Eugene Koifman created HIVE-14946:
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Summary: Optimizations
Key: HIVE-14946
URL: https://issues.apache.org/jira/browse/HIVE-14946
Project: Hive
Issue Type: Sub-task
Components: Query Planning, Transactions
Reporter: Eugene Koifman
For example, if there is only WHEN NOT MATCHED clause, the base generating
expression can be an INNER JOIN
Generally, we should make sure the optimizer is able to work with the plan for
Merge statement
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