Github user zhzhan commented on the issue: https://github.com/apache/spark/pull/16909 @tejasapatil Do you want to fix the BufferedRowIterator for WholeStageCodegenExec as well? As for inner join, the LinkedList currentRows would cause the same issue as it buffer the rows from inner join, and takes more memory (probably double if left and right has similar size). Also they can share the similar iterator data structure.
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