diff --git a/apps/desktop/src/lib/__tests__/sidebar/dataTabOpenPolicy.spec.ts b/apps/desktop/src/lib/__tests__/sidebar/dataTabOpenPolicy.spec.ts
index 31786c23f..eaaae262b 100644
--- a/apps/desktop/src/lib/__tests__/sidebar/dataTabOpenPolicy.spec.ts
+++ b/apps/desktop/src/lib/__tests__/sidebar/dataTabOpenPolicy.spec.ts
@@ -82,6 +82,16 @@ describe("dataTabOpenPolicy", () => {
     expect(findExistingDataTabCandidate([tab], usersTarget, { openMode: "default", reuseDataTab: false })).toEqual({ tab, match: "same-table" });
   });
 
+  it("ignores metadata query schemas for database-scoped tables", () => {
+    const tab = dataTab("users", "users");
+    tab.schema = undefined;
+    tab.tableMeta = { schema: "app", tableName: "users", columns: [], primaryKeys: [] };
+    const mysqlTarget = { connectionId: "conn", database: "app", tableName: "users" };
+
+    expect(canApplyDataTabMetadata(tab, mysqlTarget, new AbortController().signal)).toBe(true);
+    expect(findExistingDataTabCandidate([tab], mysqlTarget, { openMode: "default", reuseDataTab: false })).toEqual({ tab, match: "same-table" });
+  });
+
   it("rejects metadata after its request is cancelled", () => {
     const tab = dataTab("users", "users");
     tab.tableMeta = { schema: "public", tableName: "users", columns: [], primaryKeys: [] };
diff --git a/apps/desktop/src/lib/sidebar/dataTabOpenPolicy.ts b/apps/desktop/src/lib/sidebar/dataTabOpenPolicy.ts
index 94d527060..814508d29 100644
--- a/apps/desktop/src/lib/sidebar/dataTabOpenPolicy.ts
+++ b/apps/desktop/src/lib/sidebar/dataTabOpenPolicy.ts
@@ -34,7 +34,8 @@ function isSameDatabase(tab: DataTabLike, target: Pick<DataTabTarget, "connectio
 }
 
 function isSameTable(tab: DataTabLike, target: DataTabTarget): boolean {
-  return isSameDatabase(tab, target) && (tab.tableMeta?.catalog || "") === (target.catalog || "") && (tab.schema || tab.tableMeta?.schema || "") === (target.schema || "") && (tab.tableMeta?.tableName || tab.title) === target.tableName;
+  const tabSchema = tab.schema || (target.schema ? tab.tableMeta?.schema : undefined) || "";
+  return isSameDatabase(tab, target) && (tab.tableMeta?.catalog || "") === (target.catalog || "") && tabSchema === (target.schema || "") && (tab.tableMeta?.tableName || tab.title) === target.tableName;
 }
 
 export function canApplyDataTabMetadata(tab: DataTabLike | undefined, target: DataTabTarget, signal?: AbortSignal): boolean {