Zoltan Haindrich created HIVE-24812:
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Summary: Disable sharedworkoptimizer remove semijoin by default
Key: HIVE-24812
URL: https://issues.apache.org/jira/browse/HIVE-24812
Project: Hive
Issue Type: Sub-task
Reporter: Zoltan Haindrich
Assignee: Zoltan Haindrich
SJ removal backfired a bit when I was testing stuff - because of the additional
opportunities paralleledges may enable ; because it will increased the shuffled
memory amount and/or even make MJ broadcast inputs larger
set hive.optimize.shared.work.semijoin=false by default for now
right now it's better to leave dppunion to pick up these cases instead of
removing the SJ fully - after HIVE-24376 we might enable it back
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