liujiayi771 commented on code in PR #5575:
URL: https://github.com/apache/incubator-gluten/pull/5575#discussion_r1590996039
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backends-velox/src/main/scala/org/apache/gluten/execution/HashAggregateExecTransformer.scala:
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@@ -60,6 +60,12 @@ abstract class HashAggregateExecTransformer(
resultExpressions,
child) {
+ override def output: Seq[Attribute] = {
+ // TODO: We should have a check to make sure the returned schema actually
matches the output
+ // data. Since "resultExpressions" is not actually in used by Velox.
+ super.output
Review Comment:
The `projectList` of agg post-project is the `resultExpressions`. Is the
intended expression here something like, when post-project hasn't been
inserted, the output of `HashAggregateExecTransformer` isn't actually equal to
`resultExpressions`?
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