nchammas commented on issue #27406: [SPARK-30681][PYSPARK][SQL] Add higher order functions API to PySpark URL: https://github.com/apache/spark/pull/27406#issuecomment-580400865 > ```python > df.selectExpr("transform(values, x -> x + 1)") > ``` So with this PR, this can be rewritten as follows, correct? ```python from pyspark.sql.functions import transform df.select(transform('values', lambda x: x + 1)) ``` > ### Does this PR introduce any user-facing change? > No. Since this PR adds new public PySpark APIs, shouldn't this be "yes"? Or is that only when modifying an existing public API?
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