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Posted to dev@hive.apache.org by "Laljo John Pullokkaran (JIRA)" <ji...@apache.org> on 2014/08/21 00:41:26 UTC

[jira] [Created] (HIVE-7813) Hive join key not null shouldn't be generated for partition column

Laljo John Pullokkaran created HIVE-7813:
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             Summary: Hive join key not null shouldn't be generated for partition column
                 Key: HIVE-7813
                 URL: https://issues.apache.org/jira/browse/HIVE-7813
             Project: Hive
          Issue Type: Bug
            Reporter: Laljo John Pullokkaran
            Assignee: Ashutosh Chauhan


Hive generates not null predicate on join key to avoid scanning in nulls.
However for partition columns this is not needed as partition column will always be non null. Without this, PPR may evaluate not null predicate.



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