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Posted to dev@phoenix.apache.org by "James Taylor (JIRA)" <ji...@apache.org> on 2016/02/22 18:02:18 UTC

[jira] [Created] (PHOENIX-2706) Implement client-side mechanism to know if stats are enabled

James Taylor created PHOENIX-2706:
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             Summary: Implement client-side mechanism to know if stats are enabled
                 Key: PHOENIX-2706
                 URL: https://issues.apache.org/jira/browse/PHOENIX-2706
             Project: Phoenix
          Issue Type: Bug
            Reporter: James Taylor


Since Phoenix does query planning and explain plan generation on the client-side, we need a way to distinguish between a table being too small to have stats and stats being disabled. This new API will provide that on ConnectionQueryServices and be updated in the following places:
- during initial cluster connection (ConnectionQueryServices.init()).
- during UPDATE STATISTICS (based on return value)
- when guideposts are traversed in BaseResultIterators.getParallelScans(). The value would only traverse from false to true in this case if we get back guideposts on the PTable.



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