nikolamand-db commented on code in PR #45693:
URL: https://github.com/apache/spark/pull/45693#discussion_r1551648804
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collectionOperations.scala:
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@@ -2002,9 +2003,9 @@ case class ArrayJoin(
this(array, delimiter, Some(nullReplacement))
override def inputTypes: Seq[AbstractDataType] = if
(nullReplacement.isDefined) {
- Seq(ArrayType(StringType), StringType, StringType)
+ Seq(ArrayType, StringTypeAnyCollation, StringTypeAnyCollation)
Review Comment:
@cloud-fan There's a special case in `FunctionArgumentConversion` which
implicitly casts array parameter to array of strings
https://github.com/apache/spark/pull/21620.
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