diff --git a/apps/desktop/src/stores/__tests__/queryStore.dorisQualifiedColumnComments.spec.ts b/apps/desktop/src/stores/__tests__/queryStore.dorisQualifiedColumnComments.spec.ts
index cf2d53a7a6..b40b3d80ed 100644
--- a/apps/desktop/src/stores/__tests__/queryStore.dorisQualifiedColumnComments.spec.ts
+++ b/apps/desktop/src/stores/__tests__/queryStore.dorisQualifiedColumnComments.spec.ts
@@ -11,6 +11,7 @@ const getConnectionConfig = vi.fn();
 const lookupLocalCompletionTables = vi.fn();
 const buildSortedQuerySql = vi.fn();
 const buildDataGridCountSql = vi.fn();
+const appendDebugLog = vi.fn();
 const prepareQueryPaginationExecutionPlan = vi.fn(async (options) => ({
   sqlToExecute: options.sql,
   pageSql: undefined,
@@ -24,6 +25,10 @@ const editorSettings = {
   autoCalculateTotalRows: false,
 };
 
+vi.mock("@/lib/backend/debugLog", () => ({
+  appendDebugLog,
+}));
+
 vi.mock("@/lib/backend/api", () => ({
   analyzeEditableQueryEditability,
   buildDataGridCountSql,
@@ -136,4 +141,141 @@ describe("queryStore Doris qualified-table metadata target", () => {
     // Uncommented columns stay empty — no placeholder in the header.
     expect(comments.get("extra_field")).toBeNull();
   }, 15000);
+
+  it("carries the tab's external catalog for unqualified tables so the column lookup resolves in the federated catalog", async () => {
+    // The engine's internal default database ("yunye") differs from the
+    // catalog database ("mydb"): without the catalog the lookup would search
+    // the internal catalog and find no such database (issue #9776).
+    getConnectionConfig.mockReturnValue({ id: "doris-1", name: "Doris", db_type: "doris", database: "yunye", query_timeout_secs: 30 });
+    analyzeEditableQueryEditability.mockResolvedValue({
+      editable: true,
+      analysis: {
+        // `SELECT * FROM dbx_comment_test` — nothing qualified in the SQL.
+        schema: undefined,
+        schemaQuoted: false,
+        tableName: "dbx_comment_test",
+        tableNameQuoted: false,
+        tableAlias: undefined,
+        selectStar: true,
+        columns: [],
+        multiSource: false,
+        allowInsertDelete: true,
+      },
+    });
+    const { useQueryStore } = await import("@/stores/queryStore");
+    const store = useQueryStore();
+    const tabId = store.createTab("doris-1", "mydb", "Query", "query", undefined, undefined, "ice");
+
+    await store.executeTabSql(tabId, "SELECT * FROM dbx_comment_test");
+
+    const tab = store.tabs.find((item) => item.id === tabId)!;
+    await vi.waitFor(() => expect(tab.tableMeta).toBeDefined(), { timeout: 8000 });
+
+    // The metadata request keeps the execution database and inherits the tab's
+    // external catalog: column comments and editability resolve there.
+    expect(getColumns).toHaveBeenCalledWith("doris-1", "mydb", "mydb", "dbx_comment_test", "ice");
+    const comments = new Map((tab.tableMeta?.columns ?? []).map((c) => [c.name, c.comment]));
+    expect(comments.get("id")).toBe("主键ID");
+    expect(comments.get("user_name")).toBe("用户名称");
+  }, 15000);
+
+  it("keeps the SQL-qualified catalog even when the tab selected a different external catalog", async () => {
+    getConnectionConfig.mockReturnValue({ id: "doris-1", name: "Doris", db_type: "doris", database: "yunye", query_timeout_secs: 30 });
+    analyzeEditableQueryEditability.mockResolvedValue({
+      editable: true,
+      analysis: {
+        // `SELECT * FROM other_catalog.hivedb.orders` — the SQL names a
+        // different catalog than the tab context; it must win.
+        catalog: "other_catalog",
+        catalogQuoted: false,
+        schema: "hivedb",
+        schemaQuoted: false,
+        tableName: "orders",
+        tableNameQuoted: false,
+        tableAlias: undefined,
+        selectStar: true,
+        columns: [],
+        multiSource: false,
+        allowInsertDelete: true,
+      },
+    });
+    const { useQueryStore } = await import("@/stores/queryStore");
+    const store = useQueryStore();
+    const tabId = store.createTab("doris-1", "mydb", "Query", "query", undefined, undefined, "ice");
+
+    await store.executeTabSql(tabId, "SELECT * FROM other_catalog.hivedb.orders");
+
+    const tab = store.tabs.find((item) => item.id === tabId)!;
+    await vi.waitFor(() => expect(tab.tableMeta).toBeDefined(), { timeout: 8000 });
+
+    // Qualified behavior is unchanged: the SQL's database lands in `schema`
+    // (the tab's execution database stays in `database`) and the catalog
+    // parsed from the SQL wins over the tab context.
+    expect(getColumns).toHaveBeenCalledWith("doris-1", "mydb", "hivedb", "orders", "other_catalog");
+  }, 15000);
+
+  it("never forwards a tab catalog to metadata on non-Doris-family connections", async () => {
+    getConnectionConfig.mockReturnValue({ id: "mysql-1", name: "MySQL", db_type: "mysql", driver_profile: "mysql", database: "sakila", query_timeout_secs: 30 });
+    analyzeEditableQueryEditability.mockResolvedValue({
+      editable: true,
+      analysis: {
+        schema: undefined,
+        schemaQuoted: false,
+        tableName: "actor",
+        tableNameQuoted: false,
+        tableAlias: undefined,
+        selectStar: true,
+        columns: [],
+        multiSource: false,
+        allowInsertDelete: true,
+      },
+    });
+    const { useQueryStore } = await import("@/stores/queryStore");
+    const store = useQueryStore();
+    // A stale/foreign catalog on the tab must not leak into metadata requests:
+    // plain MySQL has no catalog federation, so the lookup stays catalog-less.
+    const tabId = store.createTab("mysql-1", "sakila", "Query", "query", undefined, undefined, "legacy");
+
+    await store.executeTabSql(tabId, "SELECT * FROM actor");
+
+    const tab = store.tabs.find((item) => item.id === tabId)!;
+    await vi.waitFor(() => expect(tab.tableMeta).toBeDefined(), { timeout: 8000 });
+
+    expect(getColumns).toHaveBeenCalledWith("mysql-1", "sakila", "sakila", "actor", undefined);
+  }, 15000);
+
+  it("records a warn-level debug log with the execution context when the column lookup fails", async () => {
+    getConnectionConfig.mockReturnValue({ id: "doris-1", name: "Doris", db_type: "doris", database: "yunye", query_timeout_secs: 30 });
+    analyzeEditableQueryEditability.mockResolvedValue({
+      editable: true,
+      analysis: {
+        schema: undefined,
+        schemaQuoted: false,
+        tableName: "dbx_comment_test",
+        tableNameQuoted: false,
+        tableAlias: undefined,
+        selectStar: true,
+        columns: [],
+        multiSource: false,
+        allowInsertDelete: true,
+      },
+    });
+    getColumns.mockRejectedValueOnce(new Error("errcode: 1049, Unknown database 'mydb'"));
+    const { useQueryStore } = await import("@/stores/queryStore");
+    const store = useQueryStore();
+    const tabId = store.createTab("doris-1", "mydb", "Query", "query", undefined, undefined, "ice");
+
+    await store.executeTabSql(tabId, "SELECT * FROM dbx_comment_test");
+
+    // The failure stays silent for the user (no error result), surfaces as the
+    // metadata-unavailable read-only reason, and is diagnosable from the log.
+    const tab = store.tabs.find((item) => item.id === tabId)!;
+    await vi.waitFor(() => expect(tab.queryEditabilityReason).toBe("metadata-unavailable"), { timeout: 8000 });
+    expect(tab.result?.error).toBeUndefined();
+    const failure = appendDebugLog.mock.calls.find(([level, message]) => level === "warn" && String(message).includes("metadata:columns:failed"));
+    expect(failure).toBeTruthy();
+    const details = failure?.[2] as Record<string, unknown> | undefined;
+    expect(details?.database).toBe("mydb");
+    expect(details?.catalog).toBe("ice");
+  }, 15000);
 });
diff --git a/apps/desktop/src/stores/queryStore.ts b/apps/desktop/src/stores/queryStore.ts
index 1d4d72016e..a90d1032ba 100644
--- a/apps/desktop/src/stores/queryStore.ts
+++ b/apps/desktop/src/stores/queryStore.ts
@@ -45,7 +45,7 @@ import { redisCommandResultToQueryResult } from "@/lib/redis/redisQueryResult";
 import { nextRedisCommandDb } from "@/lib/redis/redisCommandSession";
 import { isRedisMutatingCommand } from "@/lib/redis/redisCommandTable";
 import { usesAgentCursorForQuery } from "@/lib/database/databaseDriverManifest";
-import { defaultAutoCommitForDbType, supportsClearableQuerySchema, supportsTransaction, usesOracleStickyTransactionState, usesProvenReadOnlyStickyTransactionState } from "@/lib/database/databaseFeatureSupport";
+import { connectionIsDorisFamilyCatalogCapable, defaultAutoCommitForDbType, supportsClearableQuerySchema, supportsTransaction, usesOracleStickyTransactionState, usesProvenReadOnlyStickyTransactionState } from "@/lib/database/databaseFeatureSupport";
 import { canInsertTableRows, canUseKeylessRowPredicate, DBX_ROWID_COLUMN, editablePrimaryKeys, shouldIncludeSyntheticRowId, usesSyntheticRowIdKey } from "@/lib/table/tableEditing";
 import { TABLE_DATA_EXPORT_PAGE_SIZE } from "@/lib/table/tableDataExport";
 import { tableMetaForDataTab } from "@/lib/table/tableDataTabMeta";
@@ -5553,7 +5553,13 @@ export const useQueryStore = defineStore("query", () => {
     const resolvedSchema = (dbType === "sqlserver" && !source.schema) || (ORACLE_LIKE_METADATA_TYPES.has(metadataDbType) && !schema) || resolveAgentSearchPathSchema || useCurrentPostgresSchema ? "" : metadataSchemaForConnection(conn, metadataDatabase, schema || undefined);
     const metadataSchema = normalizeUppercaseFoldedMetadataIdentifier(metadataDbType, resolvedSchema || undefined, source.schema ? source.schemaQuoted : false) || "";
     const metadataTableName = normalizeUppercaseFoldedMetadataIdentifier(metadataDbType, source.tableName, source.tableNameQuoted)!;
-    const metadataCatalog = normalizeUppercaseFoldedMetadataIdentifier(metadataDbType, source.catalog, source.catalogQuoted);
+    // An unqualified source resolves in the tab's current external catalog on
+    // Doris-family federation: the statement executed there through the
+    // catalog execution context, so the column lookup must carry the same
+    // catalog or it searches the engine's internal catalog and finds no such
+    // database/table. Qualified sources keep the catalog parsed from the SQL.
+    const unqualifiedExecutionCatalog = !source.catalog && connectionIsDorisFamilyCatalogCapable(conn) ? tab.catalog : undefined;
+    const metadataCatalog = normalizeUppercaseFoldedMetadataIdentifier(metadataDbType, source.catalog ?? unqualifiedExecutionCatalog, source.catalogQuoted);
     const metadataSource: EditableQuerySource = {
       ...source,
       catalog: metadataCatalog,
@@ -5904,7 +5910,10 @@ export const useQueryStore = defineStore("query", () => {
         queryDisplaySourceColumns: displayInfo.mapping,
       };
     } catch (err) {
-      console.error("[DBX] ERROR fetching columns for grouped query metadata:", err);
+      // Display enrichment stays silent for the user, but a swallowed lookup
+      // failure must stay diagnosable: record it with the trace id and the
+      // execution database/catalog so namespace mismatches can be traced.
+      queryExecutionLog("warn", "metadata:display-columns:failed", { traceId, database: executionDatabase, catalog: tab.catalog, error: err });
       return undefined;
     }
   }
@@ -6095,7 +6104,10 @@ export const useQueryStore = defineStore("query", () => {
         queryDisplaySourceColumns: multiSourceInfo?.mapping,
       };
     } catch (err) {
-      console.error("[DBX] ERROR fetching columns for query metadata:", err);
+      // Metadata stays optional for the result grid, but the failure was
+      // previously only a bare console error with no trace context. Record the
+      // execution database/catalog so a lost catalog shows up in the debug log.
+      queryExecutionLog("warn", "metadata:columns:failed", { traceId, database: executionDatabase, catalog: tab.catalog, error: err });
       return {
         queryAnalysis: undefined,
         querySourceColumns: undefined,