LiaCastaneda commented on PR #21240:
URL: https://github.com/apache/datafusion/pull/21240#issuecomment-4535149012

   > Putting this planning behavior behind a session property will be 
non-trivial, because various parts of the planner code have been simplified to 
assume that uncorrelated scalar subqueries will not be rewritten into joins 
(partly as part of this PR; also in 
https://github.com/apache/datafusion/pull/22316, maybe elsewhere).
   
   I see 🤔 maybe I can give it a try and see how ugly it gets
   
   >  How difficult will it be for datafusion-distributed to adapt to this 
change, do you think?
   
   I think it would require a significant amount of work and thought -- we 
already have similar cross-worker shared-state work pending in order to make 
dynamic filtering work in the project, so maybe we will pick it up soon. Was 
just wondering if it would be simple enough to put this behind a flag to 
unblock the upgrade on our side.
   
   Also wondering if ballista bumped into the same issue when they tested the 
new release branch? cc @milenkovicm 


-- 
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