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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-6289) StatsOptimizer may benefit from fetching stats for multiple columns at once
Date Thu, 23 Jan 2014 19:18:39 GMT
Sergey Shelukhin created HIVE-6289:
--------------------------------------

             Summary: StatsOptimizer may benefit from fetching stats for multiple columns
at once
                 Key: HIVE-6289
                 URL: https://issues.apache.org/jira/browse/HIVE-6289
             Project: Hive
          Issue Type: Improvement
          Components: Metastore, Statistics
            Reporter: Sergey Shelukhin


After HIVE-6157, StatsOptimizer would retrieve partition column stats in bulk for all requisite
partitions, but it would still retrieve stats for each column individually as it does the
optimization for that particular column. 
It might benefit from batching columns too (APIs for that would exist).



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