uros-db commented on code in PR #46165:
URL: https://github.com/apache/spark/pull/46165#discussion_r1575701941


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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/CollationTypeCasts.scala:
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@@ -54,7 +54,7 @@ object CollationTypeCasts extends TypeCoercionRule {
 
     case otherExpr @ (
       _: In | _: InSubquery | _: CreateArray | _: ArrayJoin | _: Concat | _: 
Greatest | _: Least |
-      _: Coalesce | _: BinaryExpression | _: ConcatWs) =>
+      _: Coalesce | _: BinaryExpression | _: ConcatWs | _: Mask) =>

Review Comment:
   For `StringToMap`, the second and third parameters are treated as regex:
   
   > Both `pairDelim` and `keyValueDelim` are treated as regular expressions."
   
   so no casting there, and their collation shouldn't be taken into 
consideration



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