srowen commented on a change in pull request #30745:
URL: https://github.com/apache/spark/pull/30745#discussion_r579842757
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File path: python/pyspark/sql/functions.py
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@@ -222,6 +222,45 @@ def sum_distinct(col):
return _invoke_function_over_column("sum_distinct", col)
+def product(col, scale=1.0):
+ """
+ Aggregate function: returns the product of the values in a group.
+
+ .. versionadded:: 3.2.0
+
+ Parameters
+ ----------
+ col : str, :class:`Column`
+ column containing values to be multiplied together
+ scale : float
Review comment:
I don't know it adds another arg that seems pretty niche, when you can
express this the natural way with existing syntax.
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