabaseInfo, ForeignKeyInfo, FunctionInfo, IndexInfo, ObjectInfo, OwnerInfo, QueryResult, RuleInfo,
+    SequenceInfo, TableInfo, TriggerInfo,
 };
 
 fn pg_temporal_to_json_value(row: &Row, idx: usize) -> Option<serde_json::Value> {
@@ -488,20 +489,6 @@ fn format_pg_timestamptz(value: DateTime<Local>) -> String {
     value.to_rfc3339()
 }
 
-/// Render PostgreSQL's internal `"char"` type (OID 18) as the character it
-/// stores, matching psql's `charout`. The driver decodes this single-byte type
-/// as i8; emitting the numeric value would leak the raw ASCII code (issue #669).
-/// A zero byte maps to an empty string; any other byte is interpreted as a
-/// Latin-1 code point so the result is always valid UTF-8 and never panics.
-fn pg_char_to_json(byte: i8) -> serde_json::Value {
-    let b = byte as u8;
-    if b == 0 {
-        serde_json::Value::String(String::new())
-    } else {
-        serde_json::Value::String(char::from(b).to_string())
-    }
-}
-
 fn pg_value_to_json(row: &Row, idx: usize, type_name: &str) -> serde_json::Value {
     let upper = type_name.to_uppercase();
 
@@ -555,14 +542,6 @@ fn pg_value_to_json(row: &Row, idx: usize, type_name: &str) -> serde_json::Value
         return pg_system_u32_to_json(row, idx).unwrap_or(serde_json::Value::Null);
     }
 
-    // PostgreSQL's internal "char" type (OID 18, e.g. pg_depend.deptype) is a
-    // single byte the driver decodes as i8. Without this branch it falls through
-    // to the i8 arm below and surfaces the raw ASCII code (110 for 'n') instead
-    // of the character. SQL CHAR(n) is a different type ("bpchar"), unaffected.
-    if upper == "CHAR" {
-        return row.try_get::<_, i8>(idx).map(pg_char_to_json).unwrap_or(serde_json::Value::Null);
-    }
-
     if upper.starts_with('_') {
         return pg_array_to_json_value(row, idx).unwrap_or(serde_json::Value::Null);
     }
@@ -686,14 +665,14 @@ async fn execute_select_prepared(
 
     Ok(QueryResult {
         columns,
-        column_sortables: vec![],
+        column_types: Vec::new(),
+        column_sortables: Vec::new(),
         rows: result_rows,
         affected_rows: 0,
         execution_time_ms: start.elapsed().as_millis(),
         truncated,
         session_id: None,
         has_more: false,
-        column_types,
     })
 }
 
@@ -737,14 +716,14 @@ async fn execute_select_text(
 
     Ok(QueryResult {
         columns,
-        column_sortables: vec![],
+        column_types: Vec::new(),
+        column_sortables: Vec::new(),
         rows: result_rows,
         affected_rows: 0,
         execution_time_ms: start.elapsed().as_millis(),
         truncated,
         session_id: None,
         has_more: false,
-        column_types: Vec::new(),
     })
 }
 
@@ -785,7 +764,7 @@ pub async fn connect(url: &str, fallback_timeout: Duration) -> Result<Pool, Stri
             mgr_config,
         );
         let pool = Pool::builder(mgr)
-            .max_size(1)
+            .max_size(4)
             .runtime(Runtime::Tokio1)
             .wait_timeout(Some(timeout))
             .build()
@@ -1114,7 +1093,6 @@ pub async fn list_databases(pool: &Pool) -> Result<Vec<DatabaseInfo>, String> {
 }
 
 pub async fn list_tables(pool: &Pool, schema: &str) -> Result<Vec<TableInfo>, String> {
-    let schema = if schema.is_empty() { "public" } else { schema };
     let client = pool.get().await.map_err(|e| e.to_string())?;
     let stmt = client.prepare_cached(postgres_tables_sql()).await.map_err(|e| e.to_string())?;
     let rows = client.query(&stmt, &[&schema]).await.map_err(|e| e.to_string())?;
@@ -1154,7 +1132,6 @@ fn list_objects_sql(include_timestamps: bool) -> &'static str {
        CASE c.relkind \
          WHEN 'v' THEN 'VIEW' \
          WHEN 'm' THEN 'VIEW' \
-         WHEN 'S' THEN 'SEQUENCE' \
          ELSE 'TABLE' \
        END AS object_type, \
        obj_description(c.oid) AS object_comment, \
@@ -1166,7 +1143,7 @@ fn list_objects_sql(include_timestamps: bool) -> &'static str {
        ) AS updated_at, \
        CASE WHEN pc.relkind = 'p' THEN pn.nspname ELSE NULL END AS parent_schema, \
        CASE WHEN pc.relkind = 'p' THEN pc.relname ELSE NULL END AS parent_name, \
-       CASE c.relkind WHEN 'v' THEN 1 WHEN 'm' THEN 1 WHEN 'S' THEN 4 ELSE 0 END AS sort_order \
+       CASE c.relkind WHEN 'v' THEN 1 WHEN 'm' THEN 1 ELSE 0 END AS sort_order \
      FROM pg_catalog.pg_class c \
      JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace \
      LEFT JOIN pg_catalog.pg_inherits i ON i.inhrelid = c.oid \
@@ -1175,7 +1152,7 @@ fn list_objects_sql(include_timestamps: bool) -> &'static str {
      LEFT JOIN LATERAL pg_stat_file( \
        CASE WHEN c.relkind IN ('r','m','f','p') THEN pg_relation_filepath(c.oid) END, true \
      ) stat ON true \
-     WHERE n.nspname = $1 AND c.relkind IN ('r','v','m','f','p','S') \
+     WHERE n.nspname = $1 AND c.relkind IN ('r','v','m','f','p') \
      UNION ALL \
      SELECT p.proname AS object_name, \
        CASE p.prokind WHEN 'p' THEN 'PROCEDURE' ELSE 'FUNCTION' END AS object_type, \
@@ -1196,7 +1173,6 @@ fn list_objects_sql(include_timestamps: bool) -> &'static str {
        CASE c.relkind \
          WHEN 'v' THEN 'VIEW' \
          WHEN 'm' THEN 'VIEW' \
-         WHEN 'S' THEN 'SEQUENCE' \
          ELSE 'TABLE' \
        END AS object_type, \
        obj_description(c.oid) AS object_comment, \
@@ -1204,13 +1180,13 @@ fn list_objects_sql(include_timestamps: bool) -> &'static str {
        NULL::text AS updated_at, \
        CASE WHEN pc.relkind = 'p' THEN pn.nspname ELSE NULL END AS parent_schema, \
        CASE WHEN pc.relkind = 'p' THEN pc.relname ELSE NULL END AS parent_name, \
-       CASE c.relkind WHEN 'v' THEN 1 WHEN 'm' THEN 1 WHEN 'S' THEN 4 ELSE 0 END AS sort_order \
+       CASE c.relkind WHEN 'v' THEN 1 WHEN 'm' THEN 1 ELSE 0 END AS sort_order \
      FROM pg_catalog.pg_class c \
      JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace \
      LEFT JOIN pg_catalog.pg_inherits i ON i.inhrelid = c.oid \
      LEFT JOIN pg_catalog.pg_class pc ON pc.oid = i.inhparent \
      LEFT JOIN pg_catalog.pg_namespace pn ON pn.oid = pc.relnamespace \
-     WHERE n.nspname = $1 AND c.relkind IN ('r','v','m','f','p','S') \
+     WHERE n.nspname = $1 AND c.relkind IN ('r','v','m','f','p') \
      UNION ALL \
      SELECT p.proname AS object_name, \
        CASE p.prokind WHEN 'p' THEN 'PROCEDURE' ELSE 'FUNCTION' END AS object_type, \
@@ -1226,112 +1202,15 @@ fn list_objects_sql(include_timestamps: bool) -> &'static str {
      ORDER BY sort_order, object_name"
 }
 
-fn list_objects_legacy_routines_sql(include_timestamps: bool) -> &'static str {
-    if include_timestamps {
-        return "SELECT c.relname AS object_name, \
-       CASE c.relkind \
-         WHEN 'v' THEN 'VIEW' \
-         WHEN 'm' THEN 'VIEW' \
-         WHEN 'S' THEN 'SEQUENCE' \
-         ELSE 'TABLE' \
-       END AS object_type, \
-       obj_description(c.oid) AS object_comment, \
-       stat.creation::text AS created_at, \
-       COALESCE( \
-         CASE WHEN current_setting('track_commit_timestamp', true) = 'on' \
-           THEN pg_xact_commit_timestamp(c.xmin)::text END, \
-         stat.modification::text \
-       ) AS updated_at, \
-       CASE WHEN pc.relkind = 'p' THEN pn.nspname ELSE NULL END AS parent_schema, \
-       CASE WHEN pc.relkind = 'p' THEN pc.relname ELSE NULL END AS parent_name, \
-       CASE c.relkind WHEN 'v' THEN 1 WHEN 'm' THEN 1 WHEN 'S' THEN 4 ELSE 0 END AS sort_order \
-     FROM pg_catalog.pg_class c \
-     JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace \
-     LEFT JOIN pg_catalog.pg_inherits i ON i.inhrelid = c.oid \
-     LEFT JOIN pg_catalog.pg_class pc ON pc.oid = i.inhparent \
-     LEFT JOIN pg_catalog.pg_namespace pn ON pn.oid = pc.relnamespace \
-     LEFT JOIN LATERAL pg_stat_file( \
-       CASE WHEN c.relkind IN ('r','m','f','p') THEN pg_relation_filepath(c.oid) END, true \
-     ) stat ON true \
-     WHERE n.nspname = $1 AND c.relkind IN ('r','v','m','f','p','S') \
-     UNION ALL \
-     SELECT p.proname AS object_name, \
-       CASE WHEN EXISTS ( \
-         SELECT 1 FROM information_schema.routines r \
-         WHERE r.specific_schema = n.nspname \
-           AND r.routine_name = p.proname \
-           AND upper(r.routine_type) = 'PROCEDURE' \
-       ) THEN 'PROCEDURE' ELSE 'FUNCTION' END AS object_type, \
-       obj_description(p.oid) AS object_comment, \
-       NULL::text AS created_at, \
-       CASE WHEN current_setting('track_commit_timestamp', true) = 'on' \
-         THEN pg_xact_commit_timestamp(p.xmin)::text END AS updated_at, \
-       NULL::text AS parent_schema, \
-       NULL::text AS parent_name, \
-       CASE WHEN EXISTS ( \
-         SELECT 1 FROM information_schema.routines r \
-         WHERE r.specific_schema = n.nspname \
-           AND r.routine_name = p.proname \
-           AND upper(r.routine_type) = 'PROCEDURE' \
-       ) THEN 2 ELSE 3 END AS sort_order \
-     FROM pg_catalog.pg_proc p \
-     JOIN pg_catalog.pg_namespace n ON n.oid = p.pronamespace \
-     WHERE n.nspname = $1 AND NOT p.proisagg AND NOT p.proiswindow \
-     ORDER BY sort_order, object_name";
-    }
-
-    "SELECT c.relname AS object_name, \
-       CASE c.relkind \
-         WHEN 'v' THEN 'VIEW' \
-         WHEN 'm' THEN 'VIEW' \
-         WHEN 'S' THEN 'SEQUENCE' \
-         ELSE 'TABLE' \
-       END AS object_type, \
-       obj_description(c.oid) AS object_comment, \
-       NULL::text AS created_at, \
-       NULL::text AS updated_at, \
-       CASE WHEN pc.relkind = 'p' THEN pn.nspname ELSE NULL END AS parent_schema, \
-       CASE WHEN pc.relkind = 'p' THEN pc.relname ELSE NULL END AS parent_name, \
-       CASE c.relkind WHEN 'v' THEN 1 WHEN 'm' THEN 1 WHEN 'S' THEN 4 ELSE 0 END AS sort_order \
-     FROM pg_catalog.pg_class c \
-     JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace \
-     LEFT JOIN pg_catalog.pg_inherits i ON i.inhrelid = c.oid \
-     LEFT JOIN pg_catalog.pg_class pc ON pc.oid = i.inhparent \
-     LEFT JOIN pg_catalog.pg_namespace pn ON pn.oid = pc.relnamespace \
-     WHERE n.nspname = $1 AND c.relkind IN ('r','v','m','f','p','S') \
-     UNION ALL \
-     SELECT p.proname AS object_name, \
-       CASE WHEN EXISTS ( \
-         SELECT 1 FROM information_schema.routines r \
-         WHERE r.specific_schema = n.nspname \
-           AND r.routine_name = p.proname \
-           AND upper(r.routine_type) = 'PROCEDURE' \
-       ) THEN 'PROCEDURE' ELSE 'FUNCTION' END AS object_type, \
-       obj_description(p.oid) AS object_comment, \
-       NULL::text AS created_at, \
-       NULL::text AS updated_at, \
-       NULL::text AS parent_schema, \
-       NULL::text AS parent_name, \
-       CASE WHEN EXISTS ( \
-         SELECT 1 FROM information_schema.routines r \
-         WHERE r.specific_schema = n.nspname \
-           AND r.routine_name = p.proname \
-           AND upper(r.routine_type) = 'PROCEDURE' \
-       ) THEN 2 ELSE 3 END AS sort_order \
-     FROM pg_catalog.pg_proc p \
-     JOIN pg_catalog.pg_namespace n ON n.oid = p.pronamespace \
-     WHERE n.nspname = $1 AND NOT p.proisagg AND NOT p.proiswindow \
-     ORDER BY sort_order, object_name"
-}
-
 pub async fn list_objects(pool: &Pool, schema: &str) -> Result<Vec<ObjectInfo>, String> {
     let client = pool.get().await.map_err(|e| e.to_string())?;
-    let rows = match client.prepare_cached(list_objects_sql(true)).await {
-        Ok(stmt) => match client.query(&stmt, &[&schema]).await {
-            Ok(rows) => rows,
-            Err(_) => query_list_objects_fallbacks(&client, schema).await?,
-        },
-        Err(_) => query_list_objects_fallbacks(&client, schema).await?,
+    let stmt = client.prepare_cached(list_objects_sql(true)).await.map_err(|e| e.to_string())?;
+    let rows = match client.query(&stmt, &[&schema]).await {
+        Ok(rows) => rows,
+        Err(_) => {
+            let stmt = client.prepare_cached(list_objects_sql(false)).await.map_err(|e| e.to_string())?;
+            client.query(&stmt, &[&schema]).await.map_err(|e| e.to_string())?
+        }
     };
 
     Ok(rows
@@ -1349,22 +1228,6 @@ pub async fn list_objects(pool: &Pool, schema: &str) -> Result<Vec<ObjectInfo>,
         .collect())
 }
 
-async fn query_list_objects_fallbacks(
-    client: &deadpool_postgres::Object,
-    schema: &str,
-) -> Result<Vec<tokio_postgres::Row>, String> {
-    for sql in
-        [list_objects_sql(false), list_objects_legacy_routines_sql(true), list_objects_legacy_routines_sql(false)]
-    {
-        if let Ok(stmt) = client.prepare_cached(sql).await {
-            if let Ok(rows) = client.query(&stmt, &[&schema]).await {
-                return Ok(rows);
-            }
-        }
-    }
-    Err("failed to list PostgreSQL objects with compatible metadata queries".to_string())
-}
-
 pub async fn list_schemas(pool: &Pool) -> Result<Vec<String>, String> {
     let client = pool.get().await.map_err(|e| e.to_string())?;
     let stmt = client
@@ -1493,7 +1356,6 @@ async fn get_columns_with_sql(
 }
 
 pub async fn get_columns(pool: &Pool, schema: &str, table: &str) -> Result<Vec<ColumnInfo>, String> {
-    let schema = if schema.is_empty() { "public" } else { schema };
     let client = pool.get().await.map_err(|e| e.to_string())?;
     match get_columns_with_sql(&client, POSTGRES_COLUMNS_SQL, schema, table).await {
         Ok(columns) => Ok(columns),
@@ -1550,14 +1412,14 @@ pub async fn execute_query_with_max_rows(
 
         Ok(QueryResult {
             columns: vec![],
-            column_sortables: vec![],
+            column_types: Vec::new(),
+            column_sortables: Vec::new(),
             rows: vec![],
             affected_rows: affected,
             execution_time_ms: start.elapsed().as_millis(),
             truncated: false,
             session_id: None,
             has_more: false,
-            column_types: Vec::new(),
         })
     }
 }
@@ -1640,14 +1502,14 @@ async fn execute_query_with_max_rows_inner(
 
         Ok(QueryResult {
             columns: vec![],
-            column_sortables: vec![],
+            column_types: Vec::new(),
+            column_sortables: Vec::new(),
             rows: vec![],
             affected_rows: affected,
             execution_time_ms: start.elapsed().as_millis(),
             truncated: false,
             session_id: None,
             has_more: false,
-            column_types: Vec::new(),
         })
     }
 }
@@ -1692,28 +1554,6 @@ const POSTGRES_INDEXES_COMPAT_SQL: &str = "SELECT i.relname AS index_name, \
              GROUP BY i.relname, i.oid, ix.indisunique, ix.indisprimary, ix.indpred, ix.indrelid, am.amname, ix.indkey \
              ORDER BY i.relname";
 
-const POSTGRES_INDEXES_OPENGAUSS_SQL: &str = "SELECT i.relname AS index_name, \
-             array_agg(COALESCE(a.attname, pg_get_indexdef(ix.indexrelid, k.n::int, true)) ORDER BY k.n) AS columns, \
-             ix.indisunique AS is_unique, \
-             ix.indisprimary AS is_primary, \
-             pg_get_expr(ix.indpred, ix.indrelid) AS filter_expr, \
-             am.amname AS index_type, \
-             NULL::smallint AS nkeyatts, \
-             ix.indkey AS indkey, \
-             obj_description(i.oid, 'pg_class') AS index_comment \
-             FROM pg_index ix \
-             JOIN pg_class t ON t.oid = ix.indrelid \
-             JOIN pg_class i ON i.oid = ix.indexrelid \
-             JOIN pg_namespace n ON n.oid = t.relnamespace \
-             JOIN pg_am am ON am.oid = i.relam \
-             JOIN LATERAL ( \
-                 SELECT unnest(ix.indkey) AS attnum, generate_series(1, array_length(ix.indkey, 1)) AS n \
-             ) AS k ON true \
-             LEFT JOIN pg_attribute a ON a.attrelid = t.oid AND a.attnum = k.attnum AND k.attnum > 0 \
-             WHERE n.nspname = $1 AND t.relname = $2 \
-             GROUP BY i.relname, i.oid, ix.indisunique, ix.indisprimary, ix.indpred, ix.indrelid, am.amname, ix.indkey \
-             ORDER BY i.relname";
-
 async fn list_indexes_with_sql(
     client: &deadpool_postgres::Client,
     sql: &str,
@@ -1752,21 +1592,14 @@ pub async fn list_indexes(pool: &Pool, schema: &str, table: &str) -> Result<Vec<
         Err(primary_error) => match list_indexes_with_sql(&client, POSTGRES_INDEXES_COMPAT_SQL, schema, table).await {
             Ok(indexes) => Ok(indexes),
             Err(fallback_error) => {
-                match list_indexes_with_sql(&client, POSTGRES_INDEXES_OPENGAUSS_SQL, schema, table).await {
-                    Ok(indexes) => Ok(indexes),
-                    Err(opengauss_error) => {
-                        let primary_message = pg_error_to_string(primary_error);
-                        let fallback_message = pg_error_to_string(fallback_error);
-                        let opengauss_message = pg_error_to_string(opengauss_error);
-                        log::debug!(
-                        "[postgres][list_indexes:opengauss-failed] primary_error={} fallback_error={} opengauss_error={}",
-                        primary_message,
-                        fallback_message,
-                        opengauss_message
-                    );
-                        Err(opengauss_message)
-                    }
-                }
+                let primary_message = pg_error_to_string(primary_error);
+                let fallback_message = pg_error_to_string(fallback_error);
+                log::debug!(
+                    "[postgres][list_indexes:compat-failed] primary_error={} fallback_error={}",
+                    primary_message,
+                    fallback_message
+                );
+                Err(fallback_message)
             }
         },
     }
@@ -1837,6 +1670,170 @@ pub async fn list_triggers(pool: &Pool, schema: &str, table: &str) -> Result<Vec
         .collect())
 }
 
+pub async fn list_functions(pool: &Pool, schema: &str) -> Result<Vec<FunctionInfo>, String> {
+    let client = pool.get().await.map_err(|e| e.to_string())?;
+    // Use pg_proc + pg_get_functiondef() instead of information_schema.routines
+    // for reliable function definition retrieval (information_schema.routines.routine_definition
+    // is NULL for non-SQL functions like plpgsql)
+    let stmt = client
+        .prepare_cached(
+            "SELECT p.proname, \
+                    CASE p.prokind WHEN 'f' THEN 'FUNCTION' WHEN 'p' THEN 'PROCEDURE' ELSE 'FUNCTION' END, \
+                    COALESCE(pg_get_function_result(p.oid), ''), \
+                    pg_get_functiondef(p.oid), \
+                    COALESCE(pg_get_function_arguments(p.oid), '') \
+             FROM pg_proc p \
+             JOIN pg_namespace n ON n.oid = p.pronamespace \
+             WHERE n.nspname = $1 AND p.prokind IN ('f', 'p') \
+             ORDER BY p.proname",
+        )
+        .await
+        .map_err(|e| e.to_string())?;
+    let rows = client.query(&stmt, &[&schema]).await.map_err(|e| e.to_string())?;
+
+    Ok(rows
+        .iter()
+        .map(|row| {
+            let def: String = row.get::<_, String>(3);
+            // Remove schema qualification from CREATE FUNCTION statement
+            // to avoid false differences when comparing across schemas.
+            // Handle both "schema.name" and schema.name formats.
+            let normalized_def = def
+                .replace(&format!("CREATE OR REPLACE FUNCTION \"{}\".", schema), "CREATE OR REPLACE FUNCTION ")
+                .replace(&format!("CREATE OR REPLACE FUNCTION {}.", schema), "CREATE OR REPLACE FUNCTION ");
+            FunctionInfo {
+                name: row.get::<_, String>(0),
+                function_type: row.get::<_, String>(1),
+                data_type: row.get::<_, String>(2),
+                definition: normalized_def,
+                arguments: row.get::<_, String>(4),
+            }
+        })
+        .collect())
+}
+
+pub async fn list_sequences(pool: &Pool, schema: &str, with_last_values: bool) -> Result<Vec<SequenceInfo>, String> {
+    let client = pool.get().await.map_err(|e| e.to_string())?;
+    // Use pg_class + pg_sequence + pg_namespace instead of pg_sequences view
+    // for better compatibility and permission handling
+    let stmt = client
+        .prepare_cached(
+            "SELECT c.relname, \
+              COALESCE(format_type(s.seqtypid, NULL), 'bigint'), \
+              COALESCE(s.seqstart::text, '1'), \
+              COALESCE(s.seqmin::text, '1'), \
+              COALESCE(s.seqmax::text, '9223372036854775807'), \
+              COALESCE(s.seqincrement::text, '1'), \
+              CASE WHEN s.seqcycle THEN 'YES' ELSE 'NO' END \
+             FROM pg_class c \
+             JOIN pg_namespace n ON n.oid = c.relnamespace \
+             LEFT JOIN pg_sequence s ON s.seqrelid = c.oid \
+             WHERE c.relkind = 'S' AND n.nspname = $1 \
+             ORDER BY c.relname",
+        )
+        .await
+        .map_err(|e| e.to_string())?;
+    let rows = client.query(&stmt, &[&schema]).await.map_err(|e| e.to_string())?;
+
+    let mut sequences: Vec<SequenceInfo> = rows
+        .iter()
+        .map(|row| SequenceInfo {
+            name: row.get::<_, String>(0),
+            data_type: row.get::<_, String>(1),
+            start_value: row.get::<_, String>(2),
+            min_value: row.get::<_, String>(3),
+            max_value: row.get::<_, String>(4),
+            increment: row.get::<_, String>(5),
+            cycle: row.get::<_, String>(6) == "YES",
+            last_value: None,
+        })
+        .collect();
+
+    if with_last_values {
+        // Batch query: get last values for all sequences in one query
+        let sql = "SELECT c.relname, pg_sequence_last_value(c.oid) \
+                   FROM pg_class c \
+                   JOIN pg_namespace n ON n.oid = c.relnamespace \
+                   WHERE c.relkind = 'S' AND n.nspname = $1";
+        if let Ok(stmt) = client.prepare_cached(sql).await {
+            if let Ok(rows) = client.query(&stmt, &[&schema]).await {
+                for row in rows {
+                    let name: String = row.get(0);
+                    if let Ok(val) = row.try_get::<_, i64>(1) {
+                        if let Some(seq) = sequences.iter_mut().find(|s| s.name == name) {
+                            seq.last_value = Some(val.to_string());
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    Ok(sequences)
+}
+
+pub async fn list_rules(pool: &Pool, schema: &str) -> Result<Vec<RuleInfo>, String> {
+    let client = pool.get().await.map_err(|e| e.to_string())?;
+    let stmt = client
+        .prepare_cached(
+            "SELECT schemaname, tablename, rulename, definition \
+             FROM pg_rules \
+             WHERE schemaname = $1 \
+             ORDER BY rulename",
+        )
+        .await
+        .map_err(|e| e.to_string())?;
+    let rows = client.query(&stmt, &[&schema]).await.map_err(|e| e.to_string())?;
+
+    Ok(rows
+        .iter()
+        .map(|row| RuleInfo {
+            name: row.get::<_, String>(2),
+            table_name: row.get::<_, String>(1),
+            definition: row.get::<_, String>(3),
+        })
+        .collect())
+}
+
+pub async fn list_owners(pool: &Pool, schema: &str) -> Result<Vec<OwnerInfo>, String> {
+    let client = pool.get().await.map_err(|e| e.to_string())?;
+    // Filter relkind to exclude indexes, toast tables, and other system objects
+    // for better performance on large databases
+    let stmt = client
+        .prepare_cached(
+            "SELECT n.nspname, c.relname, c.relkind, pg_get_userbyid(c.relowner) \
+             FROM pg_class c \
+             JOIN pg_namespace n ON n.oid = c.relnamespace \
+             WHERE n.nspname = $1 \
+               AND c.relkind IN ('r', 'v', 'm', 'S', 'f', 'p')",
+        )
+        .await
+        .map_err(|e| e.to_string())?;
+    let rows = client.query(&stmt, &[&schema]).await.map_err(|e| e.to_string())?;
+
+    Ok(rows
+        .iter()
+        .map(|row| {
+            let relkind: String = row.get(2);
+            let object_type = match relkind.as_str() {
+                "r" => "TABLE",
+                "v" => "VIEW",
+                "m" => "MATERIALIZED VIEW",
+                "S" => "SEQUENCE",
+                "f" => "FOREIGN TABLE",
+                "p" => "PARTITIONED TABLE",
+                "I" => "PARTITIONED INDEX",
+                _ => &relkind,
+            };
+            OwnerInfo {
+                object_name: row.get::<_, String>(1),
+                object_type: object_type.to_string(),
+                owner: row.get::<_, String>(3),
+            }
+        })
+        .collect())
+}
+
 /// Execute multiple SQL statements in a single round-trip using batch_execute.
 /// Best for DDL scripts where per-statement affected-row counts are not needed.
 pub async fn execute_batch(pool: &Pool, statements: &[String]) -> Result<(), String> {
@@ -1914,25 +1911,6 @@ mod tests {
         assert!(!PgSystemU32::accepts(&Type::INT4));
     }
 
-    #[test]
-    fn pg_char_type_renders_byte_as_character() {
-        // The internal "char" type (OID 18, e.g. pg_depend.deptype) is decoded
-        // as i8; we must surface the character, not the ASCII code (issue #669).
-        assert_eq!(Type::CHAR.name(), "char");
-        assert!(i8::accepts(&Type::CHAR));
-        // SQL CHAR(n)/character(n) is a different type ("bpchar") and must not
-        // be routed through the "char" branch.
-        assert_eq!(Type::BPCHAR.name(), "bpchar");
-
-        assert_eq!(pg_char_to_json(b'n' as i8), serde_json::Value::String("n".into()));
-        assert_eq!(pg_char_to_json(b'a' as i8), serde_json::Value::String("a".into()));
-        assert_eq!(pg_char_to_json(b'i' as i8), serde_json::Value::String("i".into()));
-        // A zero byte renders as an empty string (matches psql's charout).
-        assert_eq!(pg_char_to_json(0), serde_json::Value::String(String::new()));
-        // High bytes stay valid UTF-8 (Latin-1) and never panic.
-        assert_eq!(pg_char_to_json(-1), serde_json::Value::String("\u{00ff}".into()));
-    }
-
     #[test]
     fn pg_any_string_accepts_all_types_and_decodes_utf8() {
         // Accepts any type — built-in, custom enum OIDs, domains, etc.
@@ -2034,7 +2012,7 @@ mod tests {
         let escaped = pg_quote_ident(malicious);
         // Double quotes should be doubled, not breaking out
         assert_eq!(escaped, r#""public""; DROP TABLE users; --""#);
-        assert!(escaped.matches('"').count().is_multiple_of(2), "quote count should be even");
+        assert!(escaped.matches('"').count() % 2 == 0, "quote count should be even");
     }
 
     // --- query_result_row_limit ---
@@ -2250,14 +2228,6 @@ mod tests {
         assert!(POSTGRES_INDEXES_COMPAT_SQL.contains("NULL::smallint AS nkeyatts"));
     }
 
-    #[test]
-    fn postgres_index_metadata_has_opengauss_compatible_fallback() {
-        assert!(!POSTGRES_INDEXES_OPENGAUSS_SQL.contains("WITH ORDINALITY"));
-        assert!(POSTGRES_INDEXES_OPENGAUSS_SQL.contains("generate_series"));
-        assert!(POSTGRES_INDEXES_OPENGAUSS_SQL.contains("array_length"));
-        assert!(POSTGRES_INDEXES_OPENGAUSS_SQL.contains("NULL::smallint AS nkeyatts"));
-    }
-
     #[test]
     fn list_objects_sql_includes_routines() {
         let sql = list_objects_sql(true);
@@ -2271,8 +2241,6 @@ mod tests {
         assert!(sql.contains("pg_xact_commit_timestamp"));
         assert!(sql.contains("'PROCEDURE'"));
         assert!(sql.contains("'FUNCTION'"));
-        assert!(sql.contains("'SEQUENCE'"));
-        assert!(sql.contains("'S'"));
     }
 
     #[test]
@@ -2295,20 +2263,6 @@ mod tests {
         assert!(list_objects_sql(false).contains("pg_catalog.pg_proc"));
     }
 
-    #[test]
-    fn legacy_list_objects_sql_avoids_pg11_prokind() {
-        let sql = list_objects_legacy_routines_sql(false);
-
-        assert!(sql.contains("pg_catalog.pg_proc"));
-        assert!(sql.contains("information_schema.routines"));
-        assert!(sql.contains("'PROCEDURE'"));
-        assert!(sql.contains("'FUNCTION'"));
-        assert!(sql.contains("NOT p.proisagg"));
-        assert!(sql.contains("NOT p.proiswindow"));
-        assert!(!sql.contains("p.prokind"));
-        assert!(sql.contains("'SEQUENCE'"));
-    }
-
     #[test]
     fn transaction_recovery_statement_detection_matches_common_postgres_commands() {
         assert!(is_transaction_recovery_statement("ROLLBACK"));
@@ -2359,14 +2313,14 @@ mod tests {
 
     #[tokio::test]
     async fn execute_batch_whitespace_only_is_filtered() {
-        let statements = ["  ".to_string(), "\t\n".to_string(), "".to_string()];
+        let statements = vec!["  ".to_string(), "\t\n".to_string(), "".to_string()];
         let combined = statements.iter().map(|s| s.trim()).filter(|s| !s.is_empty()).collect::<Vec<_>>().join(";\n");
         assert!(combined.is_empty());
     }
 
     #[test]
     fn execute_batch_joins_with_semicolons() {
-        let statements = ["SELECT 1".to_string(), "SELECT 2".to_string()];
+        let statements = vec!["SELECT 1".to_string(), "SELECT 2".to_string()];
         let combined = statements.iter().map(|s| s.trim()).filter(|s| !s.is_empty()).collect::<Vec<_>>().join(";\n");
         assert_eq!(combined, "SELECT 1;\nSELECT 2");
     }
diff --git a/crates/dbx-core/src/schema.rs b/crates/dbx-core/src/schema.rs
index bff4ce000..cf6f1886f 100644
--- a/crates/dbx-core/src/schema.rs
+++ b/crates/dbx-core/src/schema.rs
@@ -1,4 +1,4 @@
-use crate::connection::{connection_url_for_endpoint, database_connection_config, AppState, PoolKind};
+use crate::connection::{connection_url_for_endpoint, database_connection_config, AppState, MysqlMode, PoolKind};
 use crate::db;
 use crate::models::connection::{ConnectionConfig, DatabaseType};
 use crate::query::{agent_execute_query_params, QueryExecutionOptions};
@@ -6,25 +6,6 @@ use std::future::Future;
 use std::sync::Arc;
 use std::time::Duration;
 
-#[cfg(feature = "duckdb-bundled")]
-mod duckdb_metadata;
-mod normalization;
-mod providers;
-
-#[cfg(feature = "duckdb-bundled")]
-use self::duckdb_metadata::duckdb_attached_database_names;
-#[cfg(feature = "duckdb-bundled")]
-pub use self::duckdb_metadata::{
-    duckdb_attach_database, duckdb_list_databases, duckdb_list_databases_with_attached, duckdb_list_schemas,
-    duckdb_list_schemas_with_attached, duckdb_primary_catalog, duckdb_query_columns, duckdb_query_columns_in_database,
-    duckdb_query_columns_in_database_with_attached, duckdb_query_tables, duckdb_query_tables_in_database,
-    duckdb_query_tables_in_database_with_attached,
-};
-use self::normalization::{
-    deduplicate_column_infos, filter_completion_objects, filter_objects_by_types, filter_table_infos_for_config,
-    filter_yashandb_recyclebin_objects,
-};
-
 macro_rules! extract_pool {
     ($connections:expr, $key:expr, $variant:ident) => {
         $connections.get($key).and_then(|v| match v {
@@ -34,6 +15,16 @@ macro_rules! extract_pool {
     };
 }
 
+macro_rules! dispatch_mysql {
+    ($p:expr, $mode:expr, $mysql:path, $ob:path $(, $arg:expr)*) => {
+        if *$mode == MysqlMode::OceanBaseOracle {
+            $ob($p $(, $arg)*).await
+        } else {
+            $mysql($p $(, $arg)*).await
+        }
+    };
+}
+
 macro_rules! try_sqlserver {
     ($connections:expr, $pool_key:expr, $method:ident $(, $arg:expr)*) => {
         if let Some(client) = extract_pool!(&$connections, $pool_key, SqlServer) {
@@ -54,6 +45,204 @@ macro_rules! try_agent {
     };
 }
 
+pub fn duckdb_query_tables(con: &duckdb::Connection) -> Result<Vec<db::TableInfo>, String> {
+    duckdb_query_tables_in_database(con, "main", "main")
+}
+
+pub fn duckdb_query_tables_in_database(
+    con: &duckdb::Connection,
+    database: &str,
+    schema: &str,
+) -> Result<Vec<db::TableInfo>, String> {
+    duckdb_query_tables_in_database_with_attached(con, database, schema, &[])
+}
+
+pub fn duckdb_query_tables_in_database_with_attached(
+    con: &duckdb::Connection,
+    database: &str,
+    schema: &str,
+    attached_names: &[String],
+) -> Result<Vec<db::TableInfo>, String> {
+    let database = duckdb_catalog_name(con, database, attached_names)?;
+    let mut stmt = con.prepare(
+        "SELECT table_name, table_type FROM information_schema.tables WHERE table_catalog = ? AND table_schema = ? ORDER BY table_name"
+    ).map_err(|e| e.to_string())?;
+    let rows = stmt
+        .query_map((database.as_str(), schema), |row| {
+            Ok(db::TableInfo {
+                name: row.get::<_, String>(0)?,
+                table_type: row.get::<_, String>(1)?,
+                comment: None,
+                parent_schema: None,
+                parent_name: None,
+            })
+        })
+        .map_err(|e| e.to_string())?;
+    Ok(rows.filter_map(|r| r.ok()).collect())
+}
+
+pub fn duckdb_attach_database(con: &duckdb::Connection, name: &str, path: &str) -> Result<(), String> {
+    let name = name.trim();
+    let path = path.trim();
+    if name.is_empty() || path.is_empty() {
+        return Err("DuckDB attached database name and path are required".to_string());
+    }
+    let sql = format!("ATTACH {} AS {}", duckdb_quote_string(path), duckdb_quote_ident(name));
+    con.execute_batch(&sql).map_err(|e| e.to_string())
+}
+
+pub fn duckdb_list_databases(con: &duckdb::Connection) -> Result<Vec<db::DatabaseInfo>, String> {
+    duckdb_list_databases_with_attached(con, &[])
+}
+
+pub fn duckdb_list_databases_with_attached(
+    con: &duckdb::Connection,
+    attached_names: &[String],
+) -> Result<Vec<db::DatabaseInfo>, String> {
+    let primary = duckdb_primary_catalog(con, attached_names)?;
+    let mut stmt = con.prepare("SHOW DATABASES").map_err(|e| e.to_string())?;
+    let rows = stmt
+        .query_map([], |row| {
+            let name = row.get::<_, String>(0)?;
+            Ok(db::DatabaseInfo { name: if name == primary { "main".to_string() } else { name } })
+        })
+        .map_err(|e| e.to_string())?;
+    Ok(rows.filter_map(|row| row.ok()).collect())
+}
+
+pub fn duckdb_list_schemas(con: &duckdb::Connection, database: &str) -> Result<Vec<String>, String> {
+    duckdb_list_schemas_with_attached(con, database, &[])
+}
+
+pub fn duckdb_list_schemas_with_attached(
+    con: &duckdb::Connection,
+    database: &str,
+    attached_names: &[String],
+) -> Result<Vec<String>, String> {
+    let database = duckdb_catalog_name(con, database, attached_names)?;
+    let mut stmt = con
+        .prepare(
+            "SELECT schema_name FROM information_schema.schemata WHERE catalog_name = ? AND schema_name NOT IN ('information_schema', 'pg_catalog') ORDER BY schema_name",
+        )
+        .map_err(|e| e.to_string())?;
+    let rows = stmt.query_map([database.as_str()], |row| row.get::<_, String>(0)).map_err(|e| e.to_string())?;
+    Ok(rows.filter_map(|r| r.ok()).collect())
+}
+
+fn duckdb_catalog_name(con: &duckdb::Connection, database: &str, attached_names: &[String]) -> Result<String, String> {
+    if database.trim().is_empty() || database == "main" {
+        return duckdb_primary_catalog(con, attached_names);
+    }
+    Ok(database.to_string())
+}
+
+pub fn duckdb_primary_catalog(con: &duckdb::Connection, attached_names: &[String]) -> Result<String, String> {
+    if attached_names.is_empty() {
+        return duckdb_current_database(con);
+    }
+    let attached: std::collections::HashSet<String> = attached_names.iter().map(|name| name.to_lowercase()).collect();
+    let mut stmt = con.prepare("SHOW DATABASES").map_err(|e| e.to_string())?;
+    let rows = stmt.query_map([], |row| row.get::<_, String>(0)).map_err(|e| e.to_string())?;
+    for row in rows {
+        let name = row.map_err(|e| e.to_string())?;
+        if !attached.contains(&name.to_lowercase()) {
+            return Ok(name);
+        }
+    }
+    duckdb_current_database(con)
+}
+
+fn duckdb_current_database(con: &duckdb::Connection) -> Result<String, String> {
+    con.query_row("SELECT current_database()", [], |row| row.get::<_, String>(0)).map_err(|e| e.to_string())
+}
+
+fn duckdb_quote_ident(value: &str) -> String {
+    format!("\"{}\"", value.replace('"', "\"\""))
+}
+
+fn duckdb_quote_string(value: &str) -> String {
+    format!("'{}'", value.replace('\'', "''"))
+}
+
+pub fn duckdb_query_columns(con: &duckdb::Connection, table: &str) -> Result<Vec<db::ColumnInfo>, String> {
+    duckdb_query_columns_in_database(con, "main", "main", table)
+}
+
+pub fn duckdb_query_columns_in_database(
+    con: &duckdb::Connection,
+    database: &str,
+    schema: &str,
+    table: &str,
+) -> Result<Vec<db::ColumnInfo>, String> {
+    duckdb_query_columns_in_database_with_attached(con, database, schema, table, &[])
+}
+
+pub fn duckdb_query_columns_in_database_with_attached(
+    con: &duckdb::Connection,
+    database: &str,
+    schema: &str,
+    table: &str,
+    attached_names: &[String],
+) -> Result<Vec<db::ColumnInfo>, String> {
+    let database = duckdb_catalog_name(con, database, attached_names)?;
+    let mut pk_stmt = con
+        .prepare(
+            "SELECT kcu.column_name
+         FROM information_schema.table_constraints tc
+         JOIN information_schema.key_column_usage kcu
+           ON tc.constraint_name = kcu.constraint_name
+          AND tc.table_schema = kcu.table_schema
+          AND tc.table_name = kcu.table_name
+         WHERE tc.constraint_type = 'PRIMARY KEY'
+           AND tc.table_catalog = ?
+           AND tc.table_schema = ?
+           AND tc.table_name = ?
+         ORDER BY kcu.ordinal_position",
+        )
+        .map_err(|e| e.to_string())?;
+    let pk_rows = pk_stmt
+        .query_map((database.as_str(), schema, table), |row| row.get::<_, String>(0))
+        .map_err(|e| e.to_string())?;
+    let primary_keys: std::collections::HashSet<String> = pk_rows.filter_map(|r| r.ok()).collect();
+
+    let mut stmt = con
+        .prepare(
+            "SELECT column_name, data_type, is_nullable, column_default
+         FROM information_schema.columns
+         WHERE table_catalog = ? AND table_schema = ? AND table_name = ?
+         ORDER BY ordinal_position",
+        )
+        .map_err(|e| e.to_string())?;
+    let rows = stmt
+        .query_map((database.as_str(), schema, table), |row| {
+            let name = row.get::<_, String>(0)?;
+            Ok(db::ColumnInfo {
+                is_primary_key: primary_keys.contains(&name),
+                name,
+                data_type: row.get::<_, String>(1)?,
+                is_nullable: row.get::<_, String>(2).unwrap_or_default() == "YES",
+                column_default: row.get::<_, Option<String>>(3)?,
+                extra: None,
+                comment: None,
+                numeric_precision: None,
+                numeric_scale: None,
+                character_maximum_length: None,
+            })
+        })
+        .map_err(|e| e.to_string())?;
+    Ok(rows.filter_map(|r| r.ok()).collect())
+}
+
+async fn duckdb_attached_database_names(state: &AppState, connection_id: &str) -> Vec<String> {
+    state
+        .configs
+        .read()
+        .await
+        .get(connection_id)
+        .map(|config| config.attached_databases.iter().map(|database| database.name.clone()).collect())
+        .unwrap_or_default()
+}
+
 fn clickhouse_metadata_database<'a>(database: &'a str, schema: &'a str) -> &'a str {
     if database.is_empty() {
         schema
@@ -85,10 +274,6 @@ async fn list_databases_once(state: &AppState, connection_id: &str) -> Result<Ve
             drop(connections);
             return db::clickhouse_driver::list_databases(&client).await;
         }
-        if let Some(client) = extract_pool!(&connections, connection_id, InfluxDb) {
-            drop(connections);
-            return db::influxdb_driver::list_databases(&client).await;
-        }
         try_sqlserver!(connections, connection_id, list_databases);
         if let Some(client) = extract_pool!(&connections, connection_id, Agent) {
             let is_mongo =
@@ -104,19 +289,25 @@ async fn list_databases_once(state: &AppState, connection_id: &str) -> Result<Ve
         }
     }
 
-    #[cfg(feature = "duckdb-bundled")]
     let duckdb_attached_names = duckdb_attached_database_names(state, connection_id).await;
     let db_config = connection_config(state, connection_id).await;
     let connections = state.connections.read().await;
     let pool = connections.get(connection_id).ok_or("Connection not found")?;
 
-    #[cfg(feature = "duckdb-bundled")]
-    if let PoolKind::DuckDb(con) = pool {
-        let con = con.lock().map_err(|e| e.to_string())?;
-        return duckdb_list_databases_with_attached(&con, &duckdb_attached_names);
+    match pool {
+        PoolKind::Mysql(p, _) if db_config.as_ref().is_some_and(is_doris_family_config) => {
+            db::mysql::list_databases_show(p).await
+        }
+        PoolKind::Mysql(p, mode) => dispatch_mysql!(p, mode, db::mysql::list_databases, db::ob_oracle::list_databases),
+        PoolKind::Postgres(p) => db::postgres::list_databases(p).await,
+        PoolKind::Sqlite(p) => db::sqlite::list_databases(p).await,
+        PoolKind::Rqlite(client) => db::rqlite_driver::list_databases(client).await,
+        PoolKind::DuckDb(con) => {
+            let con = con.lock().map_err(|e| e.to_string())?;
+            duckdb_list_databases_with_attached(&con, &duckdb_attached_names)
+        }
+        _ => Ok(vec![]),
     }
-
-    providers::native::list_databases(pool, db_config.as_ref()).await
 }
 
 pub async fn list_schemas_core(state: &AppState, connection_id: &str, database: &str) -> Result<Vec<String>, String> {
@@ -186,14 +377,15 @@ async fn list_schemas_once(state: &AppState, connection_id: &str, database: &str
     let connections = state.connections.read().await;
     let pool = connections.get(&pool_key).ok_or("Pool not found")?;
 
-    #[cfg(feature = "duckdb-bundled")]
-    if let PoolKind::DuckDb(con) = pool {
-        let duckdb_attached_names = duckdb_attached_database_names(state, connection_id).await;
-        let con = con.lock().map_err(|e| e.to_string())?;
-        return duckdb_list_schemas_with_attached(&con, database, &duckdb_attached_names);
+    match pool {
+        PoolKind::Postgres(p) => db::postgres::list_schemas(p).await,
+        PoolKind::DuckDb(con) => {
+            let duckdb_attached_names = duckdb_attached_database_names(state, connection_id).await;
+            let con = con.lock().map_err(|e| e.to_string())?;
+            duckdb_list_schemas_with_attached(&con, database, &duckdb_attached_names)
+        }
+        _ => Ok(vec![]),
     }
-
-    providers::native::list_schemas(pool).await
 }
 
 pub async fn list_tables_core(
@@ -219,13 +411,11 @@ async fn list_tables_once(
     limit: Option<usize>,
 ) -> Result<Vec<db::TableInfo>, String> {
     let pool_key = state.get_or_create_pool(connection_id, Some(database)).await?;
-    #[cfg(feature = "duckdb-bundled")]
     let duckdb_attached_names = duckdb_attached_database_names(state, connection_id).await;
     let db_config = connection_config(state, connection_id).await;
 
     {
         let connections = state.connections.read().await;
-        #[cfg(feature = "duckdb-bundled")]
         if let Some(ext_pool) = extract_pool!(&connections, &pool_key, ExternalTabular) {
             drop(connections);
             let cache = ext_pool.cache.clone();
@@ -247,7 +437,6 @@ async fn list_tables_once(
                 )
                 .await;
         }
-        #[cfg(feature = "duckdb-bundled")]
         if let Some(con) = extract_pool!(&connections, &pool_key, DuckDb) {
             drop(connections);
             let con = con.lock().map_err(|e| e.to_string())?;
@@ -257,30 +446,22 @@ async fn list_tables_once(
             drop(connections);
             return db::clickhouse_driver::list_tables(&client, clickhouse_metadata_database(database, schema)).await;
         }
-        if let Some(client) = extract_pool!(&connections, &pool_key, InfluxDb) {
-            drop(connections);
-            return db::influxdb_driver::list_tables(&client, database).await;
-        }
         try_sqlserver!(connections, &pool_key, list_tables, schema, filter, limit);
         if let Some(client) = extract_pool!(&connections, &pool_key, Agent) {
             let fallback_config = db_config.clone();
             drop(connections);
             let mut client = client.lock().await;
             match client.list_tables::<Vec<db::TableInfo>>(database, schema).await {
-                Ok(tables) if !tables.is_empty() => {
-                    return Ok(filter_table_infos_for_config(tables, filter, limit, db_config.as_ref()))
-                }
+                Ok(tables) if !tables.is_empty() => return Ok(filter_table_infos(tables, filter, limit)),
                 Ok(tables) => {
                     if let Some(config) = fallback_config.as_ref() {
                         match native_postgres_metadata_pool(state, connection_id, database, config).await {
                             Ok(Some(pool)) => {
-                                return db::postgres::list_tables(&pool, schema).await.map(|tables| {
-                                    filter_table_infos_for_config(tables, filter, limit, db_config.as_ref())
-                                });
-                            }
-                            Ok(None) => {
-                                return Ok(filter_table_infos_for_config(tables, filter, limit, db_config.as_ref()))
+                                return db::postgres::list_tables(&pool, schema)
+                                    .await
+                                    .map(|tables| filter_table_infos(tables, filter, limit));
                             }
+                            Ok(None) => return Ok(filter_table_infos(tables, filter, limit)),
                             Err(error) => {
                                 log::warn!(
                                     "[schema][agent:list_tables:fallback-failed] connection_id={} database={} schema={} error={}",
@@ -292,7 +473,7 @@ async fn list_tables_once(
                             }
                         }
                     }
-                    return Ok(filter_table_infos_for_config(tables, filter, limit, db_config.as_ref()));
+                    return Ok(filter_table_infos(tables, filter, limit));
                 }
                 Err(agent_error) => {
                     if let Some(config) = fallback_config.as_ref() {
@@ -301,7 +482,7 @@ async fn list_tables_once(
                         {
                             return db::postgres::list_tables(&pool, schema)
                                 .await
-                                .map(|tables| filter_table_infos_for_config(tables, filter, limit, db_config.as_ref()))
+                                .map(|tables| filter_table_infos(tables, filter, limit))
                                 .map_err(|fallback_error| {
                                     format!(
                                         "{agent_error}\n\nNative PostgreSQL metadata fallback failed: {fallback_error}"
@@ -318,17 +499,80 @@ async fn list_tables_once(
     let connections = state.connections.read().await;
     let pool = connections.get(&pool_key).ok_or("Pool not found")?;
 
-    providers::native::list_tables(pool, db_config.as_ref(), database, schema)
-        .await
-        .map(|tables| filter_table_infos_for_config(tables, filter, limit, db_config.as_ref()))
+    match pool {
+        PoolKind::Mysql(p, _) if db_config.as_ref().is_some_and(is_doris_family_config) => {
+            db::mysql::list_tables_show(p, database).await.map(|tables| filter_table_infos(tables, filter, limit))
+        }
+        PoolKind::Mysql(p, mode) => {
+            dispatch_mysql!(p, mode, db::mysql::list_tables, db::ob_oracle::list_tables, schema)
+                .map(|tables| filter_table_infos(tables, filter, limit))
+        }
+        PoolKind::Postgres(p) => {
+            db::postgres::list_tables(p, schema).await.map(|tables| filter_table_infos(tables, filter, limit))
+        }
+        PoolKind::Sqlite(p) => {
+            db::sqlite::list_tables(p, schema).await.map(|tables| filter_table_infos(tables, filter, limit))
+        }
+        PoolKind::Rqlite(client) => {
+            db::rqlite_driver::list_tables(client, schema).await.map(|tables| filter_table_infos(tables, filter, limit))
+        }
+        PoolKind::MongoDb(client) => db::mongo_driver::list_collections(client, database)
+            .await
+            .map(|names| collection_names_to_tables(names, "COLLECTION"))
+            .map(|tables| filter_table_infos(tables, filter, limit)),
+        PoolKind::Elasticsearch(client) => db::elasticsearch_driver::list_indices(client)
+            .await
+            .map(|names| collection_names_to_tables(names, "INDEX"))
+            .map(|tables| filter_table_infos(tables, filter, limit)),
+        _ => Ok(vec![]),
+    }
+}
+
+fn collection_names_to_tables(names: Vec<String>, table_type: &str) -> Vec<db::TableInfo> {
+    names
+        .into_iter()
+        .map(|name| db::TableInfo {
+            name,
+            table_type: table_type.to_string(),
+            comment: None,
+            parent_schema: None,
+            parent_name: None,
+        })
+        .collect()
+}
+
+fn filter_table_infos(tables: Vec<db::TableInfo>, filter: Option<&str>, limit: Option<usize>) -> Vec<db::TableInfo> {
+    let filter = filter.unwrap_or("").to_lowercase();
+    let limit = limit.unwrap_or(usize::MAX);
+    tables
+        .into_iter()
+        .filter(|table| filter.is_empty() || table.name.to_lowercase().contains(&filter))
+        .take(limit)
+        .collect()
 }
 
 #[cfg(test)]
 mod tests {
-    use super::{clickhouse_metadata_database, is_agent_postgres_metadata_fallback_config};
-    #[cfg(feature = "duckdb-bundled")]
-    use super::{duckdb_attach_database, duckdb_list_databases, duckdb_query_tables_in_database};
-    use crate::models::connection::{default_redis_key_separator, ConnectionConfig, DatabaseType};
+    use super::{
+        clickhouse_metadata_database, deduplicate_column_infos, duckdb_attach_database, duckdb_list_databases,
+        duckdb_query_tables_in_database, is_agent_postgres_metadata_fallback_config,
+    };
+    use crate::models::connection::{ConnectionConfig, DatabaseType};
+
+    fn test_column(name: &str, comment: Option<&str>, is_primary_key: bool) -> super::db::ColumnInfo {
+        super::db::ColumnInfo {
+            name: name.to_string(),
+            data_type: "VARCHAR".to_string(),
+            is_nullable: true,
+            column_default: None,
+            is_primary_key,
+            extra: None,
+            comment: comment.map(|value| value.to_string()),
+            numeric_precision: None,
+            numeric_scale: None,
+            character_maximum_length: None,
+        }
+    }
 
     fn test_connection_config(db_type: DatabaseType) -> ConnectionConfig {
         ConnectionConfig {
@@ -364,7 +608,7 @@ mod tests {
             redis_sentinel_password: String::new(),
             redis_sentinel_tls: false,
             redis_cluster_nodes: String::new(),
-            redis_key_separator: default_redis_key_separator(),
+            redis_key_separator: crate::models::connection::default_redis_key_separator(),
             etcd_endpoints: String::new(),
             external_config: None,
             jdbc_driver_class: None,
@@ -374,7 +618,6 @@ mod tests {
         }
     }
 
-    #[cfg(feature = "duckdb-bundled")]
     #[test]
     fn duckdb_list_databases_includes_attached_database() {
         let unique = uuid::Uuid::new_v4();
@@ -391,7 +634,6 @@ mod tests {
         let _ = std::fs::remove_file(path);
     }
 
-    #[cfg(feature = "duckdb-bundled")]
     #[test]
     fn duckdb_query_tables_filters_by_attached_database() {
         let unique = uuid::Uuid::new_v4();
@@ -421,6 +663,23 @@ mod tests {
         assert_eq!(clickhouse_metadata_database("default", "testdb"), "default");
     }
 
+    #[test]
+    fn deduplicates_columns_and_preserves_later_comment() {
+        let columns = deduplicate_column_infos(vec![
+            test_column("ID", None, false),
+            test_column("ID", Some("源主键"), true),
+            test_column("TFBH", Some(""), false),
+            test_column("TFBH", Some("台账编号"), false),
+        ]);
+
+        assert_eq!(columns.len(), 2);
+        assert_eq!(columns[0].name, "ID");
+        assert_eq!(columns[0].comment.as_deref(), Some("源主键"));
+        assert!(columns[0].is_primary_key);
+        assert_eq!(columns[1].name, "TFBH");
+        assert_eq!(columns[1].comment.as_deref(), Some("台账编号"));
+    }
+
     #[test]
     fn postgres_like_agent_metadata_fallback_targets_pg_compatible_agents() {
         assert!(is_agent_postgres_metadata_fallback_config(&test_connection_config(DatabaseType::Kingbase)));
@@ -436,10 +695,9 @@ pub async fn list_objects_core(
     connection_id: &str,
     database: &str,
     schema: &str,
-    object_types: Option<Vec<String>>,
 ) -> Result<Vec<db::ObjectInfo>, String> {
     retry_metadata_connection(state, connection_id, Some(database), || {
-        list_objects_once(state, connection_id, database, schema, object_types.as_deref())
+        list_objects_once(state, connection_id, database, schema)
     })
     .await
 }
@@ -461,27 +719,12 @@ async fn list_objects_once(
     connection_id: &str,
     database: &str,
     schema: &str,
-    object_types: Option<&[String]>,
-) -> Result<Vec<db::ObjectInfo>, String> {
-    let db_config = connection_config(state, connection_id).await;
-    list_objects_once_unfiltered(state, connection_id, database, schema)
-        .await
-        .map(|objects| filter_yashandb_recyclebin_objects(objects, db_config.as_ref()))
-        .map(|objects| filter_objects_by_types(objects, object_types))
-}
-
-async fn list_objects_once_unfiltered(
-    state: &AppState,
-    connection_id: &str,
-    database: &str,
-    schema: &str,
 ) -> Result<Vec<db::ObjectInfo>, String> {
     let pool_key = state.get_or_create_pool(connection_id, Some(database)).await?;
     let db_config = connection_config(state, connection_id).await;
 
     {
         let connections = state.connections.read().await;
-        #[cfg(feature = "duckdb-bundled")]
         if let Some(ext_pool) = extract_pool!(&connections, &pool_key, ExternalTabular) {
             drop(connections);
             let cache = ext_pool.cache.clone();
@@ -517,11 +760,11 @@ async fn list_objects_once_unfiltered(
         }
         try_sqlserver!(connections, &pool_key, list_objects, schema);
         if let Some(client) = extract_pool!(&connections, &pool_key, Agent) {
-            let oracle_object_options = db_config.as_ref().and_then(oracle_agent_object_options);
+            let is_oracle = db_config.as_ref().is_some_and(|config| config.db_type == DatabaseType::Oracle);
             let fallback_config = db_config.clone();
             drop(connections);
-            if let Some(options) = oracle_object_options {
-                return oracle_agent_list_objects(client, database, schema, options).await;
+            if is_oracle {
+                return oracle_agent_list_objects(client, database, schema).await;
             }
             let mut client = client.lock().await;
             match client.list_objects::<Vec<db::ObjectInfo>>(database, schema).await {
@@ -563,24 +806,36 @@ async fn list_objects_once_unfiltered(
     let connections = state.connections.read().await;
     let pool = connections.get(&pool_key).ok_or("Pool not found")?;
 
-    if let Some(objects) = providers::native::list_objects(pool, db_config.as_ref(), database, schema).await? {
-        return Ok(objects);
+    match pool {
+        PoolKind::Mysql(p, mode) => {
+            // Note: mysql and ob_oracle take different second args (database vs schema)
+            if *mode == MysqlMode::OceanBaseOracle {
+                db::ob_oracle::list_objects(p, schema).await
+            } else if db_config.as_ref().is_some_and(is_doris_family_config) {
+                db::mysql::list_table_objects_show(p, database).await
+            } else {
+                db::mysql::list_objects(p, database).await
+            }
+        }
+        PoolKind::Postgres(p) => db::postgres::list_objects(p, schema).await,
+        _ => {
+            drop(connections);
+            Ok(list_tables_core(state, connection_id, database, schema, None, None)
+                .await?
+                .into_iter()
+                .map(|table| db::ObjectInfo {
+                    name: table.name,
+                    object_type: table.table_type,
+                    schema: if schema.is_empty() { None } else { Some(schema.to_string()) },
+                    comment: table.comment,
+                    created_at: None,
+                    updated_at: None,
+                    parent_schema: table.parent_schema,
+                    parent_name: table.parent_name,
+                })
+                .collect())
+        }
     }
-    drop(connections);
-    Ok(list_tables_core(state, connection_id, database, schema, None, None)
-        .await?
-        .into_iter()
-        .map(|table| db::ObjectInfo {
-            name: table.name,
-            object_type: table.table_type,
-            schema: if schema.is_empty() { None } else { Some(schema.to_string()) },
-            comment: table.comment,
-            created_at: None,
-            updated_at: None,
-            parent_schema: table.parent_schema,
-            parent_name: table.parent_name,
-        })
-        .collect())
 }
 
 async fn list_completion_objects_once(
@@ -606,11 +861,11 @@ async fn list_completion_objects_once(
             .map(filter_completion_objects);
     }
     if let Some(client) = extract_pool!(&connections, &pool_key, Agent) {
-        let oracle_object_options = db_config.as_ref().and_then(oracle_agent_object_options);
+        let is_oracle = db_config.as_ref().is_some_and(|config| config.db_type == DatabaseType::Oracle);
         let fallback_config = db_config.clone();
         drop(connections);
-        let objects = if let Some(options) = oracle_object_options {
-            oracle_agent_list_objects(client, database, schema, options).await?
+        let objects = if is_oracle {
+            oracle_agent_list_objects(client, database, schema).await?
         } else {
             let mut client = client.lock().await;
             match client.list_objects::<Vec<db::ObjectInfo>>(database, schema).await {
@@ -656,22 +911,37 @@ async fn list_completion_objects_once(
                 }
             }
         };
-        let objects = filter_yashandb_recyclebin_objects(objects, fallback_config.as_ref());
         return Ok(filter_completion_objects(objects));
     }
 
     let pool = connections.get(&pool_key).ok_or("Pool not found")?;
-    match providers::native::list_completion_objects(pool, database, schema).await? {
-        Some(objects) => Ok(filter_completion_objects(objects)),
-        None if matches!(pool, PoolKind::SqlServer(_)) => {
+    match pool {
+        PoolKind::Mysql(p, mode) if *mode != MysqlMode::OceanBaseOracle => {
+            db::mysql::list_completion_objects(p, database).await
+        }
+        PoolKind::Mysql(p, mode) if *mode == MysqlMode::OceanBaseOracle => {
+            db::ob_oracle::list_objects(p, schema).await.map(filter_completion_objects)
+        }
+        PoolKind::Postgres(p) => db::postgres::list_objects(p, schema).await.map(filter_completion_objects),
+        PoolKind::SqlServer(_) => {
             drop(connections);
-            let objects = list_objects_once(state, connection_id, database, schema, None).await?;
+            let objects = list_objects_once(state, connection_id, database, schema).await?;
             Ok(filter_completion_objects(objects))
         }
-        None => Ok(Vec::new()),
+        _ => Ok(Vec::new()),
     }
 }
 
+fn filter_completion_objects(objects: Vec<db::ObjectInfo>) -> Vec<db::ObjectInfo> {
+    objects
+        .into_iter()
+        .filter(|object| {
+            let object_type = object.object_type.to_ascii_uppercase();
+            object_type.contains("PROCEDURE") || object_type.contains("FUNCTION") || object_type.contains("TRIGGER")
+        })
+        .collect()
+}
+
 fn is_agent_postgres_metadata_fallback_config(config: &ConnectionConfig) -> bool {
     matches!(config.db_type, DatabaseType::Kingbase | DatabaseType::Highgo | DatabaseType::Vastbase)
 }
@@ -722,13 +992,11 @@ pub async fn get_columns_core(
     table: &str,
 ) -> Result<Vec<db::ColumnInfo>, String> {
     let pool_key = state.get_or_create_pool(connection_id, Some(database)).await?;
-    #[cfg(feature = "duckdb-bundled")]
     let duckdb_attached_names = duckdb_attached_database_names(state, connection_id).await;
     let db_config = connection_config(state, connection_id).await;
 
     {
         let connections = state.connections.read().await;
-        #[cfg(feature = "duckdb-bundled")]
         if let Some(ext_pool) = extract_pool!(&connections, &pool_key, ExternalTabular) {
             drop(connections);
             let cache = ext_pool.cache.clone();
@@ -757,7 +1025,6 @@ pub async fn get_columns_core(
                 .await?;
             return Ok(deduplicate_column_infos(columns));
         }
-        #[cfg(feature = "duckdb-bundled")]
         if let Some(con) = extract_pool!(&connections, &pool_key, DuckDb) {
             drop(connections);
             let con = con.lock().map_err(|e| e.to_string())?;
@@ -775,10 +1042,6 @@ pub async fn get_columns_core(
                 .await
                 .map(deduplicate_column_infos);
         }
-        if let Some(client) = extract_pool!(&connections, &pool_key, InfluxDb) {
-            drop(connections);
-            return db::influxdb_driver::get_columns(&client, database, table).await.map(deduplicate_column_infos);
-        }
         try_sqlserver!(connections, &pool_key, get_columns, schema, table);
         if let Some(client) = extract_pool!(&connections, &pool_key, Agent) {
             let fallback_config = db_config.clone();
@@ -833,9 +1096,64 @@ pub async fn get_columns_core(
     let connections = state.connections.read().await;
     let pool = connections.get(&pool_key).ok_or("Pool not found")?;
 
-    providers::native::get_columns(pool, db_config.as_ref(), database, schema, table)
-        .await
-        .map(deduplicate_column_infos)
+    match pool {
+        PoolKind::Mysql(p, _) if db_config.as_ref().is_some_and(is_doris_family_config) => {
+            db::mysql::get_columns_show(p, database, table).await.map(deduplicate_column_infos)
+        }
+        PoolKind::Mysql(p, mode) => {
+            dispatch_mysql!(p, mode, db::mysql::get_columns, db::ob_oracle::get_columns, database, table)
+                .map(deduplicate_column_infos)
+        }
+        PoolKind::Postgres(p) => db::postgres::get_columns(p, schema, table).await.map(deduplicate_column_infos),
+        PoolKind::Sqlite(p) => db::sqlite::get_columns(p, schema, table).await.map(deduplicate_column_infos),
+        PoolKind::Rqlite(client) => {
+            db::rqlite_driver::get_columns(client, schema, table).await.map(deduplicate_column_infos)
+        }
+        _ => Ok(vec![]),
+    }
+}
+
+fn deduplicate_column_infos(columns: Vec<db::ColumnInfo>) -> Vec<db::ColumnInfo> {
+    let mut result: Vec<db::ColumnInfo> = Vec::with_capacity(columns.len());
+    for column in columns {
+        if let Some(existing) = result.iter_mut().find(|existing| existing.name == column.name) {
+            existing.is_primary_key |= column.is_primary_key;
+            existing.is_nullable &= column.is_nullable;
+            merge_optional_string(&mut existing.column_default, column.column_default);
+            merge_optional_string(&mut existing.extra, column.extra);
+            merge_optional_string(&mut existing.comment, column.comment);
+            if existing.numeric_precision.is_none() {
+                existing.numeric_precision = column.numeric_precision;
+            }
+            if existing.numeric_scale.is_none() {
+                existing.numeric_scale = column.numeric_scale;
+            }
+            if existing.character_maximum_length.is_none() {
+                existing.character_maximum_length = column.character_maximum_length;
+            }
+            if existing.data_type.trim().is_empty() && !column.data_type.trim().is_empty() {
+                existing.data_type = column.data_type;
+            }
+        } else {
+            result.push(column);
+        }
+    }
+    result
+}
+
+fn merge_optional_string(target: &mut Option<String>, candidate: Option<String>) {
+    let Some(candidate) = candidate else {
+        return;
+    };
+    if candidate.trim().is_empty() {
+        if target.is_none() {
+            *target = Some(candidate);
+        }
+        return;
+    }
+    if target.as_ref().map_or(true, |value| value.trim().is_empty()) {
+        *target = Some(candidate);
+    }
 }
 
 pub async fn list_indexes_core(
@@ -856,7 +1174,15 @@ pub async fn list_indexes_core(
     let connections = state.connections.read().await;
     let pool = connections.get(&pool_key).ok_or("Pool not found")?;
 
-    providers::native::list_indexes(pool, database, schema, table).await
+    match pool {
+        PoolKind::Mysql(p, mode) => {
+            dispatch_mysql!(p, mode, db::mysql::list_indexes, db::ob_oracle::list_indexes, schema, table)
+        }
+        PoolKind::Postgres(p) => db::postgres::list_indexes(p, schema, table).await,
+        PoolKind::Sqlite(p) => db::sqlite::list_indexes(p, schema, table).await,
+        PoolKind::Rqlite(client) => db::rqlite_driver::list_indexes(client, schema, table).await,
+        _ => Ok(vec![]),
+    }
 }
 
 pub async fn list_foreign_keys_core(
@@ -877,7 +1203,15 @@ pub async fn list_foreign_keys_core(
     let connections = state.connections.read().await;
     let pool = connections.get(&pool_key).ok_or("Pool not found")?;
 
-    providers::native::list_foreign_keys(pool, schema, table).await
+    match pool {
+        PoolKind::Mysql(p, mode) => {
+            dispatch_mysql!(p, mode, db::mysql::list_foreign_keys, db::ob_oracle::list_foreign_keys, schema, table)
+        }
+        PoolKind::Postgres(p) => db::postgres::list_foreign_keys(p, schema, table).await,
+        PoolKind::Sqlite(p) => db::sqlite::list_foreign_keys(p, schema, table).await,
+        PoolKind::Rqlite(client) => db::rqlite_driver::list_foreign_keys(client, schema, table).await,
+        _ => Ok(vec![]),
+    }
 }
 
 pub async fn list_triggers_core(
@@ -898,7 +1232,80 @@ pub async fn list_triggers_core(
     let connections = state.connections.read().await;
     let pool = connections.get(&pool_key).ok_or("Pool not found")?;
 
-    providers::native::list_triggers(pool, schema, table).await
+    match pool {
+        PoolKind::Mysql(p, mode) => {
+            dispatch_mysql!(p, mode, db::mysql::list_triggers, db::ob_oracle::list_triggers, schema, table)
+        }
+        PoolKind::Postgres(p) => db::postgres::list_triggers(p, schema, table).await,
+        PoolKind::Sqlite(p) => db::sqlite::list_triggers(p, schema, table).await,
+        PoolKind::Rqlite(client) => db::rqlite_driver::list_triggers(client, schema, table).await,
+        _ => Ok(vec![]),
+    }
+}
+
+pub async fn list_functions_core(
+    state: &AppState,
+    connection_id: &str,
+    database: &str,
+    schema: &str,
+) -> Result<Vec<db::FunctionInfo>, String> {
+    let pool_key = state.get_or_create_pool(connection_id, Some(database)).await?;
+    let connections = state.connections.read().await;
+    let pool = connections.get(&pool_key).ok_or("Pool not found")?;
+
+    match pool {
+        PoolKind::Postgres(p) => db::postgres::list_functions(p, schema).await,
+        _ => Ok(vec![]),
+    }
+}
+
+pub async fn list_sequences_core(
+    state: &AppState,
+    connection_id: &str,
+    database: &str,
+    schema: &str,
+    with_last_values: bool,
+) -> Result<Vec<db::SequenceInfo>, String> {
+    let pool_key = state.get_or_create_pool(connection_id, Some(database)).await?;
+    let connections = state.connections.read().await;
+    let pool = connections.get(&pool_key).ok_or("Pool not found")?;
+
+    match pool {
+        PoolKind::Postgres(p) => db::postgres::list_sequences(p, schema, with_last_values).await,
+        _ => Ok(vec![]),
+    }
+}
+
+pub async fn list_rules_core(
+    state: &AppState,
+    connection_id: &str,
+    database: &str,
+    schema: &str,
+) -> Result<Vec<db::RuleInfo>, String> {
+    let pool_key = state.get_or_create_pool(connection_id, Some(database)).await?;
+    let connections = state.connections.read().await;
+    let pool = connections.get(&pool_key).ok_or("Pool not found")?;
+
+    match pool {
+        PoolKind::Postgres(p) => db::postgres::list_rules(p, schema).await,
+        _ => Ok(vec![]),
+    }
+}
+
+pub async fn list_owners_core(
+    state: &AppState,
+    connection_id: &str,
+    database: &str,
+    schema: &str,
+) -> Result<Vec<db::OwnerInfo>, String> {
+    let pool_key = state.get_or_create_pool(connection_id, Some(database)).await?;
+    let connections = state.connections.read().await;
+    let pool = connections.get(&pool_key).ok_or("Pool not found")?;
+
+    match pool {
+        PoolKind::Postgres(p) => db::postgres::list_owners(p, schema).await,
+        _ => Ok(vec![]),
+    }
 }
 
 pub async fn get_table_ddl_core(
@@ -912,7 +1319,6 @@ pub async fn get_table_ddl_core(
 
     {
         let connections = state.connections.read().await;
-        #[cfg(feature = "duckdb-bundled")]
         if let Some(con) = extract_pool!(&connections, &pool_key, DuckDb) {
             drop(connections);
             let tbl = table.replace('\'', "''");
@@ -955,13 +1361,35 @@ pub async fn get_table_ddl_core(
     let pool = connections.get(&pool_key).ok_or("Pool not found")?;
     let db_config = connection_config(state, connection_id).await;
 
-    providers::native::table_ddl(pool, db_config.as_ref(), schema, table).await
+    match pool {
+        PoolKind::Mysql(p, _) => mysql_ddl(p, table).await,
+        PoolKind::Postgres(p) if db_config.as_ref().is_some_and(is_opengauss_family_config) => {
+            match opengauss_table_ddl(p, schema, table).await {
+                Ok(ddl) => Ok(ddl),
+                Err(_) => pg_ddl(p, schema, table).await,
+            }
+        }
+        PoolKind::Postgres(p) => pg_ddl(p, schema, table).await,
+        PoolKind::Sqlite(p) => sqlite_ddl(p, table).await,
+        PoolKind::Rqlite(client) => db::rqlite_driver::table_ddl(client, table).await,
+        _ => Err("DDL not supported for this database type".to_string()),
+    }
 }
 
 async fn connection_config(state: &AppState, connection_id: &str) -> Option<ConnectionConfig> {
     state.configs.read().await.get(connection_id).cloned()
 }
 
+fn is_opengauss_family_config(config: &ConnectionConfig) -> bool {
+    matches!(config.db_type, DatabaseType::OpenGauss | DatabaseType::Gaussdb)
+        || matches!(config.driver_profile.as_deref(), Some("opengauss" | "gaussdb"))
+}
+
+fn is_doris_family_config(config: &ConnectionConfig) -> bool {
+    matches!(config.db_type, DatabaseType::Doris | DatabaseType::StarRocks)
+        || matches!(config.driver_profile.as_deref(), Some("doris" | "selectdb" | "starrocks"))
+}
+
 fn sql_string(value: &str) -> String {
     format!("'{}'", value.replace('\'', "''"))
 }
@@ -1060,19 +1488,6 @@ pub fn postgres_object_source_sql(schema: &str, name: &str, kind: &db::ObjectSou
     }
 }
 
-pub fn postgres_routine_object_source_legacy_sql(schema: &str, name: &str) -> String {
-    format!(
-        "SELECT pg_get_functiondef(p.oid) \
-         FROM pg_proc p \
-         JOIN pg_namespace n ON n.oid = p.pronamespace \
-         WHERE n.nspname = {} AND p.proname = {} \
-         AND NOT p.proisagg AND NOT p.proiswindow \
-         ORDER BY p.oid LIMIT 1",
-        sql_string(schema),
-        sql_string(name)
-    )
-}
-
 pub fn oracle_object_source_sql(schema: &str, name: &str, kind: &db::ObjectSourceKind) -> String {
     let object_type = match kind {
         db::ObjectSourceKind::View => "VIEW",
@@ -1204,11 +1619,25 @@ pub async fn get_object_source_core(
                 return Ok(result);
             }
         } else {
-            let pool = connections.get(&pool_key).ok_or("Pool not found")?;
-            if let Some(source) = providers::native::object_source(pool, database, schema, name, &object_type).await? {
-                source
-            } else {
-                return Err("Object source is not supported for this database type".to_string());
+            match connections.get(&pool_key).ok_or("Pool not found")? {
+                PoolKind::Mysql(pool, _) => mysql_object_source(pool, name, &object_type).await?,
+                PoolKind::Postgres(pool) => postgres_object_source(pool, schema, name, &object_type).await?,
+                PoolKind::Sqlite(pool) => first_string_cell(
+                    db::sqlite::execute_query(pool, &sqlite_object_source_sql(name, &object_type)).await?,
+                )?,
+                PoolKind::Rqlite(client) => {
+                    return db::rqlite_driver::object_source(client, name, &object_type).await;
+                }
+                PoolKind::ClickHouse(client) if matches!(object_type, db::ObjectSourceKind::View) => {
+                    let result = db::clickhouse_driver::execute_query(
+                        client,
+                        database,
+                        &format!("SHOW CREATE TABLE {}", mysql_ident(name)),
+                    )
+                    .await?;
+                    first_string_cell(result)?
+                }
+                _ => return Err("Object source is not supported for this database type".to_string()),
             }
         }
     };
@@ -1230,28 +1659,13 @@ fn oracle_owner_filter(schema: &str) -> String {
     }
 }
 
-#[derive(Debug, Clone, Copy)]
-struct OracleAgentObjectOptions {
-    hide_recyclebin_objects: bool,
-}
-
-fn oracle_agent_object_options(config: &ConnectionConfig) -> Option<OracleAgentObjectOptions> {
-    match config.db_type {
-        DatabaseType::Oracle => Some(OracleAgentObjectOptions { hide_recyclebin_objects: false }),
-        DatabaseType::Yashandb => Some(OracleAgentObjectOptions { hide_recyclebin_objects: true }),
-        _ => None,
-    }
-}
-
-pub fn oracle_list_objects_sql(schema: &str, hide_recyclebin_objects: bool) -> String {
-    let recyclebin_filter = if hide_recyclebin_objects { " AND object_name NOT LIKE 'BIN$%'" } else { "" };
+pub fn oracle_list_objects_sql(schema: &str) -> String {
     format!(
         "SELECT object_name, CASE object_type WHEN 'PACKAGE BODY' THEN 'PACKAGE_BODY' ELSE object_type END AS object_type, owner \
          FROM all_objects \
-         WHERE owner = {} AND object_type IN ('TABLE', 'VIEW', 'PROCEDURE', 'FUNCTION', 'PACKAGE', 'PACKAGE BODY'){} \
+         WHERE owner = {} AND object_type IN ('TABLE', 'VIEW', 'PROCEDURE', 'FUNCTION', 'PACKAGE', 'PACKAGE BODY') \
          ORDER BY CASE object_type WHEN 'TABLE' THEN 0 WHEN 'VIEW' THEN 1 WHEN 'PROCEDURE' THEN 2 WHEN 'FUNCTION' THEN 3 WHEN 'PACKAGE' THEN 4 ELSE 5 END, object_name",
-        oracle_owner_filter(schema),
-        recyclebin_filter
+        oracle_owner_filter(schema)
     )
 }
 
@@ -1259,9 +1673,8 @@ async fn oracle_agent_list_objects(
     client: Arc<tokio::sync::Mutex<db::agent_driver::AgentDriverClient>>,
     database: &str,
     schema: &str,
-    options: OracleAgentObjectOptions,
 ) -> Result<Vec<db::ObjectInfo>, String> {
-    let sql = oracle_list_objects_sql(schema, options.hide_recyclebin_objects);
+    let sql = oracle_list_objects_sql(schema);
     let params = agent_execute_query_params(
         &sql,
         if database.is_empty() { None } else { Some(database) },
@@ -1326,13 +1739,6 @@ async fn postgres_object_source(
                 .and_then(first_string_cell)
                 .map_err(|fallback_err| format!("{primary_err}; fallback failed: {fallback_err}"))
         }
-        Err(primary_err) if matches!(object_type, db::ObjectSourceKind::Procedure | db::ObjectSourceKind::Function) => {
-            let fallback_sql = postgres_routine_object_source_legacy_sql(schema, name);
-            db::postgres::execute_query(pool, &fallback_sql)
-                .await
-                .and_then(first_string_cell)
-                .map_err(|fallback_err| format!("{primary_err}; fallback failed: {fallback_err}"))
-        }
         Err(err) => Err(err),
     }
 }
@@ -1362,35 +1768,6 @@ mod object_source_tests {
         );
     }
 
-    #[test]
-    fn builds_postgres_legacy_routine_source_sql_without_prokind() {
-        let sql = postgres_routine_object_source_legacy_sql("public", "recalc_score");
-
-        assert!(sql.contains("pg_get_functiondef(p.oid)"));
-        assert!(sql.contains("NOT p.proisagg"));
-        assert!(sql.contains("NOT p.proiswindow"));
-        assert!(!sql.contains("p.prokind"));
-    }
-
-    #[test]
-    fn builds_postgres_object_source_sql_for_sequences() {
-        let sql = postgres_object_source_sql("tenant's schema", "order id seq", &ObjectSourceKind::Sequence);
-
-        assert!(sql.contains("-- auto-generated definition"));
-        assert!(sql.contains("create sequence"));
-        assert!(sql.contains("alter sequence"));
-        assert!(sql.contains("owner to"));
-        assert!(sql.contains("owned by"));
-        assert!(sql.contains("pg_catalog.pg_sequence"));
-        assert!(sql.contains("n.nspname = 'tenant''s schema'"));
-        assert!(sql.contains("c.relname = 'order id seq'"));
-        assert!(sql.contains("c.relkind = 'S'"));
-        assert!(!sql.contains("MINVALUE"));
-        assert!(!sql.contains("START WITH"));
-        assert!(!sql.contains("CACHE"));
-        assert!(!sql.contains("NO CYCLE"));
-    }
-
     #[test]
     fn builds_postgres_view_source_sql_without_regclass_cast() {
         let sql = postgres_object_source_sql("tenant's schema", "active users", &ObjectSourceKind::View);
@@ -1428,20 +1805,12 @@ mod object_source_tests {
 
     #[test]
     fn builds_oracle_list_objects_sql_with_packages() {
-        let sql = oracle_list_objects_sql("hr", false);
+        let sql = oracle_list_objects_sql("hr");
 
         assert!(sql.contains("'PACKAGE'"));
         assert!(sql.contains("'PACKAGE BODY'"));
         assert!(sql.contains("CASE object_type WHEN 'PACKAGE BODY' THEN 'PACKAGE_BODY'"));
         assert!(sql.contains("owner = 'HR'"));
-        assert!(!sql.contains("BIN$"));
-    }
-
-    #[test]
-    fn builds_yashandb_list_objects_sql_without_recyclebin_objects() {
-        let sql = oracle_list_objects_sql("hr", true);
-
-        assert!(sql.contains("object_name NOT LIKE 'BIN$%'"));
     }
 }
 
@@ -1482,67 +1851,6 @@ mod ddl_tests {
             "SELECT pg_get_tabledef('\"tenant''s schema\".\"active users\"')"
         );
     }
-
-    #[test]
-    fn sqlserver_comment_ddl_includes_table_comment() {
-        let ddl = render_sqlserver_comment_ddl("dbo", "users", Some("User accounts table"), &[], &[]);
-
-        assert!(ddl.contains("EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'User accounts table'"));
-        assert!(ddl.contains("@level0type=N'SCHEMA', @level0name=N'dbo'"));
-        assert!(ddl.contains("@level1type=N'TABLE', @level1name=N'users'"));
-    }
-
-    #[test]
-    fn sqlserver_comment_ddl_includes_column_comments() {
-        let mut email_col = column("email", "nvarchar(255)");
-        email_col.comment = Some("User's email address".to_string());
-        let mut name_col = column("name", "nvarchar(100)");
-        name_col.comment = Some("User's display name".to_string());
-        let columns = vec![email_col, name_col];
-
-        let ddl = render_sqlserver_comment_ddl("dbo", "users", None, &columns, &[]);
-
-        assert!(ddl.contains("@level2type=N'COLUMN', @level2name=N'email'"));
-        assert!(ddl.contains("@value=N'User''s email address'"));
-        assert!(ddl.contains("@level2type=N'COLUMN', @level2name=N'name'"));
-        assert!(ddl.contains("@value=N'User''s display name'"));
-    }
-
-    #[test]
-    fn sqlserver_comment_ddl_includes_index_comments() {
-        let idx = db::IndexInfo {
-            name: "IX_users_email".to_string(),
-            columns: vec!["email".to_string()],
-            is_unique: true,
-            is_primary: false,
-            filter: None,
-            index_type: Some("NONCLUSTERED".to_string()),
-            included_columns: None,
-            comment: Some("Unique email index".to_string()),
-        };
-        let indexes = vec![idx];
-
-        let ddl = render_sqlserver_comment_ddl("dbo", "users", None, &[], &indexes);
-
-        assert!(ddl.contains("@level2type=N'INDEX', @level2name=N'IX_users_email'"));
-        assert!(ddl.contains("@value=N'Unique email index'"));
-    }
-
-    #[test]
-    fn sqlserver_comment_ddl_skips_empty_comments() {
-        let ddl = render_sqlserver_comment_ddl("dbo", "users", Some(""), &[], &[]);
-        assert!(ddl.is_empty());
-
-        let ddl = render_sqlserver_comment_ddl("dbo", "users", None, &[], &[]);
-        assert!(ddl.is_empty());
-    }
-
-    #[test]
-    fn sqlserver_comment_ddl_escapes_single_quotes() {
-        let ddl = render_sqlserver_comment_ddl("dbo", "users", Some("User's table for 'admin'"), &[], &[]);
-
-        assert!(ddl.contains("@value=N'User''s table for ''admin'''"));
-    }
 }
 
 pub async fn mysql_ddl(pool: &db::mysql::MySqlPool, table: &str) -> Result<String, String> {
@@ -1596,7 +1904,7 @@ pub async fn pg_ddl(pool: &deadpool_postgres::Pool, schema: &str, table: &str) -
     Ok(render_postgres_table_ddl(schema, table, &columns, &indexes, &fkeys))
 }
 
-fn render_postgres_table_ddl(
+pub fn render_postgres_table_ddl(
     schema: &str,
     table: &str,
     columns: &[db::ColumnInfo],
@@ -1683,7 +1991,6 @@ pub async fn build_sqlserver_ddl(
     let columns = db::sqlserver::get_columns(client, schema, table).await?;
     let indexes = db::sqlserver::list_indexes(client, schema, table).await?;
     let fkeys = db::sqlserver::list_foreign_keys(client, schema, table).await?;
-    let table_comment = db::sqlserver::get_table_comment(client, schema, table).await?;
 
     let mut ddl = format!("CREATE TABLE [{schema}].[{table}] (\n");
     let col_lines: Vec<String> = columns
@@ -1735,61 +2042,5 @@ pub async fn build_sqlserver_ddl(
             idx.name
         ));
     }
-
-    let comment_ddl = render_sqlserver_comment_ddl(schema, table, table_comment.as_deref(), &columns, &indexes);
-    if !comment_ddl.is_empty() {
-        ddl.push('\n');
-        ddl.push_str(comment_ddl.trim_end());
-    }
-
     Ok(ddl)
 }
-
-fn render_sqlserver_comment_ddl(
-    schema: &str,
-    table: &str,
-    table_comment: Option<&str>,
-    columns: &[db::ColumnInfo],
-    indexes: &[db::IndexInfo],
-) -> String {
-    let mut ddl = String::new();
-    let escaped_schema = schema.replace('\'', "''");
-    let escaped_table = table.replace('\'', "''");
-
-    if let Some(comment) = table_comment.filter(|s| !s.is_empty()) {
-        let escaped_comment = comment.replace('\'', "''");
-        ddl.push_str(&format!(
-            "EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'{escaped_comment}', \
-             @level0type=N'SCHEMA', @level0name=N'{escaped_schema}', \
-             @level1type=N'TABLE', @level1name=N'{escaped_table}';\n"
-        ));
-    }
-
-    for col in columns {
-        if let Some(comment) = col.comment.as_deref().filter(|s| !s.is_empty()) {
-            let escaped_comment = comment.replace('\'', "''");
-            let escaped_col = col.name.replace('\'', "''");
-            ddl.push_str(&format!(
-                "EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'{escaped_comment}', \
-                 @level0type=N'SCHEMA', @level0name=N'{escaped_schema}', \
-                 @level1type=N'TABLE', @level1name=N'{escaped_table}', \
-                 @level2type=N'COLUMN', @level2name=N'{escaped_col}';\n"
-            ));
-        }
-    }
-
-    for idx in indexes {
-        if let Some(comment) = idx.comment.as_deref().filter(|s| !s.is_empty()) {
-            let escaped_comment = comment.replace('\'', "''");
-            let escaped_idx = idx.name.replace('\'', "''");
-            ddl.push_str(&format!(
-                "EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'{escaped_comment}', \
-                 @level0type=N'SCHEMA', @level0name=N'{escaped_schema}', \
-                 @level1type=N'TABLE', @level1name=N'{escaped_table}', \
-                 @level2type=N'INDEX', @level2name=N'{escaped_idx}';\n"
-            ));
-        }
-    }
-
-    ddl
-}
diff --git a/crates/dbx-core/src/schema_diff.rs b/crates/dbx-core/src/schema_diff.rs
index 989bad6e5..b69e28902 100644
--- a/crates/dbx-core/src/schema_diff.rs
+++ b/crates/dbx-core/src/schema_diff.rs
@@ -3,7 +3,9 @@ use std::collections::{HashMap, HashSet};
 use serde::{Deserialize, Serialize};
 
 use crate::models::connection::DatabaseType;
-use crate::types::{ColumnInfo, ForeignKeyInfo, IndexInfo, TableInfo, TriggerInfo};
+use crate::types::{
+    ColumnInfo, ForeignKeyInfo, FunctionInfo, IndexInfo, OwnerInfo, RuleInfo, SequenceInfo, TableInfo, TriggerInfo,
+};
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
@@ -61,6 +63,62 @@ pub struct TriggerDiff {
     pub changes: Vec<String>,
 }
 
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct FunctionDiff {
+    #[serde(rename = "type")]
+    pub diff_type: String,
+    pub name: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub source: Option<FunctionInfo>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub target: Option<FunctionInfo>,
+    #[serde(default, skip_serializing_if = "Vec::is_empty")]
+    pub changes: Vec<String>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct SequenceDiff {
+    #[serde(rename = "type")]
+    pub diff_type: String,
+    pub name: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub source: Option<SequenceInfo>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub target: Option<SequenceInfo>,
+    #[serde(default, skip_serializing_if = "Vec::is_empty")]
+    pub changes: Vec<String>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct RuleDiff {
+    #[serde(rename = "type")]
+    pub diff_type: String,
+    pub name: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub source: Option<RuleInfo>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub target: Option<RuleInfo>,
+    #[serde(default, skip_serializing_if = "Vec::is_empty")]
+    pub changes: Vec<String>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct OwnerDiff {
+    #[serde(rename = "type")]
+    pub diff_type: String,
+    pub object_name: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub source: Option<OwnerInfo>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub target: Option<OwnerInfo>,
+    #[serde(default, skip_serializing_if = "Vec::is_empty")]
+    pub changes: Vec<String>,
+}
+
 #[derive(Debug, Clone, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct TableDiff {
@@ -80,6 +138,8 @@ pub struct TableDiff {
     #[serde(skip_serializing_if = "Option::is_none")]
     pub ddl: Option<String>,
     #[serde(skip_serializing_if = "Option::is_none")]
+    pub target_ddl: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub source_table_comment: Option<Option<String>>,
     #[serde(skip_serializing_if = "Option::is_none")]
     pub target_table_comment: Option<Option<String>>,
@@ -112,24 +172,63 @@ pub struct SchemaDiffPreparationOptions {
     pub source_details: Vec<TableSchemaDetail>,
     #[serde(default)]
     pub target_details: Vec<TableSchemaDetail>,
+    #[serde(default)]
+    pub source_functions: Vec<FunctionInfo>,
+    #[serde(default)]
+    pub target_functions: Vec<FunctionInfo>,
+    #[serde(default)]
+    pub source_sequences: Vec<SequenceInfo>,
+    #[serde(default)]
+    pub target_sequences: Vec<SequenceInfo>,
+    #[serde(default)]
+    pub source_rules: Vec<RuleInfo>,
+    #[serde(default)]
+    pub target_rules: Vec<RuleInfo>,
+    #[serde(default)]
+    pub source_owners: Vec<OwnerInfo>,
+    #[serde(default)]
+    pub target_owners: Vec<OwnerInfo>,
     pub database_type: DatabaseType,
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub target_schema: Option<String>,
     #[serde(default)]
     pub ignore_comments: bool,
+    #[serde(default)]
+    pub cascade_delete: bool,
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct SchemaDiffPreparation {
     pub diffs: Vec<TableDiff>,
+    #[serde(default, skip_serializing_if = "Vec::is_empty")]
+    pub function_diffs: Vec<FunctionDiff>,
+    #[serde(default, skip_serializing_if = "Vec::is_empty")]
+    pub sequence_diffs: Vec<SequenceDiff>,
+    #[serde(default, skip_serializing_if = "Vec::is_empty")]
+    pub rule_diffs: Vec<RuleDiff>,
+    #[serde(default, skip_serializing_if = "Vec::is_empty")]
+    pub owner_diffs: Vec<OwnerDiff>,
     pub sync_sql: String,
 }
 
 pub fn prepare_schema_diff(options: SchemaDiffPreparationOptions) -> SchemaDiffPreparation {
     let diffs = diff_schema(&options);
-    let sync_sql = generate_schema_sync_sql(&diffs, options.database_type, options.target_schema.as_deref());
-    SchemaDiffPreparation { diffs, sync_sql }
+    let function_diffs = diff_functions(&options.source_functions, &options.target_functions);
+    let sequence_diffs = diff_sequences(&options.source_sequences, &options.target_sequences);
+    let rule_diffs = diff_rules(&options.source_rules, &options.target_rules);
+    let owner_diffs = diff_owners(&options.source_owners, &options.target_owners);
+    let sync_sql = generate_schema_sync_sql(
+        &diffs,
+        &function_diffs,
+        &sequence_diffs,
+        &rule_diffs,
+        &owner_diffs,
+        options.database_type,
+        options.target_schema.as_deref(),
+        options.cascade_delete,
+    );
+    SchemaDiffPreparation { diffs, function_diffs, sequence_diffs, rule_diffs, owner_diffs, sync_sql }
 }
 
 fn diff_schema(options: &SchemaDiffPreparationOptions) -> Vec<TableDiff> {
@@ -176,6 +275,7 @@ fn diff_schema(options: &SchemaDiffPreparationOptions) -> Vec<TableDiff> {
             diff_type: "added".to_string(),
             object_type: Some("table".to_string()),
             ddl: source_details.get(name.as_str()).and_then(|detail| detail.ddl.clone()),
+            target_ddl: None,
             name,
             columns: None,
             indexes: None,
@@ -187,6 +287,7 @@ fn diff_schema(options: &SchemaDiffPreparationOptions) -> Vec<TableDiff> {
     }
 
     for name in removed {
+        let name_clone = name.clone();
         result.push(TableDiff {
             diff_type: "removed".to_string(),
             object_type: Some("table".to_string()),
@@ -196,12 +297,14 @@ fn diff_schema(options: &SchemaDiffPreparationOptions) -> Vec<TableDiff> {
             foreign_keys: None,
             triggers: None,
             ddl: None,
+            target_ddl: target_details.get(name_clone.as_str()).and_then(|detail| detail.ddl.clone()),
             source_table_comment: None,
             target_table_comment: None,
         });
     }
 
     for name in added_views {
+        let name_clone = name.clone();
         result.push(TableDiff {
             diff_type: "added".to_string(),
             object_type: Some("view".to_string()),
@@ -210,13 +313,15 @@ fn diff_schema(options: &SchemaDiffPreparationOptions) -> Vec<TableDiff> {
             indexes: None,
             foreign_keys: None,
             triggers: None,
-            ddl: None,
+            ddl: source_details.get(name_clone.as_str()).and_then(|detail| detail.ddl.clone()),
+            target_ddl: None,
             source_table_comment: None,
             target_table_comment: None,
         });
     }
 
     for name in removed_views {
+        let name_clone = name.clone();
         result.push(TableDiff {
             diff_type: "removed".to_string(),
             object_type: Some("view".to_string()),
@@ -226,6 +331,7 @@ fn diff_schema(options: &SchemaDiffPreparationOptions) -> Vec<TableDiff> {
             foreign_keys: None,
             triggers: None,
             ddl: None,
+            target_ddl: target_details.get(name_clone.as_str()).and_then(|detail| detail.ddl.clone()),
             source_table_comment: None,
             target_table_comment: None,
         });
@@ -243,27 +349,29 @@ fn diff_schema(options: &SchemaDiffPreparationOptions) -> Vec<TableDiff> {
         let comment_changed = !options.ignore_comments
             && source_comment.clone().unwrap_or_default() != target_comment.clone().unwrap_or_default();
 
-        if !column_diffs.is_empty()
+        let has_diff = !column_diffs.is_empty()
             || !index_diffs.is_empty()
             || !foreign_key_diffs.is_empty()
             || !trigger_diffs.is_empty()
-            || comment_changed
-        {
-            result.push(TableDiff {
-                diff_type: "modified".to_string(),
-                object_type: Some("table".to_string()),
-                name,
-                columns: (!column_diffs.is_empty()).then_some(column_diffs),
-                indexes: (!index_diffs.is_empty()).then_some(index_diffs),
-                foreign_keys: (!foreign_key_diffs.is_empty()).then_some(foreign_key_diffs),
-                triggers: (!trigger_diffs.is_empty()).then_some(trigger_diffs),
-                ddl: None,
-                source_table_comment: comment_changed.then_some(source_comment),
-                target_table_comment: comment_changed.then_some(target_comment),
-            });
-        }
+            || comment_changed;
+
+        let name_clone = name.clone();
+        result.push(TableDiff {
+            diff_type: if has_diff { "modified".to_string() } else { "none".to_string() },
+            object_type: Some("table".to_string()),
+            name,
+            columns: if has_diff { (!column_diffs.is_empty()).then_some(column_diffs) } else { None },
+            indexes: if has_diff { (!index_diffs.is_empty()).then_some(index_diffs) } else { None },
+            foreign_keys: if has_diff { (!foreign_key_diffs.is_empty()).then_some(foreign_key_diffs) } else { None },
+            triggers: if has_diff { (!trigger_diffs.is_empty()).then_some(trigger_diffs) } else { None },
+            ddl: source_details.get(name_clone.as_str()).and_then(|detail| detail.ddl.clone()),
+            target_ddl: target_details.get(name_clone.as_str()).and_then(|detail| detail.ddl.clone()),
+            source_table_comment: if has_diff { comment_changed.then_some(source_comment) } else { None },
+            target_table_comment: if has_diff { comment_changed.then_some(target_comment) } else { None },
+        });
     }
 
+    result.retain(|diff| diff.diff_type != "none");
     result
 }
 
@@ -563,6 +671,220 @@ fn is_mysql_like(db_type: DatabaseType) -> bool {
     )
 }
 
+/// Normalize a function definition for comparison by:
+/// - Converting CRLF to LF
+/// - Collapsing all whitespace (tabs, multiple spaces) to single spaces
+/// - Trimming each line and rejoining
+fn normalize_definition(def: &str) -> String {
+    def.replace("\r\n", "\n")
+        .split('\n')
+        .map(|line| line.split_whitespace().collect::<Vec<_>>().join(" "))
+        .collect::<Vec<_>>()
+        .join("\n")
+}
+
+pub fn diff_functions(source: &[FunctionInfo], target: &[FunctionInfo]) -> Vec<FunctionDiff> {
+    let mut diffs = Vec::new();
+    // Use (name, arguments) as key to support PostgreSQL function overloading
+    let target_map: HashMap<(&str, &str), &FunctionInfo> =
+        target.iter().map(|f| ((f.name.as_str(), f.arguments.as_str()), f)).collect();
+    let source_map: HashMap<(&str, &str), &FunctionInfo> =
+        source.iter().map(|f| ((f.name.as_str(), f.arguments.as_str()), f)).collect();
+
+    for source_fn in source {
+        let key = (source_fn.name.as_str(), source_fn.arguments.as_str());
+        let Some(target_fn) = target_map.get(&key) else {
+            diffs.push(FunctionDiff {
+                diff_type: "added".to_string(),
+                name: source_fn.name.clone(),
+                source: Some(source_fn.clone()),
+                target: None,
+                changes: Vec::new(),
+            });
+            continue;
+        };
+
+        let mut changes = Vec::new();
+        if source_fn.function_type != target_fn.function_type {
+            changes.push(format!("type: {} → {}", target_fn.function_type, source_fn.function_type));
+        }
+        if source_fn.data_type != target_fn.data_type {
+            changes.push(format!("return type: {} → {}", target_fn.data_type, source_fn.data_type));
+        }
+        if normalize_definition(&source_fn.definition) != normalize_definition(&target_fn.definition) {
+            changes.push("definition changed".to_string());
+        }
+        if !changes.is_empty() {
+            diffs.push(FunctionDiff {
+                diff_type: "modified".to_string(),
+                name: source_fn.name.clone(),
+                source: Some(source_fn.clone()),
+                target: Some((*target_fn).clone()),
+                changes,
+            });
+        }
+    }
+
+    for target_fn in target {
+        let key = (target_fn.name.as_str(), target_fn.arguments.as_str());
+        if !source_map.contains_key(&key) {
+            diffs.push(FunctionDiff {
+                diff_type: "removed".to_string(),
+                name: target_fn.name.clone(),
+                source: None,
+                target: Some(target_fn.clone()),
+                changes: Vec::new(),
+            });
+        }
+    }
+
+    diffs
+}
+
+pub fn diff_sequences(source: &[SequenceInfo], target: &[SequenceInfo]) -> Vec<SequenceDiff> {
+    let mut diffs = Vec::new();
+    let target_map: HashMap<&str, &SequenceInfo> = target.iter().map(|s| (s.name.as_str(), s)).collect();
+    let source_map: HashMap<&str, &SequenceInfo> = source.iter().map(|s| (s.name.as_str(), s)).collect();
+
+    for source_seq in source {
+        let Some(target_seq) = target_map.get(source_seq.name.as_str()) else {
+            diffs.push(SequenceDiff {
+                diff_type: "added".to_string(),
+                name: source_seq.name.clone(),
+                source: Some(source_seq.clone()),
+                target: None,
+                changes: Vec::new(),
+            });
+            continue;
+        };
+
+        let mut changes = Vec::new();
+        if source_seq.data_type != target_seq.data_type {
+            changes.push(format!("data_type: {} → {}", target_seq.data_type, source_seq.data_type));
+        }
+        if source_seq.start_value != target_seq.start_value {
+            changes.push(format!("start: {} → {}", target_seq.start_value, source_seq.start_value));
+        }
+        if source_seq.min_value != target_seq.min_value {
+            changes.push(format!("min: {} → {}", target_seq.min_value, source_seq.min_value));
+        }
+        if source_seq.max_value != target_seq.max_value {
+            changes.push(format!("max: {} → {}", target_seq.max_value, source_seq.max_value));
+        }
+        if source_seq.increment != target_seq.increment {
+            changes.push(format!("increment: {} → {}", target_seq.increment, source_seq.increment));
+        }
+        if source_seq.cycle != target_seq.cycle {
+            changes.push(format!("cycle: {} → {}", target_seq.cycle, source_seq.cycle));
+        }
+        // Only compare last_value when both sides successfully retrieved it.
+        // Avoid false positives when one side lacks permission (returns None).
+        if let (Some(s), Some(t)) = (&source_seq.last_value, &target_seq.last_value) {
+            if s != t {
+                changes.push(format!("last_value: {} → {}", t, s));
+            }
+        }
+        if !changes.is_empty() {
+            diffs.push(SequenceDiff {
+                diff_type: "modified".to_string(),
+                name: source_seq.name.clone(),
+                source: Some(source_seq.clone()),
+                target: Some((*target_seq).clone()),
+                changes,
+            });
+        }
+    }
+
+    for target_seq in target {
+        if !source_map.contains_key(target_seq.name.as_str()) {
+            diffs.push(SequenceDiff {
+                diff_type: "removed".to_string(),
+                name: target_seq.name.clone(),
+                source: None,
+                target: Some(target_seq.clone()),
+                changes: Vec::new(),
+            });
+        }
+    }
+
+    diffs
+}
+
+pub fn diff_rules(source: &[RuleInfo], target: &[RuleInfo]) -> Vec<RuleDiff> {
+    let mut diffs = Vec::new();
+    let target_map: HashMap<&str, &RuleInfo> = target.iter().map(|r| (r.name.as_str(), r)).collect();
+    let source_map: HashMap<&str, &RuleInfo> = source.iter().map(|r| (r.name.as_str(), r)).collect();
+
+    for source_rule in source {
+        let Some(target_rule) = target_map.get(source_rule.name.as_str()) else {
+            diffs.push(RuleDiff {
+                diff_type: "added".to_string(),
+                name: source_rule.name.clone(),
+                source: Some(source_rule.clone()),
+                target: None,
+                changes: Vec::new(),
+            });
+            continue;
+        };
+
+        let mut changes = Vec::new();
+        if source_rule.definition != target_rule.definition {
+            changes.push("definition changed".to_string());
+        }
+        if !changes.is_empty() {
+            diffs.push(RuleDiff {
+                diff_type: "modified".to_string(),
+                name: source_rule.name.clone(),
+                source: Some(source_rule.clone()),
+                target: Some((*target_rule).clone()),
+                changes,
+            });
+        }
+    }
+
+    for target_rule in target {
+        if !source_map.contains_key(target_rule.name.as_str()) {
+            diffs.push(RuleDiff {
+                diff_type: "removed".to_string(),
+                name: target_rule.name.clone(),
+                source: None,
+                target: Some(target_rule.clone()),
+                changes: Vec::new(),
+            });
+        }
+    }
+
+    diffs
+}
+
+pub fn diff_owners(source: &[OwnerInfo], target: &[OwnerInfo]) -> Vec<OwnerDiff> {
+    let mut diffs = Vec::new();
+    let target_map: HashMap<&str, &OwnerInfo> = target.iter().map(|o| (o.object_name.as_str(), o)).collect();
+    let _source_map: HashMap<&str, &OwnerInfo> = source.iter().map(|o| (o.object_name.as_str(), o)).collect();
+
+    for source_owner in source {
+        let Some(target_owner) = target_map.get(source_owner.object_name.as_str()) else {
+            continue; // skip added/removed objects, only compare owners for common objects
+        };
+
+        let mut changes = Vec::new();
+        if source_owner.owner != target_owner.owner {
+            changes.push(format!("owner: {} → {}", target_owner.owner, source_owner.owner));
+        }
+        if !changes.is_empty() {
+            diffs.push(OwnerDiff {
+                diff_type: "modified".to_string(),
+                object_name: source_owner.object_name.clone(),
+                source: Some(source_owner.clone()),
+                target: Some((*target_owner).clone()),
+                changes,
+            });
+        }
+    }
+
+    diffs
+}
+
 fn quote_id(name: &str, db_type: DatabaseType) -> String {
     if is_mysql_like(db_type) {
         format!("`{}`", name.replace('`', "``"))
@@ -673,9 +995,9 @@ fn add_foreign_key_sql(table_name: &str, fk: &ForeignKeyInfo, db_type: DatabaseT
     )
 }
 
-fn drop_object_sql(diff: &TableDiff, db_type: DatabaseType, schema: Option<&str>) -> String {
+fn drop_object_sql(diff: &TableDiff, db_type: DatabaseType, schema: Option<&str>, cascade: &str) -> String {
     let object_type = if diff.object_type.as_deref() == Some("view") { "VIEW" } else { "TABLE" };
-    format!("DROP {object_type} IF EXISTS {};", qualified_name(&diff.name, db_type, schema))
+    format!("DROP {object_type} IF EXISTS {}{cascade};", qualified_name(&diff.name, db_type, schema))
 }
 
 fn comment_literal(comment: &str) -> String {
@@ -707,9 +1029,19 @@ fn table_comment_sql(table_name: &str, comment: &str, db_type: DatabaseType, sch
     }
 }
 
-pub fn generate_schema_sync_sql(diffs: &[TableDiff], db_type: DatabaseType, schema: Option<&str>) -> String {
+pub fn generate_schema_sync_sql(
+    diffs: &[TableDiff],
+    function_diffs: &[FunctionDiff],
+    sequence_diffs: &[SequenceDiff],
+    rule_diffs: &[RuleDiff],
+    owner_diffs: &[OwnerDiff],
+    db_type: DatabaseType,
+    schema: Option<&str>,
+    cascade_delete: bool,
+) -> String {
     let mut lines = Vec::new();
     let is_mysql = is_mysql_like(db_type);
+    let cascade = if cascade_delete { " CASCADE" } else { "" };
 
     for diff in diffs {
         let table = qualified_name(&diff.name, db_type, schema);
@@ -730,7 +1062,7 @@ pub fn generate_schema_sync_sql(diffs: &[TableDiff], db_type: DatabaseType, sche
 
         if diff.diff_type == "removed" {
             lines.push(format!("-- Drop {}: {}", diff.object_type.as_deref().unwrap_or("table"), diff.name));
-            lines.push(drop_object_sql(diff, db_type, schema));
+            lines.push(drop_object_sql(diff, db_type, schema, cascade));
             lines.push(String::new());
             continue;
         }
@@ -853,10 +1185,8 @@ pub fn generate_schema_sync_sql(diffs: &[TableDiff], db_type: DatabaseType, sche
 
         if let Some(foreign_keys) = &diff.foreign_keys {
             for fk in foreign_keys {
-                if fk.diff_type == "added" || fk.diff_type == "modified" {
-                    if let Some(source) = fk.source.as_ref() {
-                        lines.push(add_foreign_key_sql(&diff.name, source, db_type, schema));
-                    }
+                if (fk.diff_type == "added" || fk.diff_type == "modified") && fk.source.is_some() {
+                    lines.push(add_foreign_key_sql(&diff.name, fk.source.as_ref().unwrap(), db_type, schema));
                 }
             }
         }
@@ -885,6 +1215,148 @@ pub fn generate_schema_sync_sql(diffs: &[TableDiff], db_type: DatabaseType, sche
         }
     }
 
+    // Function diffs
+    if !function_diffs.is_empty() {
+        lines.push(String::new());
+        lines.push("-- Functions".to_string());
+        for diff in function_diffs {
+            match diff.diff_type.as_str() {
+                "added" => {
+                    if let Some(source) = &diff.source {
+                        lines.push(format!("-- Create function: {}", diff.name));
+                        lines.push(format!(
+                            "CREATE OR REPLACE FUNCTION {} {};",
+                            qualified_name(&diff.name, db_type, schema),
+                            source.definition
+                        ));
+                    }
+                }
+                "removed" => {
+                    lines.push(format!("-- Drop function: {}", diff.name));
+                    lines.push(format!(
+                        "DROP FUNCTION IF EXISTS {}{cascade};",
+                        qualified_name(&diff.name, db_type, schema)
+                    ));
+                }
+                "modified" => {
+                    if let Some(source) = &diff.source {
+                        lines.push(format!("-- Alter function: {}", diff.name));
+                        lines.push(format!(
+                            "CREATE OR REPLACE FUNCTION {} {};",
+                            qualified_name(&diff.name, db_type, schema),
+                            source.definition
+                        ));
+                    }
+                }
+                _ => {}
+            }
+        }
+    }
+
+    // Sequence diffs
+    if !sequence_diffs.is_empty() {
+        lines.push(String::new());
+        lines.push("-- Sequences".to_string());
+        for diff in sequence_diffs {
+            match diff.diff_type.as_str() {
+                "added" => {
+                    if let Some(source) = &diff.source {
+                        lines.push(format!("-- Create sequence: {}", diff.name));
+                        lines.push(format!(
+                            "CREATE SEQUENCE {} AS {} START WITH {} INCREMENT BY {} MINVALUE {} MAXVALUE {} {};",
+                            qualified_name(&diff.name, db_type, schema),
+                            source.data_type,
+                            source.start_value,
+                            source.increment,
+                            source.min_value,
+                            source.max_value,
+                            if source.cycle { "CYCLE" } else { "NO CYCLE" }
+                        ));
+                    }
+                }
+                "removed" => {
+                    lines.push(format!("-- Drop sequence: {}", diff.name));
+                    lines.push(format!("DROP SEQUENCE {}{cascade};", qualified_name(&diff.name, db_type, schema)));
+                }
+                "modified" => {
+                    if let Some(source) = &diff.source {
+                        lines.push(format!("-- Alter sequence: {}", diff.name));
+                        lines.push(format!(
+                            "ALTER SEQUENCE {} AS {} START WITH {} INCREMENT BY {} MINVALUE {} MAXVALUE {} {};",
+                            qualified_name(&diff.name, db_type, schema),
+                            source.data_type,
+                            source.start_value,
+                            source.increment,
+                            source.min_value,
+                            source.max_value,
+                            if source.cycle { "CYCLE" } else { "NO CYCLE" }
+                        ));
+                    }
+                }
+                _ => {}
+            }
+        }
+    }
+
+    // Rule diffs
+    if !rule_diffs.is_empty() {
+        lines.push(String::new());
+        lines.push("-- Rules".to_string());
+        for diff in rule_diffs {
+            match diff.diff_type.as_str() {
+                "added" => {
+                    if let Some(source) = &diff.source {
+                        lines.push(format!("-- Create rule: {}", diff.name));
+                        lines.push(source.definition.clone());
+                    }
+                }
+                "removed" => {
+                    lines.push(format!("-- Drop rule: {}", diff.name));
+                    if let Some(source) = &diff.source {
+                        lines.push(format!(
+                            "DROP RULE IF EXISTS {} ON {};",
+                            diff.name,
+                            qualified_name(&source.table_name, db_type, schema)
+                        ));
+                    }
+                }
+                "modified" => {
+                    if let Some(source) = &diff.source {
+                        lines.push(format!("-- Alter rule: {}", diff.name));
+                        lines.push(format!(
+                            "DROP RULE IF EXISTS {} ON {};",
+                            diff.name,
+                            qualified_name(&source.table_name, db_type, schema)
+                        ));
+                        lines.push(source.definition.clone());
+                    }
+                }
+                _ => {}
+            }
+        }
+    }
+
+    // Owner diffs
+    if !owner_diffs.is_empty() {
+        lines.push(String::new());
+        lines.push("-- Owners".to_string());
+        for diff in owner_diffs {
+            if let (Some(source), Some(_target)) = (&diff.source, &diff.target) {
+                let object_type = match source.object_type.as_str() {
+                    "TABLE" => "TABLE",
+                    "VIEW" => "VIEW",
+                    "SEQUENCE" => "SEQUENCE",
+                    _ => "TABLE",
+                };
+                lines.push(format!(
+                    "ALTER {object_type} {} OWNER TO {};",
+                    qualified_name(&diff.object_name, db_type, schema),
+                    source.owner
+                ));
+            }
+        }
+    }
+
     lines.join("\n").trim().to_string()
 }
 
@@ -912,8 +1384,8 @@ mod tests {
             ref_schema: overrides.ref_schema,
             ref_table: if overrides.ref_table.is_empty() { "users".to_string() } else { overrides.ref_table },
             ref_column: if overrides.ref_column.is_empty() { "id".to_string() } else { overrides.ref_column },
-            on_update: None,
-            on_delete: None,
+            on_update: overrides.on_update,
+            on_delete: overrides.on_delete,
         }
     }
 
@@ -1058,12 +1530,13 @@ mod tests {
             }]),
             triggers: None,
             ddl: None,
+            target_ddl: None,
             source_table_comment: None,
             target_table_comment: None,
         }];
 
         assert_eq!(
-            generate_schema_sync_sql(&diffs, DatabaseType::Postgres, None),
+            generate_schema_sync_sql(&diffs, &[], &[], &[], &[], DatabaseType::Postgres, None, false),
             [
                 "ALTER TABLE \"orders\" DROP CONSTRAINT \"orders_user_id_fk\";",
                 "DROP INDEX IF EXISTS \"idx_orders_status\";",
@@ -1091,12 +1564,13 @@ mod tests {
             foreign_keys: None,
             triggers: None,
             ddl: None,
+            target_ddl: None,
             source_table_comment: Some(Some("用户表".to_string())),
             target_table_comment: Some(Some("Users".to_string())),
         }];
 
         assert_eq!(
-            generate_schema_sync_sql(&diffs, DatabaseType::Mysql, None),
+            generate_schema_sync_sql(&diffs, &[], &[], &[], &[], DatabaseType::Mysql, None, false),
             [
                 "-- Alter table: users",
                 "ALTER TABLE `users`",
@@ -1141,9 +1615,18 @@ mod tests {
                 triggers: Vec::new(),
                 ddl: None,
             }],
+            source_functions: Vec::new(),
+            target_functions: Vec::new(),
+            source_sequences: Vec::new(),
+            target_sequences: Vec::new(),
+            source_rules: Vec::new(),
+            target_rules: Vec::new(),
+            source_owners: Vec::new(),
+            target_owners: Vec::new(),
             database_type: DatabaseType::Mysql,
             target_schema: None,
             ignore_comments: true,
+            cascade_delete: false,
         };
 
         let result = prepare_schema_diff(options);
@@ -1194,12 +1677,13 @@ mod tests {
             foreign_keys: None,
             triggers: None,
             ddl: None,
+            target_ddl: None,
             source_table_comment: None,
             target_table_comment: None,
         }];
 
         assert_eq!(
-            generate_schema_sync_sql(&diffs, DatabaseType::Postgres, Some("sales")),
+            generate_schema_sync_sql(&diffs, &[], &[], &[], &[], DatabaseType::Postgres, Some("sales"), false),
             [
                 "-- Alter table: orders",
                 "ALTER TABLE \"sales\".\"orders\"  ADD COLUMN \"status\" text;",
diff --git a/crates/dbx-core/src/types.rs b/crates/dbx-core/src/types.rs
index ad318387e..ed41247ee 100644
--- a/crates/dbx-core/src/types.rs
+++ b/crates/dbx-core/src/types.rs
@@ -116,3 +116,43 @@ pub struct TriggerInfo {
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub statement: Option<String>,
 }
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct FunctionInfo {
+    pub name: String,
+    pub function_type: String,
+    pub data_type: String,
+    pub definition: String,
+    pub arguments: String,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct SequenceInfo {
+    pub name: String,
+    pub data_type: String,
+    pub start_value: String,
+    pub min_value: String,
+    pub max_value: String,
+    pub increment: String,
+    pub cycle: bool,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub last_value: Option<String>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct RuleInfo {
+    pub name: String,
+    pub table_name: String,
+    pub definition: String,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct OwnerInfo {
+    pub object_name: String,
+    pub object_type: String,
+    pub owner: String,
+}
diff --git a/crates/dbx-web/src/main.rs b/crates/dbx-web/src/main.rs
index 50df7aa7d..7eafe763f 100644
--- a/crates/dbx-web/src/main.rs
+++ b/crates/dbx-web/src/main.rs
@@ -145,6 +145,10 @@ async fn main() {
         .route("/schema/indexes", get(routes::schema::list_indexes))
         .route("/schema/foreign-keys", get(routes::schema::list_foreign_keys))
         .route("/schema/triggers", get(routes::schema::list_triggers))
+        .route("/schema/functions", get(routes::schema::list_functions))
+        .route("/schema/sequences", get(routes::schema::list_sequences))
+        .route("/schema/rules", get(routes::schema::list_rules))
+        .route("/schema/owners", get(routes::schema::list_owners))
         .route("/schema/ddl", get(routes::schema::get_ddl))
         .route("/schema-diff/prepare", post(routes::schema_diff::prepare_schema_diff))
         .route("/schema-diff/generate-sync-sql", post(routes::schema_diff::generate_schema_sync_sql))
diff --git a/crates/dbx-web/src/routes/schema.rs b/crates/dbx-web/src/routes/schema.rs
index 49c564761..2a54c93c7 100644
--- a/crates/dbx-web/src/routes/schema.rs
+++ b/crates/dbx-web/src/routes/schema.rs
@@ -16,7 +16,6 @@ pub struct SchemaQuery {
     pub filter: Option<String>,
     pub limit: Option<usize>,
     pub object_type: Option<dbx_core::db::ObjectSourceKind>,
-    pub object_types: Option<String>,
 }
 
 pub async fn list_databases(
@@ -61,17 +60,11 @@ pub async fn list_objects(
 ) -> Result<Json<serde_json::Value>, AppError> {
     let database = q.database.as_deref().unwrap_or("");
     let schema = q.schema.as_deref().unwrap_or("");
-    let object_types = q.object_types.as_deref().map(parse_object_types).filter(|types| !types.is_empty());
-    let result = dbx_core::schema::list_objects_core(&state.app, &q.connection_id, database, schema, object_types)
-        .await
-        .map_err(AppError)?;
+    let result =
+        dbx_core::schema::list_objects_core(&state.app, &q.connection_id, database, schema).await.map_err(AppError)?;
     Ok(Json(serde_json::to_value(result).map_err(|e| AppError(e.to_string()))?))
 }
 
-fn parse_object_types(value: &str) -> Vec<String> {
-    value.split(',').map(str::trim).filter(|value| !value.is_empty()).map(ToString::to_string).collect()
-}
-
 pub async fn list_completion_objects(
     State(state): State<Arc<WebState>>,
     Query(q): Query<SchemaQuery>,
@@ -163,3 +156,63 @@ pub async fn get_ddl(
         .map_err(AppError)?;
     Ok(Json(result))
 }
+
+pub async fn list_functions(
+    State(state): State<Arc<WebState>>,
+    Query(q): Query<SchemaQuery>,
+) -> Result<Json<serde_json::Value>, AppError> {
+    let database = q.database.as_deref().unwrap_or("");
+    let schema = q.schema.as_deref().unwrap_or("");
+    let result = dbx_core::schema::list_functions_core(&state.app, &q.connection_id, database, schema)
+        .await
+        .map_err(AppError)?;
+    Ok(Json(serde_json::to_value(result).map_err(|e| AppError(e.to_string()))?))
+}
+
+#[derive(Deserialize)]
+pub struct SequenceQuery {
+    pub connection_id: String,
+    pub database: Option<String>,
+    pub schema: Option<String>,
+    pub with_last_values: Option<bool>,
+}
+
+pub async fn list_sequences(
+    State(state): State<Arc<WebState>>,
+    Query(q): Query<SequenceQuery>,
+) -> Result<Json<serde_json::Value>, AppError> {
+    let database = q.database.as_deref().unwrap_or("");
+    let schema = q.schema.as_deref().unwrap_or("");
+    let result = dbx_core::schema::list_sequences_core(
+        &state.app,
+        &q.connection_id,
+        database,
+        schema,
+        q.with_last_values.unwrap_or(false),
+    )
+    .await
+    .map_err(AppError)?;
+    Ok(Json(serde_json::to_value(result).map_err(|e| AppError(e.to_string()))?))
+}
+
+pub async fn list_rules(
+    State(state): State<Arc<WebState>>,
+    Query(q): Query<SchemaQuery>,
+) -> Result<Json<serde_json::Value>, AppError> {
+    let database = q.database.as_deref().unwrap_or("");
+    let schema = q.schema.as_deref().unwrap_or("");
+    let result =
+        dbx_core::schema::list_rules_core(&state.app, &q.connection_id, database, schema).await.map_err(AppError)?;
+    Ok(Json(serde_json::to_value(result).map_err(|e| AppError(e.to_string()))?))
+}
+
+pub async fn list_owners(
+    State(state): State<Arc<WebState>>,
+    Query(q): Query<SchemaQuery>,
+) -> Result<Json<serde_json::Value>, AppError> {
+    let database = q.database.as_deref().unwrap_or("");
+    let schema = q.schema.as_deref().unwrap_or("");
+    let result =
+        dbx_core::schema::list_owners_core(&state.app, &q.connection_id, database, schema).await.map_err(AppError)?;
+    Ok(Json(serde_json::to_value(result).map_err(|e| AppError(e.to_string()))?))
+}
diff --git a/crates/dbx-web/src/routes/schema_diff.rs b/crates/dbx-web/src/routes/schema_diff.rs
index f8282d415..97413e6de 100644
--- a/crates/dbx-web/src/routes/schema_diff.rs
+++ b/crates/dbx-web/src/routes/schema_diff.rs
@@ -5,8 +5,13 @@ use serde::Deserialize;
 #[serde(rename_all = "camelCase")]
 pub struct GenerateSchemaSyncSqlRequest {
     pub diffs: Vec<dbx_core::schema_diff::TableDiff>,
+    pub function_diffs: Option<Vec<dbx_core::schema_diff::FunctionDiff>>,
+    pub sequence_diffs: Option<Vec<dbx_core::schema_diff::SequenceDiff>>,
+    pub rule_diffs: Option<Vec<dbx_core::schema_diff::RuleDiff>>,
+    pub owner_diffs: Option<Vec<dbx_core::schema_diff::OwnerDiff>>,
     pub database_type: dbx_core::models::connection::DatabaseType,
     pub target_schema: Option<String>,
+    pub cascade_delete: Option<bool>,
 }
 
 pub async fn prepare_schema_diff(
@@ -16,5 +21,14 @@ pub async fn prepare_schema_diff(
 }
 
 pub async fn generate_schema_sync_sql(Json(req): Json<GenerateSchemaSyncSqlRequest>) -> Json<String> {
-    Json(dbx_core::schema_diff::generate_schema_sync_sql(&req.diffs, req.database_type, req.target_schema.as_deref()))
+    Json(dbx_core::schema_diff::generate_schema_sync_sql(
+        &req.diffs,
+        req.function_diffs.as_deref().unwrap_or_default(),
+        req.sequence_diffs.as_deref().unwrap_or_default(),
+        req.rule_diffs.as_deref().unwrap_or_default(),
+        req.owner_diffs.as_deref().unwrap_or_default(),
+        req.database_type,
+        req.target_schema.as_deref(),
+        req.cascade_delete.unwrap_or(false),
+    ))
 }
diff --git a/package.json b/package.json
index eeb1e5e60..b0a3af637 100644
--- a/package.json
+++ b/package.json
@@ -55,6 +55,7 @@
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "codemirror": "^6.0.2",
+    "diff": "^9.0.0",
     "dom-to-image-more": "^3.7.2",
     "echarts": "^6.1.0",
     "leaflet": "^1.9.4",
@@ -73,6 +74,7 @@
     "vue-virtual-scroller": "^3.0.4"
   },
   "devDependencies": {
+    "@lezer/highlight": "^1.2.3",
     "@oxfmt/binding-darwin-arm64": "0.53.0",
     "@oxlint/binding-darwin-arm64": "1.68.0",
     "@tailwindcss/vite": "^4.3.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index f4a24b47d..ce6f0845b 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -98,6 +98,9 @@ importers:
       codemirror:
         specifier: ^6.0.2
         version: 6.0.2
+      diff:
+        specifier: ^9.0.0
+        version: 9.0.0
       dom-to-image-more:
         specifier: ^3.7.2
         version: 3.7.2
@@ -1013,56 +1016,48 @@ packages:
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [arm64]
     os: [linux]
-    libc: [glibc]
 
   '@oxfmt/binding-linux-arm64-musl@0.53.0':
     resolution: {integrity: sha512-I6bhOTroqc3ThrwZ89l2k3ivKuELhdPLbAcJhRNyjWvlgwb0vjRgEnVL1XLx5Jud04/ypNRZBykAWrSk6l/D+g==}
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [arm64]
     os: [linux]
-    libc: [musl]
 
   '@oxfmt/binding-linux-ppc64-gnu@0.53.0':
     resolution: {integrity: sha512-w0p3JzB/PkkQjXALMJMqP9YfP3yq4w6zGsu5kezQmUnxRkN3b/Theg2l/nDgBsOcczxS3gL6Gam5XNAVrO6QJQ==}
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [ppc64]
     os: [linux]
-    libc: [glibc]
 
   '@oxfmt/binding-linux-riscv64-gnu@0.53.0':
     resolution: {integrity: sha512-mzBhF6k1Yq1K/dqDmVe/AAafnlJfEpx7yfUiksyeWXJk5iSzZqBSxcsa02zIytYgQFRZ7h6WPZfwHg/DoOE1Kw==}
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [riscv64]
     os: [linux]
-    libc: [glibc]
 
   '@oxfmt/binding-linux-riscv64-musl@0.53.0':
     resolution: {integrity: sha512-AlFCpnRQhogQFzZXWbO6xB6/Udy745L+eQNmDPGg7G/OeWsYmJc4jZYfUN5pQg0reOPWSED2mOQqKZOJM1U8cA==}
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [riscv64]
     os: [linux]
-    libc: [musl]
 
   '@oxfmt/binding-linux-s390x-gnu@0.53.0':
     resolution: {integrity: sha512-XD4ulY4f1DWbuuZXAqxhVn+gdPmrhnmojWtFN78ctVoupmS845fGhsUrk1HZXKQI+iymbaiz9vAjPsghHNQ7Ag==}
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [s390x]
     os: [linux]
-    libc: [glibc]
 
   '@oxfmt/binding-linux-x64-gnu@0.53.0':
     resolution: {integrity: sha512-xg8KWX0QnxmYWRe60CgHYWXI0ZOtBbqTsXvWiWrcl2XUHJ3fht2QerOk2iWvylzX3zNT2GpvBRxGoR4d3sxPRQ==}
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [x64]
     os: [linux]
-    libc: [glibc]
 
   '@oxfmt/binding-linux-x64-musl@0.53.0':
     resolution: {integrity: sha512-MWExpYBGvl+pIvVB/gj/CcWlN2al8AizT7rUbtaYaWNoQkhWARM6W3qpgoCr72CYSN9PborzPmM5MIRe2BrNdA==}
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [x64]
     os: [linux]
-    libc: [musl]
 
   '@oxfmt/binding-openharmony-arm64@0.53.0':
     resolution: {integrity: sha512-u4sajgO4nxgmJIgc/y2AqPhkdbOkQH8WugXpA1+pW0ESQhvGZ1oGq61Q4xMbJHJU1hFgtO18QNrcFYDPYH0gwQ==}
@@ -1135,56 +1130,48 @@ packages:
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [arm64]
     os: [linux]
-    libc: [glibc]
 
   '@oxlint/binding-linux-arm64-musl@1.68.0':
     resolution: {integrity: sha512-qVKtCZNic+OoNnOr/hCQAu22HSQzflI7Fsq/Blzkw02SnLuv163k3kfmrVpZjSBlUHgsRKj6WgQiw30d3SX02Q==}
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [arm64]
     os: [linux]
-    libc: [musl]
 
   '@oxlint/binding-linux-ppc64-gnu@1.68.0':
     resolution: {integrity: sha512-zExyZ8ZOUuAyQ0y9jpTcyjKUz62YY9JhKPyVxzvjTpXzZ3ujdqiVwfPWDdnA1SsIOrxdtxHn7KErDHLWskFjXg==}
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [ppc64]
     os: [linux]
-    libc: [glibc]
 
   '@oxlint/binding-linux-riscv64-gnu@1.68.0':
     resolution: {integrity: sha512-6C4MPuwewyDavA7sxM14wzgRi5GGL68HPIxRCdVyS75U4MDbpFVYzKO9WNR6KLKTMPq2pcz3THwo1sK2uiqngw==}
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [riscv64]
     os: [linux]
-    libc: [glibc]
 
   '@oxlint/binding-linux-riscv64-musl@1.68.0':
     resolution: {integrity: sha512-bnZooVeHAcvA+dH0EDLgx+7HY/DRi6e0hFszg3P+OBatuUjV6EvfIyNIzWOusmqAVh4L6r21GGTZtiKE4iqM4Q==}
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [riscv64]
     os: [linux]
-    libc: [musl]
 
   '@oxlint/binding-linux-s390x-gnu@1.68.0':
     resolution: {integrity: sha512-dIqnZnJSmHCMOUpUcWQOiV14o3DDPVx1DSsMaSzvdhNjC1tB1iEPZbdiMSCIEYbkgbsYznHXWqFdKL8WUB3F8g==}
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [s390x]
     os: [linux]
-    libc: [glibc]
 
   '@oxlint/binding-linux-x64-gnu@1.68.0':
     resolution: {integrity: sha512-zc9lEnfV/HreDTY6gdMlZe+irkwHSxQ4/B1pS9GyK7RVaA5LxhoZY/w6/o2vIwLLEYiXQ5ujGxOM1ZazeFAAIA==}
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [x64]
     os: [linux]
-    libc: [glibc]
 
   '@oxlint/binding-linux-x64-musl@1.68.0':
     resolution: {integrity: sha512-Dl5QEX0TCo/40Cdh1o1JdPS//+YiWqjC+Hrrya5OQmStZZr4svAFtdlqcpCrU9yq2Mo3vRVyO9B3h0dzD8s36Q==}
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [x64]
     os: [linux]
-    libc: [musl]
 
   '@oxlint/binding-openharmony-arm64@1.68.0':
     resolution: {integrity: sha512-/qy6dOvi4S3/LeXq0l5BT5pRKPYA7oj3uKwJOAZOr5HRLL+HK6jdBynvWuXIA2wwfE01RzNYmbBdM7vwYx00sA==}
@@ -1245,42 +1232,36 @@ packages:
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [arm64]
     os: [linux]
-    libc: [glibc]
 
   '@rolldown/binding-linux-arm64-musl@1.0.3':
     resolution: {integrity: sha512-VWkUHwWriDciit80wleYwKILoR/KMvxh/IdwS/paX+ZgpuRpCrKLUdadJbc0NpBEiyhpYawsJ73j9aCvOH+f7Q==}
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [arm64]
     os: [linux]
-    libc: [musl]
 
   '@rolldown/binding-linux-ppc64-gnu@1.0.3':
     resolution: {integrity: sha512-5f1laC0SlIR0yDbFCd8acUhvJIag6N3zC5P7oUPN6wX0aOma+uKJ0wBDH5aq7I1PVI2ttTlhJwzwRIBnLiSGEg==}
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [ppc64]
     os: [linux]
-    libc: [glibc]
 
   '@rolldown/binding-linux-s390x-gnu@1.0.3':
     resolution: {integrity: sha512-Iq4ko0r4XsgbrF/LunNgHtAGLRRVE2kXonAXQ/MV0mC6jQpMOhW1SvtZja2EhC/kd05++bP78dsqBeIQyYJ6Yg==}
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [s390x]
     os: [linux]
-    libc: [glibc]
 
   '@rolldown/binding-linux-x64-gnu@1.0.3':
     resolution: {integrity: sha512-B8m6tD5+/N5FeNQFbKlLA/2yVq9ycQP1SeedyEYYKWBNR3ZQbkvIUcNnDNM03lO1l5F2roiiFJGgvoLLyZXtSg==}
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [x64]
     os: [linux]
-    libc: [glibc]
 
   '@rolldown/binding-linux-x64-musl@1.0.3':
     resolution: {integrity: sha512-pSdpdUJHkuCxun9LE7jvgUB9qsRgaiyNNCX7m/AvHTcq67AiT/Yhoxvw5zPfhrM8k/BfP8ce/hMOpthKDpEUow==}
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [x64]
     os: [linux]
-    libc: [musl]
 
   '@rolldown/binding-openharmony-arm64@1.0.3':
     resolution: {integrity: sha512-OXXS3RKJgX2uLwM+gYyuH5omcH8fL1LJs96pZGgtetVCahON57+d4SJHzTgZiOjxgGkSnpXpOsWuPDGAKAigEg==}
@@ -1383,28 +1364,24 @@ packages:
     engines: {node: '>= 20'}
     cpu: [arm64]
     os: [linux]
-    libc: [glibc]
 
   '@tailwindcss/oxide-linux-arm64-musl@4.3.0':
     resolution: {integrity: sha512-Z6sukiQsngnWO+l39X4pPbiWT81IC+PLKF+PHxIlyZbGNb9MODfYlXEVlFvej5BOZInWX01kVyzeLvHsXhfczQ==}
     engines: {node: '>= 20'}
     cpu: [arm64]
     os: [linux]
-    libc: [musl]
 
   '@tailwindcss/oxide-linux-x64-gnu@4.3.0':
     resolution: {integrity: sha512-DRNdQRpSGzRGfARVuVkxvM8Q12nh19l4BF/G7zGA1oe+9wcC6saFBHTISrpIcKzhiXtSrlSrluCfvMuledoCTQ==}
     engines: {node: '>= 20'}
     cpu: [x64]
     os: [linux]
-    libc: [glibc]
 
   '@tailwindcss/oxide-linux-x64-musl@4.3.0':
     resolution: {integrity: sha512-Z0IADbDo8bh6I7h2IQMx601AdXBLfFpEdUotft86evd/8ZPflZe9COPO8Q1vw+pfLWIUo9zN/JGZvwuAJqduqg==}
     engines: {node: '>= 20'}
     cpu: [x64]
     os: [linux]
-    libc: [musl]
 
   '@tailwindcss/oxide-wasm32-wasi@4.3.0':
     resolution: {integrity: sha512-HNZGOUxEmElksYR7S6sC5jTeNGpobAsy9u7Gu0AskJ8/20FR9GqebUyB+HBcU/ax6BHuiuJi+Oda4B+YX6H1yA==}
@@ -1473,35 +1450,30 @@ packages:
     engines: {node: '>= 10'}
     cpu: [arm64]
     os: [linux]
-    libc: [glibc]
 
   '@tauri-apps/cli-linux-arm64-musl@2.11.2':
     resolution: {integrity: sha512-X1rm0BERqAAggtYTESSgXrS3sz4Sb/OiPiz54UqISlXW+GkR3vNIGnsy/lejNmoXGVqri3Q53BCfQiclOIyRPw==}
     engines: {node: '>= 10'}
     cpu: [arm64]
     os: [linux]
-    libc: [musl]
 
   '@tauri-apps/cli-linux-riscv64-gnu@2.11.2':
     resolution: {integrity: sha512-usbMLJbT3KtkOrBMDVeGYNM35aTHXx38SJSzTMSqqjeUIOQ+iVPjb2yAGNAE+KqmBbAx4FOFIyMeKXx2M/JKGQ==}
     engines: {node: '>= 10'}
     cpu: [riscv64]
     os: [linux]
-    libc: [glibc]
 
   '@tauri-apps/cli-linux-x64-gnu@2.11.2':
     resolution: {integrity: sha512-Ru4gwJKPG0ctVGchRGpRup4Y4lW2SSfFnrbQcyHhCliKy4g8Qz97TrUgCur4CbWyAgKxvGh3SjrkA0LDYzDGiw==}
     engines: {node: '>= 10'}
     cpu: [x64]
     os: [linux]
-    libc: [glibc]
 
   '@tauri-apps/cli-linux-x64-musl@2.11.2':
     resolution: {integrity: sha512-eUm7T6clN1MMmNSRQ9gaWsQdyehQx2Gmn5hht/QUlqZQI/qcP2OJK5dnaxqwFzCr2HdsEo9ydxaqcS1oJzMvUw==}
     engines: {node: '>= 10'}
     cpu: [x64]
     os: [linux]
-    libc: [musl]
 
   '@tauri-apps/cli-win32-arm64-msvc@2.11.2':
     resolution: {integrity: sha512-HeeZW80jU+gVTOEX4X/hC6NVSAdDVXajwP5fxIZ/3z9WvUC7qrudX2GMTilYq6Dg0e0sk0XgsAJD1hZ5wPBXUA==}
@@ -2144,6 +2116,10 @@ packages:
     resolution: {integrity: sha512-DPi0FmjiSU5EvQV0++GFDOJ9ASQUVFh5kD+OzOnYdi7n3Wpm9hWWGfB/O2blfHcMVTL5WkQXSnRiK9makhrcnw==}
     engines: {node: '>=0.3.1'}
 
+  diff@9.0.0:
+    resolution: {integrity: sha512-svtcdpS8CgJyqAjEQIXdb3OjhFVVYjzGAPO8WGCmRbrml64SPw/jJD4GoE98aR7r25A0XcgrK3F02yw9R/vhQw==}
+    engines: {node: '>=0.3.1'}
+
   discontinuous-range@1.0.0:
     resolution: {integrity: sha512-c68LpLbO+7kP/b1Hr1qs8/BJ09F5khZGTxqxZuhzxpmwJKOgRFHJWIb9/KmqnqHhLdO55aOxFH/EGBvUQbL/RQ==}
 
@@ -2745,28 +2721,24 @@ packages:
     engines: {node: '>= 12.0.0'}
     cpu: [arm64]
     os: [linux]
-    libc: [glibc]
 
   lightningcss-linux-arm64-musl@1.32.0:
     resolution: {integrity: sha512-UpQkoenr4UJEzgVIYpI80lDFvRmPVg6oqboNHfoH4CQIfNA+HOrZ7Mo7KZP02dC6LjghPQJeBsvXhJod/wnIBg==}
     engines: {node: '>= 12.0.0'}
     cpu: [arm64]
     os: [linux]
-    libc: [musl]
 
   lightningcss-linux-x64-gnu@1.32.0:
     resolution: {integrity: sha512-V7Qr52IhZmdKPVr+Vtw8o+WLsQJYCTd8loIfpDaMRWGUZfBOYEJeyJIkqGIDMZPwPx24pUMfwSxxI8phr/MbOA==}
     engines: {node: '>= 12.0.0'}
     cpu: [x64]
     os: [linux]
-    libc: [glibc]
 
   lightningcss-linux-x64-musl@1.32.0:
     resolution: {integrity: sha512-bYcLp+Vb0awsiXg/80uCRezCYHNg1/l3mt0gzHnWV9XP1W5sKa5/TCdGWaR/zBM2PeF/HbsQv/j2URNOiVuxWg==}
     engines: {node: '>= 12.0.0'}
     cpu: [x64]
     os: [linux]
-    libc: [musl]
 
   lightningcss-win32-arm64-msvc@1.32.0:
     resolution: {integrity: sha512-8SbC8BR40pS6baCM8sbtYDSwEVQd4JlFTOlaD3gWGHfThTcABnNDBda6eTZeqbofalIJhFx0qKzgHJmcPTnGdw==}
@@ -5639,6 +5611,8 @@ snapshots:
 
   diff@8.0.4: {}
 
+  diff@9.0.0: {}
+
   discontinuous-range@1.0.0: {}
 
   dom-serializer@2.0.0:
diff --git a/src-tauri/src/commands/schema.rs b/src-tauri/src/commands/schema.rs
index 9b4c197e6..54e1df996 100644
--- a/src-tauri/src/commands/schema.rs
+++ b/src-tauri/src/commands/schema.rs
@@ -39,9 +39,8 @@ pub async fn list_objects(
     connection_id: String,
     database: String,
     schema: String,
-    object_types: Option<Vec<String>>,
 ) -> Result<Vec<db::ObjectInfo>, String> {
-    dbx_core::schema::list_objects_core(&state, &connection_id, &database, &schema, object_types).await
+    dbx_core::schema::list_objects_core(&state, &connection_id, &database, &schema).await
 }
 
 #[tauri::command]
@@ -120,3 +119,44 @@ pub async fn get_table_ddl(
 ) -> Result<String, String> {
     dbx_core::schema::get_table_ddl_core(&state, &connection_id, &database, &schema, &table).await
 }
+
+#[tauri::command]
+pub async fn list_functions(
+    state: State<'_, Arc<AppState>>,
+    connection_id: String,
+    database: String,
+    schema: String,
+) -> Result<Vec<db::FunctionInfo>, String> {
+    dbx_core::schema::list_functions_core(&state, &connection_id, &database, &schema).await
+}
+
+#[tauri::command]
+pub async fn list_sequences(
+    state: State<'_, Arc<AppState>>,
+    connection_id: String,
+    database: String,
+    schema: String,
+    with_last_values: bool,
+) -> Result<Vec<db::SequenceInfo>, String> {
+    dbx_core::schema::list_sequences_core(&state, &connection_id, &database, &schema, with_last_values).await
+}
+
+#[tauri::command]
+pub async fn list_rules(
+    state: State<'_, Arc<AppState>>,
+    connection_id: String,
+    database: String,
+    schema: String,
+) -> Result<Vec<db::RuleInfo>, String> {
+    dbx_core::schema::list_rules_core(&state, &connection_id, &database, &schema).await
+}
+
+#[tauri::command]
+pub async fn list_owners(
+    state: State<'_, Arc<AppState>>,
+    connection_id: String,
+    database: String,
+    schema: String,
+) -> Result<Vec<db::OwnerInfo>, String> {
+    dbx_core::schema::list_owners_core(&state, &connection_id, &database, &schema).await
+}
diff --git a/src-tauri/src/commands/schema_diff.rs b/src-tauri/src/commands/schema_diff.rs
index 5d8adba9b..da490b289 100644
--- a/src-tauri/src/commands/schema_diff.rs
+++ b/src-tauri/src/commands/schema_diff.rs
@@ -8,8 +8,22 @@ pub fn prepare_schema_diff(
 #[tauri::command]
 pub fn generate_schema_sync_sql(
     diffs: Vec<dbx_core::schema_diff::TableDiff>,
+    function_diffs: Option<Vec<dbx_core::schema_diff::FunctionDiff>>,
+    sequence_diffs: Option<Vec<dbx_core::schema_diff::SequenceDiff>>,
+    rule_diffs: Option<Vec<dbx_core::schema_diff::RuleDiff>>,
+    owner_diffs: Option<Vec<dbx_core::schema_diff::OwnerDiff>>,
     database_type: dbx_core::models::connection::DatabaseType,
     target_schema: Option<String>,
+    cascade_delete: Option<bool>,
 ) -> Result<String, String> {
-    Ok(dbx_core::schema_diff::generate_schema_sync_sql(&diffs, database_type, target_schema.as_deref()))
+    Ok(dbx_core::schema_diff::generate_schema_sync_sql(
+        &diffs,
+        function_diffs.as_deref().unwrap_or_default(),
+        sequence_diffs.as_deref().unwrap_or_default(),
+        rule_diffs.as_deref().unwrap_or_default(),
+        owner_diffs.as_deref().unwrap_or_default(),
+        database_type,
+        target_schema.as_deref(),
+        cascade_delete.unwrap_or(false),
+    ))
 }
diff --git a/src-tauri/src/lib.rs b/src-tauri/src/lib.rs
index ac40d114a..0d128aeea 100644
--- a/src-tauri/src/lib.rs
+++ b/src-tauri/src/lib.rs
@@ -369,6 +369,10 @@ pub fn run() {
             commands::schema::list_foreign_keys,
             commands::schema::list_triggers,
             commands::schema::get_table_ddl,
+            commands::schema::list_functions,
+            commands::schema::list_sequences,
+            commands::schema::list_rules,
+            commands::schema::list_owners,
             commands::schema_diff::prepare_schema_diff,
             commands::schema_diff::generate_schema_sync_sql,
             commands::schema_cache::save_schema_cache,