Jesús Camacho Rodríguez created HIVE-8926:
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Summary: Projections that only swap input columns are identified
incorrectly as identity projections
Key: HIVE-8926
URL: https://issues.apache.org/jira/browse/HIVE-8926
Project: Hive
Issue Type: Bug
Affects Versions: 0.15.0
Reporter: Jesús Camacho Rodríguez
Assignee: Jesús Camacho Rodríguez
Fix For: 0.15.0
Projection operators that only swap the input columns in the tuples are
identified as identity projections, and thus incorrectly deleted from the plan
by the _identity project removal_ optimization.
This bug was introduced in HIVE-8435.
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