[jira] [Resolved] (PHOENIX-5123) Avoid using MappedByteBuffers for server side GROUP BY

["Lars Hofhansl (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PHOENIX-5123?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lars Hofhansl resolved PHOENIX-5123.
------------------------------------
       Resolution: Fixed
    Fix Version/s: 4.14.2
                   5.1.0
                   4.15.0

Committed to master, 4.x-HBase-\{1.4|1.3|1.2}
Thanks for the review.

> Avoid using MappedByteBuffers for server side GROUP BY
> ------------------------------------------------------
>
>                 Key: PHOENIX-5123
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-5123
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Lars Hofhansl
>            Priority: Major
>             Fix For: 4.15.0, 5.1.0, 4.14.2
>
>         Attachments: 5123-4.x-W.I.P.txt, 5123-4.x-v1.txt
>
>
> Like PHOENIX-5120 but for GROUP BY.
> Solution is a bit more tricky, since outline for sorting the access here is truly random.
> [~apurtell] suggests to perhaps just use a RandomAccessFile for this.
> (I'm not sure that uses under the hood, though)



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