[GitHub] [arrow-datafusion] comphead commented on issue #5650: `timestamp` - interval results in `The type of Timestamp(Nanosecond, Some("+00:00")) Minus Utf8 of binary physical should be same`

[via GitHub]

comphead commented on issue #5650:
URL: 
https://github.com/apache/arrow-datafusion/issues/5650#issuecomment-1481604980

   @alamb are you also expect the case like that to be valid?
   ```
   with t as
   (
       select '1 day' as intvl
   ) select now() - t.invl from t
   ```
   
   Or it has to be literal to make such kind of cast? 


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