Dongjoon Hyun created SPARK-61277:
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Summary: Avoid quadratic allocations in `ColumnPruning` when
pruning the children of a `Union`
Key: SPARK-61277
URL: https://issues.apache.org/jira/browse/SPARK-61277
Project: Spark
Issue Type: Sub-task
Components: SQL
Affects Versions: 4.4.0
Reporter: Dongjoon Hyun
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