Jesus Camacho Rodriguez created HIVE-22200:
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Summary: Hash collision may cause column resolution to fail
Key: HIVE-22200
URL: https://issues.apache.org/jira/browse/HIVE-22200
Project: Hive
Issue Type: Bug
Reporter: Jesus Camacho Rodriguez
Assignee: Jesus Camacho Rodriguez
{{ExprNodeDescUtils.getExprNodeColumnDesc}} extracts the {{ExprNodeColumnDesc}}
(column descriptors) from an expression. In fact, it creates a map from hash to
the object itself. It same hash value is generated for two different objects,
this will result in a clash in the map and some expressions not being part of
its values.
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