maheshk114 commented on a change in pull request #1147:
URL: https://github.com/apache/hive/pull/1147#discussion_r466822516
##########
File path: ql/src/java/org/apache/hadoop/hive/ql/parse/CalcitePlanner.java
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@@ -2129,6 +2133,16 @@ private RelNode applyPreJoinOrderingTransforms(RelNode
basePlan, RelMetadataProv
HiveRemoveSqCountCheck.INSTANCE);
}
+ // 10. Convert left outer join + null filter on right side table column
to anti join. Add this
+ // rule after all the optimization for which calcite support for anti
join is missing.
+ // Needs to be done before ProjectRemoveRule as it expect a project over
filter.
+ // This is done before join re-ordering as join re-ordering is
converting the left outer
Review comment:
As discussed, i have created a Jira
https://issues.apache.org/jira/browse/HIVE-24013
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