Github user rxin commented on a diff in the pull request: https://github.com/apache/spark/pull/14136#discussion_r84591480 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/functions.scala --- @@ -613,6 +613,46 @@ object functions { def min(columnName: String): Column = min(Column(columnName)) /** + * Aggregate function: returns the exact percentile(s) of the expression in a group at pc with --- End diff -- let's not add the scala api for this for now. i'm not sure if we want to encourage users to use it -- it is super expensive.
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