Wan Kun created SPARK-45607:
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Summary: Collapse repartition with project
Key: SPARK-45607
URL: https://issues.apache.org/jira/browse/SPARK-45607
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 4.0.0
Reporter: Wan Kun
We can collapse two repartition operators with a project between them.
For example:
df.repartition($"a").select($"a", $"b", $"a" + $"b").repartition($"b")
is same to
df.select($"a", $"b", $"a" + $"b").repartition($"b")
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