Github user jiangxb1987 commented on a diff in the pull request:
https://github.com/apache/spark/pull/16497#discussion_r95295298
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/aggregate/Percentile.scala
---
@@ -91,9 +110,16 @@ case class Percentile(
case _ => DoubleType
}
- override def inputTypes: Seq[AbstractDataType] =
percentageExpression.dataType match {
- case _: ArrayType => Seq(NumericType, ArrayType(DoubleType))
- case _ => Seq(NumericType, DoubleType)
+ override def inputTypes: Seq[AbstractDataType] = {
+ val percentageExpType = percentageExpression.dataType match {
+ case _: ArrayType => ArrayType(DoubleType)
+ case _ => DoubleType
+ }
+ if (withFrqExpr) {
+ Seq(NumericType, IntegralType, percentageExpType)
--- End diff --
Please also change this according to the comments above.
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