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https://issues.apache.org/jira/browse/PHOENIX-1837?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Maryann Xue resolved PHOENIX-1837.
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Resolution: Fixed
> Detect ordered/unordered group-by
> ---------------------------------
>
> Key: PHOENIX-1837
> URL: https://issues.apache.org/jira/browse/PHOENIX-1837
> Project: Phoenix
> Issue Type: Sub-task
> Reporter: Maryann Xue
> Assignee: Maryann Xue
> Original Estimate: 120h
> Remaining Estimate: 120h
>
> With ordered group-by, we would do much less work. The existing Phoenix code
> depends on TrackOrderPreservingExpressionCompiler to calculate the flag. But
> given that we would no longer use any of the Phoenix parse tree nodes and the
> TrackOrderPreservingExpressionCompiler is a parse tree node visitor, we
> should now implement the same logic with Calcite RexNode.
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