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https://issues.apache.org/jira/browse/PHOENIX-2666?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15151142#comment-15151142
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Mujtaba Chohan commented on PHOENIX-2666:
-----------------------------------------
[~jamestaylor] After this check-in performance is even better than before for
the case described in jira (single column per column fam,) however for the case
where all columns belong to a single column family, performance is still close
to 2x off for {{select count * from T where last_column < ?}}
> Performance regression: Aggregate query with filter on table with multiple
> column families
> ------------------------------------------------------------------------------------------
>
> Key: PHOENIX-2666
> URL: https://issues.apache.org/jira/browse/PHOENIX-2666
> Project: Phoenix
> Issue Type: Bug
> Affects Versions: 4.7.0
> Reporter: Mujtaba Chohan
> Assignee: James Taylor
> Fix For: 4.7.0
>
> Attachments: PHOENIX-2666.patch
>
>
> In the test, table contains total of 6 columns with one column per column
> family.
> Running a query {code}select count(*) from T where last_column < ?{code} is
> 4x slower after commit for PHOENIX-1312
> (https://git-wip-us.apache.org/repos/asf?p=phoenix.git;a=commit;h=3fdaecdaaa2a2f07070df67f861252fd44e338c3)
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