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From "James Taylor (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-3005) Use DistinctPrefixFilter for DISTINCT index scans
Date Sat, 18 Jun 2016 23:45:05 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-3005?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15338278#comment-15338278
] 

James Taylor commented on PHOENIX-3005:
---------------------------------------

If an index is being used where C1 is indexed, it wouldn't be a KeyValueColumnExpression,
as C1 would be part of the row key.

> Use DistinctPrefixFilter for DISTINCT index scans
> -------------------------------------------------
>
>                 Key: PHOENIX-3005
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-3005
>             Project: Phoenix
>          Issue Type: Sub-task
>            Reporter: Lars Hofhansl
>             Fix For: 4.8.0
>
>
> Currently the optimization in PHOENIX-258 is not used for DISTINCT index scans. We should
add that as well.



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