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Posted to dev@phoenix.apache.org by "Lars Hofhansl (JIRA)" <ji...@apache.org> on 2015/09/06 08:16:46 UTC

[jira] [Commented] (PHOENIX-1700) Remove ColumnProjectionFilter

    [ https://issues.apache.org/jira/browse/PHOENIX-1700?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14732222#comment-14732222 ] 

Lars Hofhansl commented on PHOENIX-1700:
----------------------------------------

Did some random tests with random queries and the /*+ SEEK_TO_COLUMN */ hint, which turns this filter off. In no cases have I seen a slow down.


> Remove ColumnProjectionFilter
> -----------------------------
>
>                 Key: PHOENIX-1700
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-1700
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Lars Hofhansl
>
> Now that HBASE-13109 is committed, we no longer need this optimization. HBase will itself do the right thing and cover a much wider range cases.
> HBASE-13109 will be in 0.98.12, so we don't want to remove this immediately, but maybe with the first version of Phoenix supporting HBase 1.0.x.
> Just filing as a reminder for now.



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