2010YOUY01 commented on issue #22946: URL: https://github.com/apache/datafusion/issues/22946#issuecomment-4703490696
> A more advanced alternative would be implementing streaming evaluation for more window frame/function combinations. I think this is doable and would be a more efficient, for bounded window frames. I have a PoC for that, and I can split that into smaller PRs also with a better API design, what's in the PoC was a bit rough. I'm wondering are you interested in reviewing that? - https://github.com/apache/datafusion/pull/22356 > but it is a larger semantic change and does not cover all window functions. I'm not sure if there is any efficient spilling algorithm for not bounded windows like `ROWS BETWEEN expr1 PRECEDING AND expr2 FOLLOWING`? Otherwise in such cases we have to give up I suppose. -- 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]
