liyunzhang_intel created HIVE-16600:
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Summary: Refactor SetSparkReducerParallelism#needSetParallelism to
enable parallel order by in multi_insert cases
Key: HIVE-16600
URL: https://issues.apache.org/jira/browse/HIVE-16600
Project: Hive
Issue Type: Sub-task
Reporter: liyunzhang_intel
in multi_insert cases multi_insert_gby2.q, the parallelism of SORT operator is
1 even we set "hive.optimize.sampling.orderby" = true. This is because the
logic of SetSparkReducerParallelism#needSetParallelism does not support this
case.
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