wuyi created SPARK-30903:
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Summary: Fail fast on duplicate columns when analyze columns
Key: SPARK-30903
URL: https://issues.apache.org/jira/browse/SPARK-30903
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 3.0.0
Reporter: wuyi
We should fail fast on duplicate columns when analyze columns to avoid
duplicate computation on the column.
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