mbutrovich commented on issue #16800:
URL: https://github.com/apache/datafusion/issues/16800#issuecomment-3155599235

   Just going to quote myself from 
https://github.com/apache/datafusion-comet/issues/2058 to see if I'm 
misunderstanding the current behavior as we try to migrate Comet to 
`PhysicalExprAdapter`:
   > I've run into some issues with this. In particular, I don't see a way to 
handle default values that don't have a filter on them:
   > 
   > 
https://github.com/apache/datafusion/blob/40015a8345c6c20f439cb3829897d20ebce70cc9/datafusion/datasource-parquet/src/opener.rs#L256
   > 
   > Even the example says that default values without a filter on them should 
rely on the `SchemaAdapter` but we're seeing a ton of WARN messages that the 
API is going away.
   > 
   > 
https://github.com/apache/datafusion/blob/6d0073465a59d743e42e6fdba690e40ced8a792a/datafusion-examples/examples/default_column_values.rs#L67
   
   


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