uros-db commented on PR #46597:
URL: https://github.com/apache/spark/pull/46597#issuecomment-2119216632

   How about we go with this:
   
   - try to get the modified `Mode.update` approach working, and see how it 
does on the benchmark
   - limit the support to collated StringType only, no complex types for now - 
that can be a separate change
   
   hint: to properly limit the support for collated types, you can use 
`override def checkInputDataTypes` to throw something like 
`UNSUPPORTED_DATATYPE` if child.dataType is a complex type with **collated** 
strings


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