Maciej Szymkiewicz created SPARK-30681:
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Summary: Add higher order functions API to PySpark
Key: SPARK-30681
URL: https://issues.apache.org/jira/browse/SPARK-30681
Project: Spark
Issue Type: Improvement
Components: PySpark, SQL
Affects Versions: 3.0.0
Reporter: Maciej Szymkiewicz
As of 3.0.0 higher order functions are available in SQL and Scala, but not in
PySpark, forcing Python users to invoke these through {{expr}}, {{selectExpr}}
or {{sql}}.
This is error prone and not well documented. Spark should provide
{{pyspark.sql}} wrappers that accept plain Python functions (of course within
limits of {{(*Column) -> Column}}) as arguments.
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