XiDuo You created SPARK-39267:
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Summary: Clean up dsl unnecessary symbol
Key: SPARK-39267
URL: https://issues.apache.org/jira/browse/SPARK-39267
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 3.4.0
Reporter: XiDuo You
dsl is a test helper file which provide easy used functions. But some of these
are unnecessary, for example:
{code:java}
def subquery(alias: Symbol): LogicalPlan {code}
For a subquery, we only need the name, so a string type parameter is enough.
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