asolimando commented on PR #4287:
URL: https://github.com/apache/calcite/pull/4287#issuecomment-2788364443

   > > Throwing an exception for unsupported constructs is fine, but this may 
make some legal Calcite programs unable to generate code for Hive. But that 
should probably be a different issue: "Hive dialect does not support code 
generation for casts to nested data types"
   > 
   > OK, as discussion,I would changed it to throw an unsupported exception 
way, and would open a new jira “Hive dialect does not support code generation 
for casts to nested data types” to resolve in furture. cc @mihaibudiu @NobiGo
   
   I understand that the limitation in on the HiveQL side regarding casts to 
nested types, why do we need to open a Jira ticket in Calcite?


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