ulysses you created SPARK-34150:
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Summary: Strip Null literal.sql in resolve alias
Key: SPARK-34150
URL: https://issues.apache.org/jira/browse/SPARK-34150
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 3.2.0
Reporter: ulysses you
We will convert `Literal(null)` to target data type during analysis. Then the
generated alias name will include something like `CAST(NULL AS INT)` instead of
`NULL`.
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