Alexander Pivovarov created HIVE-10159:
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Summary: HashTableSinkDesc and MapJoinDesc keyTableDesc can be
replaced by JoinDesc.keyTableDesc
Key: HIVE-10159
URL: https://issues.apache.org/jira/browse/HIVE-10159
Project: Hive
Issue Type: Improvement
Components: Query Planning
Reporter: Alexander Pivovarov
Assignee: Alexander Pivovarov
Priority: Minor
MapJoinDesc and HashTableSinkDesc are derived from JoinDesc
HashTableSinkDesc and MapJoinDesc have keyTblDesc field.
JoinDesc has keyTableDesc field.
I think HashTableSinkDesc and MapJoinDesc can use superclass (JoinDesc)
keyTableDesc field instead of defining their own keyTblDesc.
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