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https://reviews.apache.org/r/941/
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Review request for hive and Paul Yang.
Summary
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Improve the efficiency of the function that handles dropping multiple
partitions by finding the partitions to drop at the JDO level instead of
iterating through all given partitions and existing partitions.
This addresses bug HIVE-2219.
https://issues.apache.org/jira/browse/HIVE-2219
Diffs
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trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/DDLTask.java 1138144
Diff: https://reviews.apache.org/r/941/diff
Testing
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Still passes drop_multi_partitions.q. Tested speed on dropping ~10k partitions
in a table with ~400k partitions. This section of code took ~10 minutes after
the change, and some amount > 30 minutes before.
Thanks,
Sohan
