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Posted to dev@phoenix.apache.org by "Maryann Xue (JIRA)" <ji...@apache.org> on 2015/11/06 03:00:29 UTC

[jira] [Updated] (PHOENIX-1837) Detect ordered/unordered group-by

     [ https://issues.apache.org/jira/browse/PHOENIX-1837?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Maryann Xue updated PHOENIX-1837:
---------------------------------
    Labels: calcite  (was: )

> 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
>              Labels: calcite
>   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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