Yao-MR commented on issue #4780: URL: https://github.com/apache/incubator-doris/issues/4780#issuecomment-716271173
> 我最近也在关注这个问题，能否在源表进行join的时候考虑命中已经存在的rollup来提高查询效率 目前来看在源表进行join的时候是可以命中rollup表的，会直接用rollup 进行join， 但是在rollup 进行join的时候按照逻辑是可以再次进行优化join的，比如是否可以对rollup的distribute by 按照join的key进行分区，此时rollup 的直接的join是可以优化为colocation join，将会进一步的优化join的成本 ---------------------------------------------------------------- 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: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
