Ashutosh Chauhan created HIVE-15227: ---------------------------------------
Summary: Optimize join + gby into semijoin
Key: HIVE-15227
URL: https://issues.apache.org/jira/browse/HIVE-15227
Project: Hive
Issue Type: Bug
Components: Logical Optimizer
Reporter: Ashutosh Chauhan
Assignee: Ashutosh Chauhan
Calcite has a rule which can do this transformation. Lets take advantage of
this since Hive has native Left semi join operator.
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