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Posted to dev@hive.apache.org by "BELUGA BEHR (JIRA)" <ji...@apache.org> on 2017/05/12 20:18:04 UTC

[jira] [Created] (HIVE-16663) String Caching For Rows

BELUGA BEHR created HIVE-16663:
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             Summary: String Caching For Rows
                 Key: HIVE-16663
                 URL: https://issues.apache.org/jira/browse/HIVE-16663
             Project: Hive
          Issue Type: Improvement
          Components: Beeline
    Affects Versions: 2.0.1
            Reporter: BELUGA BEHR
            Priority: Minor


It is very common that there are many repeated values in the result set of a query.  As it currently stands, beeline does not attempt to cache any of these values and therefore it consumes a lot of memory.

Adding a string cache may save a lot of memory.  There are organizations that use beeline to perform ETL processing of result sets into CSV.  This will better support those organizations.



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