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https://issues.apache.org/jira/browse/PHOENIX-1594?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14284172#comment-14284172
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Hudson commented on PHOENIX-1594:
---------------------------------
SUCCESS: Integrated in Phoenix-master #559 (See
[https://builds.apache.org/job/Phoenix-master/559/])
PHOENIX-1594 Using KeyOnlyFilter for simple query of select count(1) from
<table> (jtaylor: rev 405cb0f763fe2e01418d3f84cb22f0331337e45b)
*
phoenix-core/src/it/java/org/apache/phoenix/end2end/SubqueryUsingSortMergeJoinIT.java
> Using KeyOnlyFilter for simple query of select count(1) from <table>
> --------------------------------------------------------------------
>
> Key: PHOENIX-1594
> URL: https://issues.apache.org/jira/browse/PHOENIX-1594
> Project: Phoenix
> Issue Type: Improvement
> Reporter: Jeffrey Zhong
> Attachments: PHOENIX-1594.patch
>
>
> I found that underlying scan for query "select count(1) or count(*) from
> <table>" still project all columns.
> It should be fast if we use KeyOnlyFilter for this simple query.
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