jayzhan211 commented on issue #6692: URL: https://github.com/apache/arrow-rs/issues/6692#issuecomment-2463860400
https://github.com/apache/arrow-rs/blob/e9bf8aa6bf67ec192fce1a6f3e7ab604c9689fef/arrow-select/src/filter.rs#L740 This line of code extends buffer (byte copied) regardless of the filtered result, I think it is the reason why we need gc. If we do `append_value` here, we have additional hash lookup and insert, but less buffer copied in low selectivity and no gc required later on. -- 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]
