Li Jin created SPARK-26328:
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Summary: Use GenerateOrdering for group key comparison in
WindowExec
Key: SPARK-26328
URL: https://issues.apache.org/jira/browse/SPARK-26328
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 2.4.0
Reporter: Li Jin
Per discussion here:
[https://github.com/apache/spark/pull/22305/commits/850541873df1101485a85632b85ba474dac67d56#r239312302]
It seems better to use GenerateOrdering for group key comparison in WindowExec.
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