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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