Xiao Li created SPARK-13544:
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Summary: Rewrite/Propagate constraints for Aliases in Aggregate
and Windows
Key: SPARK-13544
URL: https://issues.apache.org/jira/browse/SPARK-13544
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 2.0.0
Reporter: Xiao Li
After plan analysis by Analyzer, three operators could have alias. They are
Project, Aggregate and Window. So far, only Alias defined in Project will
rewrite and propagate constraints.
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