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https://issues.apache.org/jira/browse/PHOENIX-2262?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Maryann Xue resolved PHOENIX-2262.
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Resolution: Fixed
> Improve collation for salted table
> ----------------------------------
>
> Key: PHOENIX-2262
> URL: https://issues.apache.org/jira/browse/PHOENIX-2262
> Project: Phoenix
> Issue Type: Improvement
> Reporter: Maryann Xue
> Assignee: Maryann Xue
> Priority: Minor
> Labels: calcite
>
> Salting tables have a leading SALT column so it's collation is "salted
> distribution" + "pk ordering". We have to set the "forceRowKeyOrder" flag to
> true to guarantee PK order in a scan but meanwhile forcing row key order
> could be a big performance penalty.
> The idea is to use "forceRowKeyOrder" whenever the PK order is useful (e.g.
> to avoid sorting, to use stream aggregate, etc.), but disable this flag when
> the order is not needed.
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