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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