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Posted to gitbox@hive.apache.org by GitBox <gi...@apache.org> on 2021/07/27 01:59:58 UTC

[GitHub] [hive] rbalamohan opened a new pull request #2533: HIVE-25014: Optimise ObjectStore::updateTableColumnStatistics

rbalamohan opened a new pull request #2533:
URL: https://github.com/apache/hive/pull/2533


   ### Why are the changes needed?
   https://issues.apache.org/jira/browse/HIVE-25014
   
   Table details were fetched multiple times within column stats updation. Depending on the width of the table, this was called multiple times. Datanuc* moves from persistent -> detached state on commit. https://www.datanucleus.org/products/accessplatform_4_2/jpa/object_lifecycle.html.
   Since we commit at the end of all processing, fetching table details once is good enough.
   
   ### Does this PR introduce _any_ user-facing change?
   No
   
   ### How was this patch tested?
   small internal cluster


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[GitHub] [hive] maheshk114 merged pull request #2533: HIVE-25014: Optimise ObjectStore::updateTableColumnStatistics

Posted by GitBox <gi...@apache.org>.
maheshk114 merged pull request #2533:
URL: https://github.com/apache/hive/pull/2533


   


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