Return Shallow Copies of Rows

brimdata · Feb 5, 2024 · d05e9d7 · d05e9d7
1 parent 270f84e
commit d05e9d7
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/packages/zed-js/src/query/channel.ts b/packages/zed-js/src/query/channel.ts
@@ -56,7 +56,9 @@ export class Channel extends EventEmitter {
     let timeId: ReturnType<typeof setTimeout>;
 
     const flush = () => {
-      collector({ rows: this.rows, shapesMap: this.shapesMap });
+      // Return shallow copies so that comsumers can do what they want
+      // with the rows and shapes
+      collector({ rows: [...this.rows], shapesMap: { ...this.shapesMap } });
       first = false;
       count = 0;
       clearTimeout(timeId);