srowen commented on a change in pull request #24779: [SPARK-27929][SQL] Make
percentile function receive frq of double
URL: https://github.com/apache/spark/pull/24779#discussion_r313550980
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/aggregate/Percentile.scala
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@@ -67,16 +67,23 @@ case class Percentile(
child: Expression,
percentageExpression: Expression,
frequencyExpression : Expression,
+ isIntFreqExpression: Expression,
Review comment:
Oh I misunderstood this a little. This is extending the implementation of
weighted percentile.
Still, I doubt you need to add a new expression here. Just expand the
allowed types to any `NumericType`, which should be backwards compatible. The
math wouldn't change, right?
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