peterxcli commented on PR #20358:
URL: https://github.com/apache/datafusion/pull/20358#issuecomment-3908083939

   > Thanks @peterxcli why we cannot just use internal DF `map` function? Spark 
crate functions are overloads for already existing DF functions to follow Spark 
specifics, do you see something where built in `map` doesn't follow the one 
from Spark?
   
   The built-in DataFusion map function has a different argument order and type 
signature compared to Spark's map. I'm not sure if we can reorder the arguments 
on the Comet side—is there another function doing something similar? Even if we 
could, we would still need to write Scala code to handle type casting and Arrow 
formatting, which seems like a significant effort. WDYT?
   
   ref: 
   
https://github.com/apache/datafusion/blob/ffcc7e3af8cfccb0c0705de2112d8277b28114fd/datafusion/functions-nested/src/map.rs#L195-L238


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: [email protected]

For queries about this service, please contact Infrastructure at:
[email protected]


---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]

Reply via email to