Dandandan commented on issue #7014:
URL: https://github.com/apache/arrow-rs/issues/7014#issuecomment-2623843862

   There are places that still do `std::str::from_utf8` like 
`validate_string_view`.
   
   
https://github.com/apache/arrow-rs/blob/3bf29a2c7474e59722d885cd11fafd0dca13a28e/arrow-data/src/byte_view.rs#L145
   
   This still has `std::str::from_utf8` ? 
   I got it from @alamb profile in 
https://github.com/apache/datafusion/issues/13983#issuecomment-2613378310 where 
it has ~5% of samples.
   
   I think there is also some other places which can benefit by a bit from this 
(e.g. reading csv/json, casting...).
   
https://github.com/search?q=repo%3Aapache%2Farrow-rs%20std%3A%3Astr%3A%3Afrom_utf8&type=code
    
   > I am embarassed to admit I missed the StringView one -- I will make a PR 
to switch
   
   


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