stczwd edited a comment on pull request #35256: URL: https://github.com/apache/spark/pull/35256#issuecomment-1019649353
In essence, the improvement of this pr is to reduce the amount of data obtained for the last time, especially in the following scenarios. 1. the capacity is set relatively large, but with limit we only need to read a small batch. 2. the last batch need to query 2 rowgroups, but with limit we only need to read only one rowgroup. Based on the above performance improvement, personally think that it is still necessary, but it still depends on your opinions, thank you. @c21 @sunchao @cloud-fan @huaxingao -- 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]
