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Posted to issues@drill.apache.org by "Hanifi Gunes (JIRA)" <ji...@apache.org> on 2014/11/11 00:15:34 UTC

[jira] [Created] (DRILL-1680) Use a different expession for ArraySegment and NamedSegment accessors

Hanifi Gunes created DRILL-1680:
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             Summary: Use a different expession for ArraySegment and NamedSegment accessors
                 Key: DRILL-1680
                 URL: https://issues.apache.org/jira/browse/DRILL-1680
             Project: Apache Drill
          Issue Type: Bug
          Components: Query Planning & Optimization
            Reporter: Hanifi Gunes


Drill planner treats ArraySegment accessors the same way with NamedSegment accessors. This ambiguity causes planner to loop indefinitely when projection pushdown is enabled (see DRILL-1455). We need to distinctly name two operators that have been used to access array segments and named segments. Array segments should still use ITEM. However named segments should be accessed via some other name just like GETCOLUMN/GETFIELD.



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