Details
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Improvement
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Status: Closed
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Major
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Resolution: Fixed
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None
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None
Description
Currently the map join processor processes all rows of the big table, even when the hash table is empty. If it is an inner join, we should be able to skip the join processing, since the result should be empty.
Attachments
Attachments
Issue Links
- relates to
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HIVE-12905 Issue with mapjoin in tez under certain conditions
- Closed