L. C. Hsieh created SPARK-34956:
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Summary: Support multiple fields when nested column pruning on
Generator output
Key: SPARK-34956
URL: https://issues.apache.org/jira/browse/SPARK-34956
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 3.2.0
Reporter: L. C. Hsieh
SPARK-34638 enhances nested column pruning rule on Generator's output.
SPARK-34638 supports single field case, e.g.
{{df.select(explode($"items").as("item")).select($"item.a")}}. This ticket is
open for tracking multiple-field support.
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