feat(objects): copy table column metadata (#12771)

* feat(objects): copy table info columns

* fix(objects): reset copied column selection on filter

* fix(objects): scope column shortcuts to selection

* fix(objects): support shortcuts from columns area

* fix(objects): copy selected columns through native copy

* docs: document copying table column info

* feat(objects): copy table info columns

* fix(objects): reset copied column selection on filter

* fix(objects): scope column shortcuts to selection

* fix(objects): support shortcuts from columns area

* fix(objects): copy selected columns through native copy

* docs: document copying table column info

* fix(objects): guard formulas in copied column metadata

* fix(objects): remove obsolete TSV escape helper

apps/desktop/src/components/objects/ObjectBrowser.vue

@@ -125,6 +125,7 @@ import { buildXlsxHeaderOverrides, hasXlsxHeaderComments, xlsxHeaderUsesCommentR
 import { showSqlInsertModeDialog, type SqlInsertDialect, type SqlInsertMode } from "@/lib/export/sqlInsertMode";
 import { csvNullLiteralForMode } from "@/lib/export/csvNullMode";
 import { copyToClipboard, eventTargetAllowsAppClipboardShortcut } from "@/lib/common/clipboard";
+import { encodeSpreadsheetTsvCell } from "@/lib/common/spreadsheetTsv";
 import {
   defaultPasteTableMode,
   pasteTableModeCopiesData,
@@ -324,6 +325,10 @@ const tablePartitionStatusResolved = ref(false);
 // is also shown, mirroring DataGrid/TableStructureEditor.
 const tableConstraintsForTab = computed(() => constraintsForConstraintsTab(tableConstraints.value, tableMetadataCapabilities.value.foreignKeys));
 const tableInfoSearchQuery = ref("");
+const selectedTableInfoColumns = ref<string[]>([]);
+watch(tableInfoSearchQuery, () => {
+  selectedTableInfoColumns.value = [];
+});
 const tableInfoDdlPreRef = ref<HTMLPreElement | null>(null);
 const activeTableInfoLoading = computed(() => {
   if (tableInfoTab.value === "info") return tableOverviewLoading.value;
@@ -1253,6 +1258,64 @@ const tableInfoTabListStyle = computed(() => ({
 }));
 
 const filteredTableColumns = computed(() => filterObjectBrowserTableColumns(tableColumns.value, tableInfoSearchQuery.value));
+
+function toggleTableInfoColumnSelection(name: string, event: MouseEvent) {
+  const current = selectedTableInfoColumns.value;
+  const index = current.indexOf(name);
+  if (event.ctrlKey || event.metaKey) {
+    selectedTableInfoColumns.value = index < 0 ? [...current, name] : current.filter((column) => column !== name);
+  } else if (event.shiftKey && current.length > 0) {
+    const visibleNames = filteredTableColumns.value.map((column) => column.name);
+    const anchor = visibleNames.indexOf(current[current.length - 1]!);
+    const target = visibleNames.indexOf(name);
+    selectedTableInfoColumns.value = anchor < 0 || target < 0 ? [name] : visibleNames.slice(Math.min(anchor, target), Math.max(anchor, target) + 1);
+  } else {
+    selectedTableInfoColumns.value = [name];
+  }
+}
+
+function onTableInfoColumnContextMenu(name: string, event: MouseEvent, openMenu: (event: MouseEvent) => void) {
+  if (!selectedTableInfoColumns.value.includes(name)) selectedTableInfoColumns.value = [name];
+  openMenu(event);
+}
+
+function copyTableInfoColumnDetails() {
+  const ordered = filteredTableColumns.value.filter((column) => selectedTableInfoColumns.value.includes(column.name));
+  if (ordered.length === 0) return;
+  const headers = ["#", t("grid.columnName"), t("grid.columnType"), t("grid.tableInfoNullable"), t("structureEditor.defaultValue"), t("grid.columnComment")];
+  const rows = ordered.map((column) => [String(filteredTableColumns.value.findIndex((item) => item.name === column.name) + 1), column.name, gaussdbMColumnType(column.data_type), column.is_nullable ? "YES" : "NO", tableColumnDefaultDisplayValue(column.column_default), column.comment ?? ""]);
+  const text = [headers, ...rows].map((row) => row.map(encodeSpreadsheetTsvCell).join("\t")).join("\n");
+  void copyToClipboard(text)
+    .then(() => toast(t("contextMenu.copyAdvancedInfo"), 2000))
+    .catch((error) => toast(t("grid.copyFailed", { message: error?.message || String(error) }), 5000));
+}
+
+function tableInfoColumnContextMenuItems(): ContextMenuItem[] {
+  return [{ label: t("contextMenu.copyAdvancedInfo"), icon: Copy, shortcut: "Ctrl+Shift+C", action: copyTableInfoColumnDetails }];
+}
+
+function onTableInfoColumnsCopy(event: ClipboardEvent) {
+  if (selectedTableInfoColumns.value.length === 0 || !event.clipboardData) return;
+  const names = filteredTableColumns.value.filter((column) => selectedTableInfoColumns.value.includes(column.name)).map((column) => column.name);
+  if (names.length === 0) return;
+  event.clipboardData.setData("text/plain", names.join("\n"));
+  event.preventDefault();
+}
+
+function onTableInfoColumnsKeydown(event: KeyboardEvent) {
+  const target = event.target;
+  if (event.defaultPrevented || selectedTableInfoColumns.value.length === 0 || !(target instanceof Element) || (!target.closest("[data-table-info-column]") && target !== event.currentTarget) || !(event.ctrlKey || event.metaKey) || event.altKey) return;
+  const key = event.key.toLowerCase();
+  if (key !== "c") return;
+  event.preventDefault();
+  event.stopPropagation();
+  if (key === "c" && !event.shiftKey) {
+    const names = filteredTableColumns.value.filter((column) => selectedTableInfoColumns.value.includes(column.name)).map((column) => column.name);
+    if (names.length) void copyToClipboard(names.join("\n")).catch((error) => toast(t("grid.copyFailed", { message: error?.message || String(error) }), 5000));
+    return;
+  }
+  copyTableInfoColumnDetails();
+}
 const tableOverviewRows = computed(() => {
   const stats = tableOverviewStats.value;
   const rows = [
@@ -1317,6 +1380,7 @@ const filteredTableDdlContent = computed(() => {
 });
 
 async function openTableInfo(row: ObjectBrowserRow, initialTab?: TableInfoTab) {
+  selectedTableInfoColumns.value = [];
   selectedRowId.value = row.id;
   // Toggle off if clicking the same table
   if (sidePanelRow.value?.id === row.id && sidePanelMode.value === "table-info" && !initialTab) {
@@ -1371,6 +1435,7 @@ async function selectTableInfoTab(tab: TableInfoTab) {
   const nextTab = tableInfoTabs.value.some((item) => item.id === tab) ? tab : tableInfoTabs.value[0]?.id;
   if (!nextTab) return;
   tableInfoTab.value = nextTab;
+  selectedTableInfoColumns.value = [];
   tableInfoSearchQuery.value = "";
   if (nextTab === "info") await fetchTableOverview();
   else if (nextTab === "ddl") await fetchTableDdl();
@@ -1715,6 +1780,7 @@ function onSidePanelResizeEnd() {
 }
 
 function closeSidePanel() {
+  selectedTableInfoColumns.value = [];
   sidePanelRow.value = null;
   sourceRow.value = null;
   sidePanelMode.value = "source";
@@ -3425,7 +3491,8 @@ function openPasteTableDialog() {
 }
 
 function onObjectBrowserKeydown(event: KeyboardEvent) {
-  if (event.defaultPrevented || !supportsBatchTableActions.value) return;
+  if (event.defaultPrevented) return;
+  if (!supportsBatchTableActions.value) return;
   if (eventTargetAllowsAppClipboardShortcut(event, "c")) {
     if (selectedTableCount.value === 0) return;
     event.preventDefault();
@@ -5206,7 +5273,7 @@ function getObjectBrowserMenuItems(item: ObjectBrowserRow): ContextMenuItem[] {
               </div>
             </div>
           </div>
-          <div v-else-if="tableInfoTab === 'columns'" class="flex-1 min-h-0 overflow-auto">
+          <div v-else-if="tableInfoTab === 'columns'" data-table-info-columns class="flex-1 min-h-0 overflow-auto" tabindex="0" @keydown="onTableInfoColumnsKeydown" @copy="onTableInfoColumnsCopy">
             <div v-if="tableColumnsLoading" class="h-full flex items-center justify-center">
               <Loader2 class="w-4 h-4 animate-spin text-muted-foreground" />
             </div>
@@ -5224,23 +5291,33 @@ function getObjectBrowserMenuItems(item: ObjectBrowserRow): ContextMenuItem[] {
                 </tr>
               </thead>
               <tbody>
-                <tr v-for="(column, index) in filteredTableColumns" :key="column.name" class="border-b hover:bg-gray-200 dark:hover:bg-gray-800/30" :title="column.name">
-                  <td class="px-3 py-2 text-muted-foreground w-8">{{ index + 1 }}</td>
-                  <td class="px-3 py-2 font-medium">
-                    <span class="inline-flex items-center gap-1.5">
-                      <KeyRound v-if="column.is_primary_key" class="h-3 w-3 text-amber-500" />
-                      {{ column.name }}
-                    </span>
-                    <div v-if="column.comment" class="mt-0.5 text-[11px] text-muted-foreground truncate">
-                      {{ column.comment }}
-                    </div>
-                  </td>
-                  <td class="px-3 py-2 font-mono text-[11px] text-muted-foreground">{{ gaussdbMColumnType(column.data_type) }}</td>
-                  <td class="px-3 py-2">{{ column.is_nullable ? "YES" : "NO" }}</td>
-                  <td data-table-info-column-default class="max-w-56 px-3 py-2 font-mono text-[11px]" :class="{ 'text-muted-foreground/70': column.column_default == null }" :title="column.column_default ?? undefined">
-                    <span class="block max-w-56 truncate">{{ tableColumnDefaultDisplayValue(column.column_default) }}</span>
-                  </td>
-                </tr>
+                <CustomContextMenu v-for="(column, index) in filteredTableColumns" :key="column.name" :items="tableInfoColumnContextMenuItems" v-slot="{ onContextMenu, isOpen }">
+                  <tr
+                    tabindex="0"
+                    :data-table-info-column="column.name"
+                    class="border-b cursor-default outline-none"
+                    :class="selectedTableInfoColumns.includes(column.name) || isOpen ? 'bg-primary/15' : 'hover:bg-gray-200 dark:hover:bg-gray-800/30'"
+                    :title="column.name"
+                    @click="toggleTableInfoColumnSelection(column.name, $event)"
+                    @contextmenu="onTableInfoColumnContextMenu(column.name, $event, onContextMenu)"
+                  >
+                    <td class="px-3 py-2 text-muted-foreground w-8">{{ index + 1 }}</td>
+                    <td class="px-3 py-2 font-medium">
+                      <span class="inline-flex items-center gap-1.5">
+                        <KeyRound v-if="column.is_primary_key" class="h-3 w-3 text-amber-500" />
+                        {{ column.name }}
+                      </span>
+                      <div v-if="column.comment" class="mt-0.5 text-[11px] text-muted-foreground truncate">
+                        {{ column.comment }}
+                      </div>
+                    </td>
+                    <td class="px-3 py-2 font-mono text-[11px] text-muted-foreground">{{ gaussdbMColumnType(column.data_type) }}</td>
+                    <td class="px-3 py-2">{{ column.is_nullable ? "YES" : "NO" }}</td>
+                    <td data-table-info-column-default class="max-w-56 px-3 py-2 font-mono text-[11px]" :class="{ 'text-muted-foreground/70': column.column_default == null }" :title="column.column_default ?? undefined">
+                      <span class="block max-w-56 truncate">{{ tableColumnDefaultDisplayValue(column.column_default) }}</span>
+                    </td>
+                  </tr>
+                </CustomContextMenu>
               </tbody>
             </table>
           </div>

apps/desktop/src/components/objects/__tests__/ObjectBrowser.tableCopyClipboard.component.spec.ts

@@ -9,6 +9,7 @@ import type { ConnectionConfig } from "@/types/database";
 const mocks = vi.hoisted(() => ({
   listObjects: vi.fn(),
   listSchemas: vi.fn(),
+  getColumns: vi.fn(),
   ensureConnected: vi.fn(),
   copyToClipboard: vi.fn(),
   toast: vi.fn(),
@@ -18,6 +19,7 @@ const mocks = vi.hoisted(() => ({
 vi.mock("@/lib/backend/api", () => ({
   listObjects: (...args: unknown[]) => mocks.listObjects(...args),
   listSchemas: (...args: unknown[]) => mocks.listSchemas(...args),
+  getColumns: (...args: unknown[]) => mocks.getColumns(...args),
   listObjectStatistics: vi.fn().mockResolvedValue([]),
 }));
 vi.mock("@/stores/connectionStore", () => ({
@@ -67,13 +69,6 @@ vi.mock("vue-virtual-scroller", () => ({
 }));
 vi.mock("@/components/ui/searchable-select", () => ({ SearchableSelect: { render: () => null } }));
 vi.mock("@/components/ui/ToolbarOverflowMenu.vue", () => ({ default: { render: () => null } }));
-vi.mock("@/components/ui/CustomContextMenu.vue", () => ({
-  default: defineComponent({
-    setup(_, { slots }) {
-      return () => slots.default?.({ onContextMenu: () => undefined, isOpen: false });
-    },
-  }),
-}));
 vi.mock("@/components/editor/QueryEditor.vue", () => ({ default: { render: () => null } }));
 vi.mock("@/components/editor/DangerConfirmDialog.vue", () => ({ default: { render: () => null } }));
 vi.mock("@/components/objects/ProcedureExecutionDialog.vue", () => ({ default: { render: () => null } }));
@@ -101,6 +96,7 @@ beforeEach(() => {
     { name: "audit", object_type: "TABLE" },
   ]);
   mocks.listSchemas.mockResolvedValue([]);
+  mocks.getColumns.mockResolvedValue([]);
   mocks.ensureConnected.mockResolvedValue(undefined);
   mocks.copyToClipboard.mockResolvedValue(undefined);
   invalidateObjectBrowserRowsCache({});
@@ -130,7 +126,152 @@ function rowFor(host: HTMLElement, name: string): HTMLElement {
   return row!;
 }
 
+async function openColumnInfo(host: HTMLElement, columnCount = 2) {
+  rowFor(host, "orders").dispatchEvent(new MouseEvent("click", { bubbles: true }));
+  await vi.waitFor(() => expect(host.querySelector("[data-object-table-info-panel]")).not.toBeNull());
+  const panel = host.querySelector<HTMLElement>("[data-object-table-info-panel]")!;
+  const columnsTab = [...panel.querySelectorAll<HTMLButtonElement>("button")].find((button) => button.textContent?.includes("grid.tableInfoColumns"));
+  expect(columnsTab).toBeDefined();
+  columnsTab!.click();
+  await vi.waitFor(() => expect(panel.querySelectorAll("[data-table-info-column]")).toHaveLength(columnCount));
+  return panel;
+}
+
 describe("ObjectBrowser table copy", () => {
+  it("copies selected table-info column names and escaped advanced metadata in display order", async () => {
+    connection.id = "mysql-copy-columns-keyboard";
+    mocks.getColumns.mockResolvedValue([
+      { name: "second", data_type: "VARCHAR(20)", is_nullable: false, column_default: "x\ty", is_primary_key: false, extra: null, comment: "line 1\nline 2" },
+      { name: "first", data_type: "NUMBER", is_nullable: true, column_default: null, is_primary_key: true, extra: null, comment: 'quote "value"' },
+    ]);
+    const host = await mountBrowser();
+    const panel = await openColumnInfo(host);
+    const columns = [...panel.querySelectorAll<HTMLElement>("[data-table-info-column]")];
+    columns[0]!.dispatchEvent(new MouseEvent("click", { bubbles: true }));
+    columns[1]!.dispatchEvent(new MouseEvent("click", { bubbles: true, ctrlKey: true }));
+    const columnsArea = panel.querySelector<HTMLElement>("[data-table-info-columns]")!;
+    columnsArea.focus();
+    const search = panel.querySelector<HTMLInputElement>("[data-table-info-search]")!;
+    const searchShortcut = new KeyboardEvent("keydown", { key: "c", ctrlKey: true, shiftKey: true, bubbles: true, cancelable: true });
+    search.dispatchEvent(searchShortcut);
+    expect(mocks.copyToClipboard).not.toHaveBeenCalled();
+    expect(searchShortcut.defaultPrevented).toBe(false);
+
+    columnsArea.dispatchEvent(new KeyboardEvent("keydown", { key: "c", ctrlKey: true, bubbles: true }));
+    await vi.waitFor(() => expect(mocks.copyToClipboard).toHaveBeenLastCalledWith("second\nfirst"));
+
+    const copied: string[] = [];
+    const copyEvent = new Event("copy", { bubbles: true, cancelable: true });
+    Object.defineProperty(copyEvent, "clipboardData", { value: { setData: (_type: string, value: string) => copied.push(value) } });
+    columnsArea.dispatchEvent(copyEvent);
+    expect(copyEvent.defaultPrevented).toBe(true);
+    expect(copied).toEqual(["second\nfirst"]);
+
+    columnsArea.dispatchEvent(new KeyboardEvent("keydown", { key: "c", ctrlKey: true, shiftKey: true, bubbles: true }));
+    await vi.waitFor(() => expect(mocks.copyToClipboard).toHaveBeenLastCalledWith('#\tgrid.columnName\tgrid.columnType\tgrid.tableInfoNullable\tstructureEditor.defaultValue\tgrid.columnComment\n1\tsecond\tVARCHAR(20)\tNO\t"x\ty"\t"line 1\nline 2"\n2\tfirst\tNUMBER\tYES\t—\t"quote ""value"""'));
+  });
+
+  it("neutralizes spreadsheet formulas only in advanced metadata TSV", async () => {
+    connection.id = "mysql-copy-columns-formula-guard";
+    mocks.getColumns.mockResolvedValue([{ name: "=1+1", data_type: "VARCHAR(20)", is_nullable: false, column_default: " +SUM(1,1)", is_primary_key: false, extra: null, comment: "\tCMD" }]);
+    const host = await mountBrowser();
+    const panel = await openColumnInfo(host, 1);
+    const column = panel.querySelector<HTMLElement>("[data-table-info-column]")!;
+    column.dispatchEvent(new MouseEvent("click", { bubbles: true }));
+
+    column.dispatchEvent(new KeyboardEvent("keydown", { key: "c", ctrlKey: true, bubbles: true }));
+    await vi.waitFor(() => expect(mocks.copyToClipboard).toHaveBeenLastCalledWith("=1+1"));
+
+    column.dispatchEvent(new KeyboardEvent("keydown", { key: "c", ctrlKey: true, shiftKey: true, bubbles: true }));
+    await vi.waitFor(() => expect(mocks.copyToClipboard).toHaveBeenLastCalledWith("#\tgrid.columnName\tgrid.columnType\tgrid.tableInfoNullable\tstructureEditor.defaultValue\tgrid.columnComment\n1\t'=1+1\tVARCHAR(20)\tNO\t' +SUM(1,1)\t" + '"\'\tCMD"'));
+  });
+
+  it("opens the advanced-copy context menu and copies only after its action is chosen", async () => {
+    connection.id = "mysql-copy-columns-context";
+    mocks.getColumns.mockResolvedValue([
+      { name: "id", data_type: "INT", is_nullable: false, column_default: null, is_primary_key: true, extra: null, comment: null },
+      { name: "note", data_type: "TEXT", is_nullable: true, column_default: null, is_primary_key: false, extra: null, comment: "memo" },
+      { name: "status", data_type: "TEXT", is_nullable: true, column_default: "new", is_primary_key: false, extra: null, comment: null },
+    ]);
+    const host = await mountBrowser();
+    const panel = await openColumnInfo(host, 3);
+    const columns = [...panel.querySelectorAll<HTMLElement>("[data-table-info-column]")];
+    columns[0]!.dispatchEvent(new MouseEvent("click", { bubbles: true }));
+    columns[1]!.dispatchEvent(new MouseEvent("click", { bubbles: true, ctrlKey: true }));
+    columns[1]!.dispatchEvent(new MouseEvent("contextmenu", { bubbles: true, cancelable: true, clientX: 12, clientY: 14 }));
+    expect(mocks.copyToClipboard).not.toHaveBeenCalled();
+    const action = await vi.waitFor(() => {
+      const button = [...document.querySelectorAll<HTMLButtonElement>("[data-dbx-context-menu] button")].find((item) => item.textContent?.includes("contextMenu.copyAdvancedInfo"));
+      expect(button).toBeDefined();
+      return button!;
+    });
+    action.click();
+    await vi.waitFor(() => expect(mocks.copyToClipboard).toHaveBeenCalledWith("#\tgrid.columnName\tgrid.columnType\tgrid.tableInfoNullable\tstructureEditor.defaultValue\tgrid.columnComment\n1\tid\tINT\tNO\t—\t\n2\tnote\tTEXT\tYES\t—\tmemo"));
+    columns[2]!.dispatchEvent(new MouseEvent("contextmenu", { bubbles: true, cancelable: true, clientX: 12, clientY: 14 }));
+    expect(mocks.copyToClipboard).toHaveBeenCalledTimes(1);
+    const secondAction = await vi.waitFor(() => {
+      const button = [...document.querySelectorAll<HTMLButtonElement>("[data-dbx-context-menu] button")].find((item) => item.textContent?.includes("contextMenu.copyAdvancedInfo"));
+      expect(button).toBeDefined();
+      return button!;
+    });
+    secondAction.click();
+    await vi.waitFor(() => expect(mocks.copyToClipboard).toHaveBeenLastCalledWith("#\tgrid.columnName\tgrid.columnType\tgrid.tableInfoNullable\tstructureEditor.defaultValue\tgrid.columnComment\n3\tstatus\tTEXT\tYES\tnew\t"));
+  });
+
+  it("clears the column selection when switching tables or closing the table-info panel", async () => {
+    connection.id = "mysql-copy-columns-reset";
+    mocks.getColumns.mockResolvedValue([
+      { name: "id", data_type: "INT", is_nullable: false, column_default: null, is_primary_key: true, extra: null, comment: null },
+      { name: "name", data_type: "TEXT", is_nullable: true, column_default: null, is_primary_key: false, extra: null, comment: null },
+    ]);
+    const host = await mountBrowser();
+    let panel = await openColumnInfo(host);
+    panel.querySelector<HTMLElement>('[data-table-info-column="id"]')!.dispatchEvent(new MouseEvent("click", { bubbles: true }));
+
+    rowFor(host, "users").dispatchEvent(new MouseEvent("click", { bubbles: true }));
+    await vi.waitFor(() => expect(host.querySelector("[data-object-table-info-panel]")).not.toBeNull());
+    panel = host.querySelector<HTMLElement>("[data-object-table-info-panel]")!;
+    const columnsTab = [...panel.querySelectorAll<HTMLButtonElement>("button")].find((button) => button.textContent?.includes("grid.tableInfoColumns"));
+    columnsTab!.click();
+    await vi.waitFor(() => expect(panel.querySelectorAll("[data-table-info-column]")).toHaveLength(2));
+    const id = panel.querySelector<HTMLElement>('[data-table-info-column="id"]')!;
+    const switchShortcut = new KeyboardEvent("keydown", { key: "c", ctrlKey: true, bubbles: true, cancelable: true });
+    id.dispatchEvent(switchShortcut);
+    expect(mocks.copyToClipboard).not.toHaveBeenCalled();
+    expect(switchShortcut.defaultPrevented).toBe(false);
+
+    [...panel.querySelectorAll<HTMLButtonElement>("button")].find((button) => button.classList.contains("h-5"))!.click();
+    await vi.waitFor(() => expect(host.querySelector("[data-object-table-info-panel]")).toBeNull());
+    rowFor(host, "users").dispatchEvent(new MouseEvent("click", { bubbles: true }));
+    await vi.waitFor(() => expect(host.querySelector("[data-object-table-info-panel]")).not.toBeNull());
+    panel = await openColumnInfo(host);
+    panel.querySelector<HTMLElement>('[data-table-info-column="id"]')!.dispatchEvent(new KeyboardEvent("keydown", { key: "c", ctrlKey: true, bubbles: true }));
+    expect(mocks.copyToClipboard).not.toHaveBeenCalled();
+  });
+
+  it("clears hidden column selection when the table-info filter changes", async () => {
+    connection.id = "mysql-copy-columns-filter-reset";
+    mocks.getColumns.mockResolvedValue([
+      { name: "id", data_type: "INT", is_nullable: false, column_default: null, is_primary_key: true, extra: null, comment: null },
+      { name: "name", data_type: "TEXT", is_nullable: true, column_default: null, is_primary_key: false, extra: null, comment: null },
+    ]);
+    const host = await mountBrowser();
+    const panel = await openColumnInfo(host);
+    panel.querySelector<HTMLElement>('[data-table-info-column="id"]')!.dispatchEvent(new MouseEvent("click", { bubbles: true }));
+    const search = panel.querySelector<HTMLInputElement>("[data-table-info-search]")!;
+    search.value = "name";
+    search.dispatchEvent(new Event("input", { bubbles: true }));
+    await vi.waitFor(() => expect(panel.querySelectorAll("[data-table-info-column]")).toHaveLength(1));
+    search.value = "";
+    search.dispatchEvent(new Event("input", { bubbles: true }));
+    await vi.waitFor(() => expect(panel.querySelectorAll("[data-table-info-column]")).toHaveLength(2));
+    const name = panel.querySelector<HTMLElement>('[data-table-info-column="name"]')!;
+    const filterShortcut = new KeyboardEvent("keydown", { key: "c", ctrlKey: true, bubbles: true, cancelable: true });
+    name.dispatchEvent(filterShortcut);
+    expect(mocks.copyToClipboard).not.toHaveBeenCalled();
+    expect(filterShortcut.defaultPrevented).toBe(false);
+  });
+
   it("writes the selected table names to the system clipboard on Ctrl+C", async () => {
     const host = await mountBrowser();
     rowFor(host, "orders").dispatchEvent(new MouseEvent("click", { bubbles: true, ctrlKey: true }));

apps/desktop/src/i18n/locales/az.ts

@@ -3643,6 +3643,7 @@ export default withEnglishFallback({
     closeAllRegularTabs: "Bütün adi vərəqləri bağla",
     closeAllFixedTabs: "Bütün sabit vərəqləri bağla",
     copyName: "Adı kopyala",
+    copyAdvancedInfo: "Təkmil məlumatı kopyala",
     name: "Ad",
     fullPath: "Tam yol",
     copyFinalProxyPort: "Son proksi portunu kopyala",

apps/desktop/src/i18n/locales/en.ts

@@ -4562,6 +4562,7 @@ export default {
     closeAllRegularTabs: "Close All Regular Tabs",
     closeAllFixedTabs: "Close All Fixed Tabs",
     copyName: "Copy Name",
+    copyAdvancedInfo: "Copy Advanced Info",
     name: "Name",
     fullPath: "Full Path",
     copyFinalProxyPort: "Copy Final Proxy Port",

apps/desktop/src/i18n/locales/es.ts

@@ -4319,6 +4319,7 @@ export default withEnglishFallback({
     closeAllRegularTabs: "Cerrar todas las pestañas normales",
     closeAllFixedTabs: "Cerrar todas las pestañas fijadas",
     copyName: "Copiar nombre",
+    copyAdvancedInfo: "Copiar información avanzada",
     name: "Nombre",
     fullPath: "Ruta completa",
     copyFinalProxyPort: "Copiar puerto proxy final",

apps/desktop/src/i18n/locales/id.ts

@@ -3963,6 +3963,7 @@ export default withEnglishFallback({
     closeAllRegularTabs: "Tutup Semua Tab Reguler",
     closeAllFixedTabs: "Tutup Semua Tab Tetap",
     copyName: "Salin Nama",
+    copyAdvancedInfo: "Salin info lanjutan",
     name: "Nama",
     fullPath: "Path Lengkap",
     copyFinalProxyPort: "Salin Port Proxy Akhir",

apps/desktop/src/i18n/locales/it.ts

@@ -4163,6 +4163,7 @@ export default withEnglishFallback({
     closeAllRegularTabs: "Chiudi Tutte le Schede Normali",
     closeAllFixedTabs: "Chiudi Tutte le Schede Fisse",
     copyName: "Copia Nome",
+    copyAdvancedInfo: "Copia informazioni avanzate",
     name: "Nome",
     fullPath: "Percorso completo",
     copyFinalProxyPort: "Copia porta proxy finale",

apps/desktop/src/i18n/locales/ja.ts

@@ -4184,6 +4184,7 @@ export default withEnglishFallback({
     closeAllRegularTabs: "すべての通常タブを閉じる",
     closeAllFixedTabs: "すべての固定タブを閉じる",
     copyName: "名前をコピー",
+    copyAdvancedInfo: "詳細情報をコピー",
     name: "名前",
     fullPath: "フルパス",
     copyFinalProxyPort: "最終プロキシポートをコピー",

apps/desktop/src/i18n/locales/ko.ts

@@ -4110,6 +4110,7 @@ export default withEnglishFallback({
     closeAllRegularTabs: "모든 일반 탭 닫기",
     closeAllFixedTabs: "모든 고정 탭 닫기",
     copyName: "이름 복사",
+    copyAdvancedInfo: "고급 정보 복사",
     name: "이름",
     fullPath: "전체 경로",
     copyFinalProxyPort: "최종 프록시 포트 복사",

apps/desktop/src/i18n/locales/pl.ts

@@ -4031,6 +4031,7 @@ export default withEnglishFallback({
     closeAllRegularTabs: "Zamknij wszystkie zwykłe karty",
     closeAllFixedTabs: "Zamknij wszystkie przypięte karty",
     copyName: "Kopiuj nazwę",
+    copyAdvancedInfo: "Kopiuj informacje zaawansowane",
     name: "Nazwa",
     fullPath: "Pełna ścieżka",
     copyFinalProxyPort: "Kopiuj końcowy port proxy",

apps/desktop/src/i18n/locales/pt-BR.ts

@@ -4165,6 +4165,7 @@ export default withEnglishFallback({
     copyFinalProxyPort: "Copiar porta final do proxy",
     finalProxyPortCopied: "Porta final do proxy {port} copiada",
     copyName: "Copiar Nome",
+    copyAdvancedInfo: "Copiar informações avançadas",
     name: "Nome",
     fullPath: "Caminho completo",
     setDefaultDatabase: "Definir como Banco de Dados Padrão",

apps/desktop/src/i18n/locales/ru.ts

@@ -4273,6 +4273,7 @@ export default withEnglishFallback({
     closeAllRegularTabs: "Закрыть все обычные вкладки",
     closeAllFixedTabs: "Закрыть все закреплённые вкладки",
     copyName: "Копировать имя",
+    copyAdvancedInfo: "Копировать расширенную информацию",
     name: "Имя",
     fullPath: "Полный путь",
     copyFinalProxyPort: "Копировать итоговый порт прокси",

apps/desktop/src/i18n/locales/th.ts

@@ -4484,6 +4484,7 @@ export default withEnglishFallback({
     closeAllRegularTabs: "ปิดแท็บปกติทั้งหมด",
     closeAllFixedTabs: "ปิดแท็บถาวรทั้งหมด",
     copyName: "คัดลอกชื่อ",
+    copyAdvancedInfo: "คัดลอกข้อมูลขั้นสูง",
     name: "ชื่อ",
     fullPath: "Path เต็ม",
     copyFinalProxyPort: "คัดลอก Final Proxy Port",

apps/desktop/src/i18n/locales/tr.ts

@@ -3613,6 +3613,7 @@ export default withEnglishFallback({
     closeAllRegularTabs: "Tüm Normal Sekmeleri Kapat",
     closeAllFixedTabs: "Tüm Sabit Sekmeleri Kapat",
     copyName: "Adı Kopyala",
+    copyAdvancedInfo: "Gelişmiş bilgileri kopyala",
     name: "Ad",
     fullPath: "Tam Yol",
     copyFinalProxyPort: "Son Proxy Portunu Kopyala",

apps/desktop/src/i18n/locales/zh-CN.ts

@@ -4491,6 +4491,7 @@ export default withEnglishFallback({
     closeAllRegularTabs: "关闭全部普通标签页",
     closeAllFixedTabs: "关闭全部固定标签页",
     copyName: "复制名称",
+    copyAdvancedInfo: "复制高级信息",
     name: "名称",
     fullPath: "完整路径",
     copyFinalProxyPort: "复制最终代理端口",

apps/desktop/src/i18n/locales/zh-TW.ts

@@ -4161,6 +4161,7 @@ export default withEnglishFallback({
     closeAllRegularTabs: "關閉全部普通分頁",
     closeAllFixedTabs: "關閉全部固定分頁",
     copyName: "複製名稱",
+    copyAdvancedInfo: "複製進階資訊",
     name: "名稱",
     fullPath: "完整路徑",
     copyFinalProxyPort: "複製最終代理連接埠",

apps/desktop/src/lib/common/spreadsheetTsv.ts

@@ -0,0 +1,18 @@
+export function encodeSpreadsheetTsvCell(value: string | undefined): string {
+  if (value === undefined) return "";
+  const guarded = guardSpreadsheetFormula(value);
+  return /[\t\r\n"]/.test(guarded) ? `"${guarded.replace(/"/g, '""')}"` : guarded;
+}
+
+function guardSpreadsheetFormula(value: string): string {
+  const candidate = value.replace(/^ +/, "");
+  if (candidate.startsWith("-") && isExactSpreadsheetDecimal(candidate.slice(1))) return value;
+  if (candidate.startsWith("@") && (candidate.length === 1 || candidate.charCodeAt(1) > 0x7f)) return value;
+  return /^[=+\-@\t\r]/.test(candidate) ? `'${value}` : value;
+}
+
+function isExactSpreadsheetDecimal(value: string): boolean {
+  if (!/^\d+(?:\.\d+)?$/.test(value)) return false;
+  const significant = value.replace(".", "").replace(/^0+/, "");
+  return significant.length <= 15;
+}

docs/table-column-copy.md

@@ -0,0 +1,9 @@
+# 复制表字段信息
+
+在对象浏览器中选择表，在右侧详情面板打开“字段”页签。单击选择字段；按住 Ctrl/⌘ 多选，按住 Shift 选择连续范围。
+
+- `Ctrl+C`：按显示顺序复制所选字段名，每行一个。
+- `Ctrl+Shift+C`：复制完整字段信息为 TSV，包含 `#`、列名、类型、可空、默认值和注释；注释独立为一列，含 Tab、换行或双引号的单元格会按 TSV 规则转义。
+- 右键所选字段并选择“复制高级信息”：执行与 `Ctrl+Shift+C` 相同的复制。
+
+![对象浏览器中的字段多选与“复制高级信息”菜单](images/table-column-copy.jpg)