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https://issues.apache.org/jira/browse/PHOENIX-5577?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lars Hofhansl updated PHOENIX-5577:
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Labels: performance (was: )
> Uncovered columns are retrieved one-by-one in local index scans.
> ----------------------------------------------------------------
>
> Key: PHOENIX-5577
> URL: https://issues.apache.org/jira/browse/PHOENIX-5577
> Project: Phoenix
> Issue Type: Improvement
> Reporter: Lars Hofhansl
> Priority: Major
> Labels: performance
>
> See RegionScannerFactory.getWrappedScanner(...) -> new
> RegionScanner(...).nextRaw(...) -> IndexUtil.wrapResultUsingOffset(...)
> For a batched get this issues a Get back to the same region. While the Get is
> local, it still needs to setup a scanner and seek to the right key each time.
> This is pretty inefficient. Local indexes could be much, much faster at read
> time for larger scans.
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