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From "Lars Hofhansl (Jira)" <j...@apache.org>
Subject [jira] [Resolved] (PHOENIX-6115) Avoid scanning prior row state for uncovered local indexes on immutable tables.
Date Mon, 31 Aug 2020 23:50:00 GMT

     [ https://issues.apache.org/jira/browse/PHOENIX-6115?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lars Hofhansl resolved PHOENIX-6115.
------------------------------------
    Resolution: Won't Fix

I'll drop this topic until we can think through a refactoring of the local indexing code.

> Avoid scanning prior row state for uncovered local indexes on immutable tables.
> -------------------------------------------------------------------------------
>
>                 Key: PHOENIX-6115
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-6115
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Lars Hofhansl
>            Priority: Major
>         Attachments: 6115-master.txt
>
>
> Looking at the code I realized that we retrieve the prior row state even when is not
necessary.
> Specifically it is not necessary when (a) the table is immutable and (b) the indexes
does not include any covered columns.
> The unnecessary work is in part a consequence of the changes for global consistent indexing.



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