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From "James Taylor (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-1015) Support joining back to data table row from local index when query condition involves leading columns in local index
Date Wed, 04 Jun 2014 00:24:01 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-1015?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14017283#comment-14017283
] 

James Taylor commented on PHOENIX-1015:
---------------------------------------

Thanks for the excellent work, [~rajesh23]. If you update your patch, I'll pull it into the
local-index branch. Then you can rebase for master and 4.0 to produce the pull request. 

> Support joining back to data table row from local index when query condition involves
leading columns in local index
> --------------------------------------------------------------------------------------------------------------------
>
>                 Key: PHOENIX-1015
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-1015
>             Project: Phoenix
>          Issue Type: Sub-task
>            Reporter: rajeshbabu
>            Assignee: rajeshbabu
>         Attachments: PHOENIX-1015.patch
>
>
> When a query involves more columns to project than columns in index and query condition
involves leading columns in local index then first we can get matching rowkeys from local
index table and then get the required columns from data table. In local index both data region
and index region co-reside in the same RS, we can call get on data region to get the missing
columns in the index, without any n/w overhead. So it's efficient. 



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