diff --git a/apps/desktop/src/lib/tableTree.ts b/apps/desktop/src/lib/tableTree.ts
index acf0baa12..a6c54b474 100644
--- a/apps/desktop/src/lib/tableTree.ts
+++ b/apps/desktop/src/lib/tableTree.ts
@@ -231,13 +231,20 @@ export function mergeTableInfosIntoObjects(
     if (objectType !== "TABLE" && objectType !== "VIEW") continue;
     const name = normalizeDatabaseObjectName(table.name);
     if (!name) continue;
-    const key = `${objectType}\0${(schema || "").toLowerCase()}\0${name.toLowerCase()}`;
+    const matchingObject = objects.find((obj) => {
+      const objName = normalizeDatabaseObjectName(obj.name);
+      if (objName.toLowerCase() !== name.toLowerCase()) return false;
+      return normalizeObjectType(obj.object_type) === objectType;
+    });
+    const tableSchema =
+      schema ?? (matchingObject?.schema ? normalizeDatabaseObjectName(matchingObject.schema) : undefined);
+    const key = `${objectType}\0${(tableSchema || "").toLowerCase()}\0${name.toLowerCase()}`;
     if (seen.has(key)) continue;
     seen.add(key);
     merged.push({
       name,
       object_type: objectType,
-      schema,
+      schema: tableSchema,
       comment: table.comment,
       created_at: undefined,
       updated_at: undefined,
diff --git a/packages/app-tests/tableTree.test.ts b/packages/app-tests/tableTree.test.ts
index 3c148040a..193fbcf5d 100644
--- a/packages/app-tests/tableTree.test.ts
+++ b/packages/app-tests/tableTree.test.ts
@@ -193,3 +193,26 @@ test("mergeTableInfosIntoObjects restores views missing from object metadata", (
     ],
   );
 });
+
+test("mergeTableInfosIntoObjects dedupes MySQL tables when object metadata carries database as schema", () => {
+  const merged = mergeTableInfosIntoObjects(
+    [
+      {
+        name: "orders",
+        object_type: "TABLE",
+        schema: "app",
+        comment: null,
+        created_at: null,
+        updated_at: null,
+        parent_schema: null,
+        parent_name: null,
+      },
+    ],
+    [table("orders")],
+  );
+
+  assert.deepEqual(
+    merged.map((item) => ({ name: item.name, type: item.object_type, schema: item.schema })),
+    [{ name: "orders", type: "TABLE", schema: "app" }],
+  );
+});