askalt opened a new issue, #7443:
URL: https://github.com/apache/arrow-rs/issues/7443

   It was noticed that there is a difference between the schemas that go arrow 
flight adbc driver expects (in the response on get-db-schemas-request):
   
   
https://github.com/apache/arrow-go/blob/a62d36fba3b2df5be1d61a4a34fbd9bf0756676e/arrow/flight/flightsql/schema_ref/reference_schemas.go#L26-L29
   
   Here `catalog_name` is nullable, but in rust we have non-nullable field:
   
   
https://github.com/apache/arrow-rs/blob/5f0aed6b71cb9e6f38a3735b76ee89f4a0aea393/arrow-flight/src/sql/metadata/db_schemas.rs#L177-L183
   
   Obviously, one can return any schema from the server, but want to figure 
out, who is actually right and where a source of truth. 


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