HyukjinKwon commented on a change in pull request #35699:
URL: https://github.com/apache/spark/pull/35699#discussion_r817277817
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/stat/StatFunctions.scala
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@@ -246,14 +246,19 @@ object StatFunctions extends Logging {
}
require(percentiles.forall(p => p >= 0 && p <= 1), "Percentiles must be in
the range [0, 1]")
+ def castAsDoubleIfNecessary(e: Expression): Expression = if (e.dataType ==
StringType) {
+ TryCast(e, DoubleType)
Review comment:
Yeah.
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