shehabgamin commented on issue #14008:
URL: https://github.com/apache/datafusion/issues/14008#issuecomment-2599492511

   As promised, Sail is working on porting relevant tests into DataFusion.
   
   A good starting point is a regression our tests caught in DataFusion 43, 
which still seems to persist in DataFusion 44. A regression was introduced in 
DataFusion 43.0.0 related to casting to UTF8 in various places. Upgrading to 
DataFusion 43.0.0 required adding explicit casting in several areas as a 
workaround. This PR (https://github.com/lakehq/sail/pull/355) comments out 
those changes to expose the regression through the 12 additional failed tests 
compared to the main branch.
   
   Once I’ve pinpointed the root cause(s) of the regression, I’ll create an 
issue in DataFusion to track the work. I want to ensure the issue accurately 
reflects the problem before filing it. I’m happy to address these regressions 
and port over the tests that cover them in the same PR. Hopefully, we can get 
this resolved in time for the DataFusion 45 release!


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