cloud-fan commented on code in PR #46649:
URL: https://github.com/apache/spark/pull/46649#discussion_r1606154991


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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/TypeCoercion.scala:
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@@ -1048,6 +1048,9 @@ object TypeCoercion extends TypeCoercionBase {
           }
         }
 
+      // Allows the cast between different collated strings to match with ANSI 
behavior.

Review Comment:
   This is a behavior change.
   
   @uros-db I looked at the code base, we have implicit cast rules for 
`AbstractArrayType`, but not `AbstractMapType`, seems like a miss?



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