Rajesh Balamohan created HIVE-21439:
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Summary: Provide an option to reduce lookup overhead for bucketed
tables
Key: HIVE-21439
URL: https://issues.apache.org/jira/browse/HIVE-21439
Project: Hive
Issue Type: Bug
Reporter: Rajesh Balamohan
If a table is bucketed, `OpTraitsRulesProcFactory::TableScanRule` ends up
verifying if the partitions have got the same number of files as the number of
buckets in table.
https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/optimizer/metainfo/annotation/OpTraitsRulesProcFactory.java#L185
In large tables, this turns out to be very time consuming operation. It would
be good to have an option to by pass this depending on need basis.
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