stefankandic commented on code in PR #48585:
URL: https://github.com/apache/spark/pull/48585#discussion_r1810671076
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/CollationTypeCasts.scala:
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@@ -162,7 +162,7 @@ object CollationTypeCasts extends TypeCoercionRule {
*/
def getOutputCollation(expr: Seq[Expression]): StringType = {
val explicitTypes = expr.filter {
- case _: Collate => true
+ case _: Collate | Alias(_: Collate, _) => true
Review Comment:
Someone else will probably want to see if an expression has explicit
collation as well; can you maybe add this as a separate function?
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