924060929 commented on a change in pull request #7645: URL: https://github.com/apache/incubator-doris/pull/7645#discussion_r794277360
########## File path: docs/zh-CN/administrator-guide/runtime-filter.md ########## @@ -138,6 +138,9 @@ set runtime_filter_type=7; - 默认只有右表数据行数少于1024才会下推(可通过session变量中的`runtime_filter_max_in_num`调整)。 - 目前IN predicate已实现合并方法。 - 当同时指定In predicate和其他filter,并且in的过滤数值没达到runtime_filter_max_in_num时,会尝试把其他filter去除掉。原因是In predicate是精确的过滤条件,即使没有其他filter也可以高效过滤,如果同时使用则其他filter会做无用功。目前仅在Runtime filter的生产者和消费者处于同一个fragment时才会有去除非in filter的逻辑。 +- **IN or Bloom Filter**: 根据右表的值的行数来判断使用IN predicate还是Bloom Filter + - 默认在右表数据行数少于1024时会使用IN predicate(可通过session变量中的`runtime_filter_max_in_num`调整) + - 否则使用Bloom filter - ** Review comment: 后续再加最佳实践 -- 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: commits-unsubscr...@doris.apache.org 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