[jira] [Commented] (PHOENIX-1038) Dynamically add INDEX_TYPE column to SYSTEM.CATALOG if not already there

["James Taylor (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PHOENIX-1038?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14025474#comment-14025474 ] 

James Taylor commented on PHOENIX-1038:
---------------------------------------

[~rajesh23] - to test this patch, start Phoenix against 4.0. Then upgrade the cluster to 4.1 and bring it up again. It should dynamically add the INDEX_TYPE column on the first connection to the cluster.

> Dynamically add INDEX_TYPE column to SYSTEM.CATALOG if not already there
> ------------------------------------------------------------------------
>
>                 Key: PHOENIX-1038
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-1038
>             Project: Phoenix
>          Issue Type: Sub-task
>            Reporter: rajeshbabu
>            Assignee: rajeshbabu
>         Attachments: PHOENIX-933.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. 



--
This message was sent by Atlassian JIRA
(v6.2#6252)