houqp commented on issue #1185:
URL: 
https://github.com/apache/arrow-datafusion/issues/1185#issuecomment-997537420


   @Igosuki I think the idea is to extend these public apis to allow users 
explicitly specify table partition columns (i.e. the `table_partition_cols` 
field) using either dataframe or sql interface. The auto partitioning discovery 
feature can be enabled when no explicit partitioning is specified by the user.
   
   I think there is value in making partition column statically typed as well 
instead of only treating them as strings. But this is out of scope for this 
issue.


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