HeartSaVioR edited a comment on issue #25913: [WIP][SPARK-29221][SQL] LocalTableScanExec: handle the case where executors are accessing "null" rows URL: https://github.com/apache/spark/pull/25913#issuecomment-534524090 I guess the approach should be changed, as there seems to be plenty of pieces in physical plans which are not safe to execute in executors. Something might seem to be changed recently. https://github.com/apache/spark/blob/7c02c143aad92823bb58d14d0e66b0128af63772/sql/core/src/main/scala/org/apache/spark/sql/execution/aggregate/HashAggregateExec.scala#L93-L102 https://github.com/apache/spark/blob/c61270fd74a89a39e5fbbfa9402e801ec57ce34c/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkPlan.scala#L63-L72
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