alamb commented on issue #10048: URL: https://github.com/apache/datafusion/issues/10048#issuecomment-2226002249
Hi @aalexandrov -- no one is actively working on this as far as I ca tell. > IIUC the right way to approach the problem here is to implement better (ideally full) query decorrelation as described [in this paper](https://btw-2015.informatik.uni-hamburg.de/res/proceedings/Hauptband/Wiss/Neumann-Unnesting_Arbitrary_Querie.pdf). I am not familar enough with lateral joins to be sure without some more research However, to the best of my knowledge current industrial best practice for subquery execution is to decorrelate them to joins (and not actually try and rerun them). Thus if supporting lateral joins in datafusion means supporting more decorrelation rules I think that would be a good design -- 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: github-unsubscr...@datafusion.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org For additional commands, e-mail: github-h...@datafusion.apache.org
