Re: [I] Regression in `last_value` functionality [datafusion]

[via GitHub]

andygrove commented on issue #15676:
URL: https://github.com/apache/datafusion/issues/15676#issuecomment-2794909458

   I confirmed that the behavior in DataFusion also changed when #15542 was 
merged.
   
   ## Before
   
   ```
   query III
   SELECT y, FIRST_VALUE(x), LAST_VALUE(x)
   FROM FOO
   GROUP BY y
   ORDER BY y;
   ----
   2 1 1
   3 2 1
   ```
   
   ## After 
   
   ```
   query III
   SELECT y, FIRST_VALUE(x), LAST_VALUE(x)
   FROM FOO
   GROUP BY y
   ORDER BY y;
   ----
   2 1 1
   3 2 2
   ```


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