mm0708 opened a new issue #8099:
URL: https://github.com/apache/arrow/issues/8099


   
   I have a series of files saved as .rds that I am converting to feather using 
arrow for R. I am loading these rds files, using write_feather, then loading 
them using open_dataset so that I can patrician them in a logical way.
   
   Most of the times things have gone rather smoothly but I noted in one batch 
that I get an error that says: `Type error: fields had matching names but 
differing types.`
   
   All of the files have the same source and all have the same data types when 
read into R using readRDS. So I tried to use the schema option in the 
open_dataset step but I am still getting the same error even though I have 
explicitly set the schema for all columns. 
   
   Is there a way to specify the schema during the write_feather step? I don't 
see it in the documentation or if there was some other workaround. This seems 
to be the only time where the types get mismatched for whatever reason. 


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