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https://issues.apache.org/jira/browse/PHOENIX-1015?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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rajeshbabu updated PHOENIX-1015:
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Attachment: PHOENIX-1015_v6.patch
Hi [~jesse_yates], here is the patch addressing James comments above. Added
join back code in all the observers where ever needed. Corrected some bugs and
done test case changes to make use of local indexes as well(tomorrow will add
some more). Join back from data table is not yet done in join queries but can
use local indexes(Will do it in another JIRA). Can you please review the patch?
Thanks.
> 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, PHOENIX-1015_v6.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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