jorisvandenbossche commented on pull request #8912:
URL: https://github.com/apache/arrow/pull/8912#issuecomment-880815839


   Yeah, sorry for the slow follow-up here. It was on my to do list to have a 
look at today.
   
   > Naming it unify_schemas or infer_schemas or similar makes sense to me. I 
see only three main cases:
   > ...
   > - Schema is inferred (nothing to validate against!)
   
   But for this last case, you might still have the options of inferring from 
the first fragment, or reading the schema of all fragments and unifying them 
(or erroring when they can't be unified).
   
   So if we have eg a `infer_schemas`, I suppose we want to keep the different 
types of arguments what I now did for `validate_schema` (True meaning infer 
schema of all fragments, and an integer meaning the number of fragments to 
check).


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