morningman commented on issue #3480: URL: https://github.com/apache/incubator-doris/issues/3480#issuecomment-624625042
> > When you call join1.getJoinOp(), the joinOp of table join1 is null, but getJoinOp() will > > return INNER_JOIN. > > So this is a bug？ the joinOp of table join1 should be `LEFT_SEMI_JOIN`, not null? we should also fix this? Seems not a bug. the `jionOp` is attach to the right. So `join1`'s `joinOp` is null, and `join2`'s `joinOp` is `LEFT SEMI JOIN`. And as the comment of `joinOp` said, `null` means if default, which is `INNER JOIN`. This can actually be understood as the "single-table processing of `join1`". And the processing logic of single table about predicate pushdown is the same as "inner join"? ---------------------------------------------------------------- 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
