Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/19321#discussion_r140627874
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/aggregate/ApproximatePercentile.scala
---
@@ -85,7 +85,8 @@ case class ApproximatePercentile(
private lazy val accuracy: Int =
accuracyExpression.eval().asInstanceOf[Int]
override def inputTypes: Seq[AbstractDataType] = {
- Seq(DoubleType, TypeCollection(DoubleType, ArrayType(DoubleType)),
IntegerType)
+ Seq(TypeCollection(NumericType, DateType, TimestampType),
+ TypeCollection(DoubleType, ArrayType(DoubleType)), IntegerType)
--- End diff --
This will cause the result difference. We need to document it.
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