zanmato1984 commented on issue #49310:
URL: https://github.com/apache/arrow/issues/49310#issuecomment-3938514894

   Hi @Anakin100100 , thanks for taking this!
   
   > Can you confirm that it'd be ok to upcast the result to a large_string if 
it's not possible to fit the result in a string? I read in the docs for 23.0 
that large_string may not be supported everywhere in arrow. 
   
   I don't think this is feasible in arrow compute C++. The result type of the 
function call has to be determined lduring the kernel dispatching, ahead of the 
actual computation takes place (ie, the time when we know the result can't fit 
in the string type). 


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