James Taylor created PHOENIX-951:
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Summary: Don't push LIMIT as PageFilter for joins
Key: PHOENIX-951
URL: https://issues.apache.org/jira/browse/PHOENIX-951
Project: Phoenix
Issue Type: Bug
Affects Versions: 3.0.0, 4.0.0
Reporter: James Taylor
Assignee: Maryann Xue
Priority: Minor
When a join has a limit, you can't push the limit through a PageFilter since
you might not get a match when you join the LHS to the RHS. I think ideally
you'd want to push the LIMIT to the ScanRegionObserver (or
GroupedAggregateRegionObserver) and then stop the inner scan when the limit is
reached. There's a similar optimize for a GROUP BY that has a LIMIT with no
ORDER BY.
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