maropu commented on issue #23731: [SPARK-26572][SQL] fix aggregate codegen result evaluation URL: https://github.com/apache/spark/pull/23731#issuecomment-460206920 This issue happens in case of stateful exprs only? If so, could you modify the code to apply the current fix only if `HashAggregateExec` has stateful exprs? I worry about the performance regression @mgaido91 pointed out, too. It seems the current fix affect the other queries, its a corner case though....
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