Remus Rusanu created HIVE-15723:
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Summary: Hive should report a warning about missing table/column
statistics to user.
Key: HIVE-15723
URL: https://issues.apache.org/jira/browse/HIVE-15723
Project: Hive
Issue Type: Bug
Components: Query Processor
Reporter: Remus Rusanu
Assignee: Remus Rusanu
Priority: Minor
Many Hive performance issues are due to missing statistics. Either all, table
or column statistics are missing. Potentially a new partition has been added
and customer forgot to gather stats for that partition.
A simple warning about a table or column missing statistics can be very helpful
and makes hive more user friendly. Hive already has this information, its a
matter of printing it out.
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