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Posted to dev@phoenix.apache.org by "Maryann Xue (JIRA)" <ji...@apache.org> on 2015/04/11 00:08:12 UTC

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

Maryann Xue created PHOENIX-1837:
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             Summary: 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


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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