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Posted to dev@hive.apache.org by "Vineet Garg (JIRA)" <ji...@apache.org> on 2017/07/18 21:36:00 UTC

[jira] [Created] (HIVE-17119) Improve error message thrown by subqueries if there are not statistics

Vineet Garg created HIVE-17119:
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             Summary: Improve error message thrown by subqueries if there are not statistics
                 Key: HIVE-17119
                 URL: https://issues.apache.org/jira/browse/HIVE-17119
             Project: Hive
          Issue Type: Improvement
          Components: Logical Optimizer
            Reporter: Vineet Garg
            Assignee: Vineet Garg


Currently if there are no stats hive bails out of cbo and try non-cbo route. Since most of the subqueries are only supported in CBO and not in non-cbo we end up with completely different error message. This creates confusion.
One possible solution is to throw warnings that stats are missing before throwing subquery related error message.

cc [~pxiong]



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