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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