amit hadke created DRILL-4078:
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Summary: Support schema changes in Hash Aggregate (Group by)
Key: DRILL-4078
URL: https://issues.apache.org/jira/browse/DRILL-4078
Project: Apache Drill
Issue Type: Improvement
Reporter: amit hadke
Assignee: amit hadke
Support changes in schema during hash aggregate execution. Just like hash join
we can rely on current implicit casting to support equality between different
types(including union types).
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