wjones127 commented on issue #11513:
URL: https://github.com/apache/datafusion/issues/11513#issuecomment-2245817331

   > While I agree that having fixed length constraint for a list of logical 
types makes sense I am not convinced about FixedSizeBinaries. What would be the 
use case? Do you have some example in mind?
   
   Example uses of fixed size binary are representing arrays of data types not 
supported in Arrow, such as f16 or i128 (UUID). A value with a different number 
of bytes would be considered invalid.


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