fix(postgres): quote data grid condition completions

apps/desktop/src/composables/__tests__/useDataGridConditionEditor.spec.ts

@@ -70,6 +70,39 @@ describe("useDataGridConditionEditor", () => {
     expect(editor.suggestions.value).toEqual([{ value: "customer_id = 1", kind: "history" }]);
   });
 
+  it.each(["where", "orderBy"] as const)("displays raw PostgreSQL column names but inserts their quoted %s text", async (kind) => {
+    const value = ref("");
+    const editor = useDataGridConditionEditor({
+      kind,
+      value,
+      columns: [{ name: "OrderId", insertText: '"OrderId"', comment: "Mixed-case identifier" }],
+      historyScope: {},
+    });
+
+    value.value = kind === "where" ? "status = Order" : "created_at DESC, Order";
+    await nextTick();
+    await vi.waitFor(() => expect(editor.suggestions.value).toEqual([{ value: "OrderId", insertText: '"OrderId"', kind: "column", comment: "Mixed-case identifier" }]));
+
+    expect(editor.accept()).toBe(true);
+    expect(value.value).toBe(kind === "where" ? 'status = "OrderId"' : 'created_at DESC, "OrderId"');
+  });
+
+  it("restores quoted history verbatim instead of quoting it again", () => {
+    const scope = { connectionId: "connection", database: "db", tableName: "orders" };
+    rememberDataGridConditionHistory("orderBy", scope, '"OrderId" DESC');
+    const value = ref("");
+    const editor = useDataGridConditionEditor({
+      kind: "orderBy",
+      value,
+      columns: [{ name: "OrderId", insertText: '"OrderId"' }],
+      historyScope: scope,
+    });
+
+    editor.openHistory();
+    expect(editor.accept(0)).toBe(true);
+    expect(value.value).toBe('"OrderId" DESC');
+  });
+
   it.each(["where", "orderBy"] as const)("normalizes %s comments from different metadata providers", async (kind) => {
     const value = ref("");
     const editor = useDataGridConditionEditor({

apps/desktop/src/composables/useDataGridConditionEditor.ts

@@ -5,6 +5,7 @@ export type DataGridConditionSuggestionKind = "column" | "history";
 
 export interface DataGridConditionColumnSuggestion {
   name: string;
+  insertText?: string;
   comment?: string | null;
 }
 
@@ -12,6 +13,7 @@ export type DataGridConditionColumnOption = string | DataGridConditionColumnSugg
 
 export interface DataGridConditionSuggestion {
   value: string;
+  insertText?: string;
   kind: DataGridConditionSuggestionKind;
   comment?: string;
 }
@@ -97,7 +99,8 @@ export function useDataGridConditionEditor(options: UseDataGridConditionEditorOp
       if (!normalizedValue.startsWith(normalizedToken) || normalizedValue === normalizedToken || seen.has(value)) continue;
       seen.add(value);
       const comment = normalizedColumnComment(column);
-      suggestions.push({ value, kind: "column", ...(comment ? { comment } : {}) });
+      const insertText = typeof column === "string" ? value : column.insertText;
+      suggestions.push({ value, kind: "column", ...(insertText !== undefined && insertText !== value ? { insertText } : {}), ...(comment ? { comment } : {}) });
     }
     return suggestions;
   }
@@ -177,7 +180,8 @@ export function useDataGridConditionEditor(options: UseDataGridConditionEditorOp
     const suggestion = suggestions.value[index];
     if (!suggestion) return false;
     suppressNextValueSuggestion = true;
-    options.value.value = suggestion.kind === "history" ? suggestion.value : replaceActiveToken(options.kind, options.value.value, suggestion.value);
+    // History is already executable SQL; only fresh column suggestions apply dialect quoting.
+    options.value.value = suggestion.kind === "history" ? suggestion.value : replaceActiveToken(options.kind, options.value.value, suggestion.insertText ?? suggestion.value);
     dismiss();
     return true;
   }