Dandandan commented on issue #20325: URL: https://github.com/apache/datafusion/issues/20325#issuecomment-3893783667
Filter execution is also a bit different. `FilterExec` `and`-combine multiple predicates and then filters all columns, whereas this change always filters a single array (so it can not cache the row indices / ranges). Here https://github.com/apache/arrow-rs/pull/9284#issuecomment-3893494754 i have some good performance results by implementing/using `fold` for the iterators to speed things up for selective filters on single arrays. Not sure if this is really the slowdown, but it will help regardless. -- 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]
