Cheng Su created SPARK-37726:
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Summary: Add spill size metrics for sort merge join
Key: SPARK-37726
URL: https://issues.apache.org/jira/browse/SPARK-37726
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 3.3.0
Reporter: Cheng Su
Sort merge join allows buffered side to spill if the size is too large to hold
in memory. It would be good to add a "spill size" SQL metrics in sort merge
join, to track how often the spill happens, and how much of spill size would be
in case when it spills.
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