[GitHub] [arrow-datafusion] liukun4515 commented on issue #2799: coercion rule about `eq` and InList between string type and numeric type

[GitBox <gi...@apache.org>]

liukun4515 commented on issue #2799:
URL: https://github.com/apache/arrow-datafusion/issues/2799#issuecomment-1173812564

   > Here is what postgres does (appears to me to cast based on the type of the first element in the IN list):
   > 
   > ```
   > alamb=# select 5 in (1, 2, 'fff');
   > ERROR:  invalid input syntax for type integer: "fff"
   > LINE 1: select 5 in (1, 2, 'fff');
   >                            ^
   > alamb=# select 'foo' in (1, 2, 'fff');
   > ERROR:  invalid input syntax for type integer: "fff"
   > LINE 1: select 'foo' in (1, 2, 'fff');
   >                                ^
   > alamb=# select 'foo' in ('1', '2', 'fff');
   >  ?column? 
   > ----------
   >  f
   > (1 row)
   > ```
   
   Do you try  this?
   ```
   select 1 in (12,1,3,'123');
   ```


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