xudong963 commented on issue #2181: URL: https://github.com/apache/arrow-datafusion/issues/2181#issuecomment-1096620787
Subquery processing is a complex matter, and I highly recommend that we figure out how to do it at the beginning (how to handle associative and non-associative), otherwise there will be a lot of bugs, and hard to cover areas later. I recommend reading this article by materialize: https://materialize.com/decorrelation-subquery-optimization/, which mentions three articles, especially the tum one, which are very informative. My previous framework was implemented according to this, and I will close it first. I'll continue when I'm free later, if others haven't done complete support :). If anyone else has a better idea, feel free to ping me for a review! -- 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]
