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https://issues.apache.org/jira/browse/PHOENIX-3858?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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James Taylor updated PHOENIX-3858:
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Attachment: PHOENIX-3858.patch
Here's a WIP patch that prevents the scan to find old values for immutable
rows. I'll test it locally. Looks like something else may be going on, though,
[~rajeshbabu], if mutable indexes are still 2x slower for local indexes with
your patch applied.
> Index maintenance not required for local indexes of table with immutable rows
> -----------------------------------------------------------------------------
>
> Key: PHOENIX-3858
> URL: https://issues.apache.org/jira/browse/PHOENIX-3858
> Project: Phoenix
> Issue Type: Bug
> Reporter: Rajeshbabu Chintaguntla
> Assignee: Rajeshbabu Chintaguntla
> Fix For: 4.11.0
>
> Attachments: PHOENIX-3858.patch
>
>
> While preparing index mutations we are are scanning data region for index
> maintenance which is not required in case of immutable rows. This
> optimisation is very helpful for local indexes which got removed in the
> recent changes.
> FYI [~jamestaylor] [~mujtabachohan] Found this while checking PHOENIX-3853.
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