jorgecarleitao commented on pull request #8971:
URL: https://github.com/apache/arrow/pull/8971#issuecomment-749032177


   Hi @kflansburg .
   
   Every array type in the arrow crate has an associated `DataType` that is 
part of the arrow specification. In particular, they all implement the trait 
`Array`, which has a method `data_type`, which allow interoperability with 
other implementations via the c data interface, flight protocol, parquet 
format, etc.
   
   I can't find a type "JSON" in [the arrow 
specification](https://github.com/apache/arrow/blob/master/format/Schema.fbs). 
Could you clarify how this new struct would fit?


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