feat(oceanbase-oracle): split execution time from client wait

apps/desktop/src/lib/__tests__/dataGrid/canvasDataGridRendererFrozen.spec.ts

@@ -146,6 +146,28 @@ describe("drawCanvasDataGrid with frozen columns", () => {
     expect(resolveCanvasBackingStoreMetrics({ width: 801, height: 399, pixelRatio: 5 })).toEqual({ pixelWidth: 3204, pixelHeight: 1596, scaleX: 4, scaleY: 4, measured: false });
   });
 
+  it("reports a completed draw only after obtaining a Canvas context", () => {
+    const canvas = createMockCanvas();
+    const options = createBaseOptions({ canvas, rowCount: 0, rowAt: () => undefined });
+    const fillRect = vi.fn();
+    vi.spyOn(canvas, "getContext")
+      .mockReturnValueOnce(null)
+      .mockReturnValueOnce(
+        new Proxy(
+          {},
+          {
+            get: (_target, key) => (key === "fillRect" ? fillRect : key === "measureText" ? () => ({ width: 0 }) : () => {}),
+            set: () => true,
+          },
+        ) as unknown as CanvasRenderingContext2D,
+      );
+
+    expect(drawCanvasDataGrid(options)).toBe(false);
+    expect(fillRect).not.toHaveBeenCalled();
+    expect(drawCanvasDataGrid(options)).toBe(true);
+    expect(fillRect).toHaveBeenCalled();
+  });
+
   it("draws without errors when frozenColumnCount is 0", () => {
     const canvas = createMockCanvas();
     const options = createBaseOptions({ canvas, frozenColumnCount: 0 });

apps/desktop/src/lib/__tests__/tabs/tabResultCache.spec.ts

@@ -81,6 +81,8 @@ describe("tab result cache statement execution metadata", () => {
           rows: [[1]],
           affected_rows: 0,
           execution_time_ms: 1,
+          server_execute_time_us: 370,
+          client_request_wait_ms: 45,
           statement_index: 0,
           sourceStatement: "SELECT 1",
         },
@@ -101,6 +103,7 @@ describe("tab result cache statement execution metadata", () => {
     const restored = decodeTabResultSnapshot(encoded);
 
     expect(restored?.resultEditorFingerprint).toBe("15:0123456789abcdef");
+    expect(restored?.results?.[0]).toMatchObject({ server_execute_time_us: 370, client_request_wait_ms: 45 });
     expect(restored?.results?.map((result) => ({ statementIndex: result.statement_index, error: result.execution_error }))).toEqual([
       { statementIndex: 0, error: undefined },
       { statementIndex: 1, error: true },

apps/desktop/src/lib/dataGrid/canvasDataGridRenderer.ts

@@ -324,7 +324,7 @@ function resolveCanvasRenderState(canvas: HTMLCanvasElement, isDark: boolean, st
   return state;
 }
 
-export function drawCanvasDataGrid(options: DrawCanvasDataGridOptions) {
+export function drawCanvasDataGrid(options: DrawCanvasDataGridOptions): boolean {
   const {
     canvas,
     scroller,
@@ -387,7 +387,7 @@ export function drawCanvasDataGrid(options: DrawCanvasDataGridOptions) {
   if (canvas.style.height !== canvasHeight) canvas.style.height = canvasHeight;
 
   const ctx = canvas.getContext("2d");
-  if (!ctx) return;
+  if (!ctx) return false;
   ctx.setTransform(scaleX, 0, 0, scaleY, 0, 0);
   ctx.imageSmoothingEnabled = false;
   ctx.clearRect(0, 0, width, height);
@@ -742,4 +742,5 @@ export function drawCanvasDataGrid(options: DrawCanvasDataGridOptions) {
     }
     ctx.restore();
   }
+  return true;
 }

apps/desktop/src/lib/tabs/tabResultCache.ts

@@ -69,6 +69,8 @@ interface ColumnarQueryResult {
   mongo_copy_documents?: unknown[];
   affected_rows: number;
   execution_time_ms: number;
+  server_execute_time_us?: number;
+  client_request_wait_ms?: number;
   truncated?: boolean;
   has_more?: boolean;
   sourceLabel?: string;
@@ -355,6 +357,8 @@ function stripSessionIds(result: QueryResult | undefined): QueryResult | undefin
     mongo_copy_documents: result.mongo_copy_documents ? clonePlain(result.mongo_copy_documents) : undefined,
     affected_rows: result.affected_rows,
     execution_time_ms: result.execution_time_ms,
+    server_execute_time_us: result.server_execute_time_us,
+    client_request_wait_ms: result.client_request_wait_ms,
     truncated: result.truncated,
     session_id: undefined,
     has_more: result.has_more,
@@ -400,6 +404,8 @@ function toColumnarResult(result: QueryResult | undefined): ColumnarQueryResult
     mongo_copy_documents: result.mongo_copy_documents ? clonePlain(result.mongo_copy_documents) : undefined,
     affected_rows: result.affected_rows,
     execution_time_ms: result.execution_time_ms,
+    server_execute_time_us: result.server_execute_time_us,
+    client_request_wait_ms: result.client_request_wait_ms,
     truncated: result.truncated,
     has_more: result.has_more,
     sourceLabel: result.sourceLabel,
@@ -426,6 +432,8 @@ function fromColumnarResult(result: ColumnarQueryResult | undefined): QueryResul
     mongo_copy_documents: result.mongo_copy_documents ? clonePlain(result.mongo_copy_documents) : undefined,
     affected_rows: result.affected_rows,
     execution_time_ms: result.execution_time_ms,
+    server_execute_time_us: result.server_execute_time_us,
+    client_request_wait_ms: result.client_request_wait_ms,
     truncated: result.truncated,
     session_id: undefined,
     has_more: result.has_more,