wangbo commented on issue #4928: URL: https://github.com/apache/incubator-doris/issues/4928#issuecomment-730282616
It looks more like based on ```Operation Type``` and ```Data Type``` . Where is ```Based on cost``` reflected? I wonder whether we need to collect column's statistics info,such as columns's cardinality. Eg, even ```key_varchar in ``` is more expensive than EQ, but ```key_varchar``` has higher selectivity ,so we can put ```key_varchar``` ahead ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For additional commands, e-mail: commits-h...@doris.apache.org
