回复: 回复: are the 2 if-statements in join_is_legal() removable?

(match_sjinfo)' test true is sufficient. Could you please show me an example query? Thank you very much! best regards, geng 发件人: Tom Lane 发送时间: 2025年5月11日 18:31 收件人: g l 抄送: pgsql-gene...@postgresql.org 主题: Re: 回复: are t

回复: are the 2 if-statements in join_is_legal() removable?

he first 2 branches, or could you please show me a example query that can cover them? Thank you very much. 发件人: Tom Lane 发送时间: 2025年5月10日 18:47 收件人: g l 抄送: pgsql-gene...@postgresql.org 主题: Re: are the 2 if-statements in join_is_legal() removable? g l

are the 2 if-statements in join_is_legal() removable?

Hi: In join_is_legal(), there are 2 decision-making statements based on match_sjinfo. Iwonder wether their conditions can ever test possitive. /* * If one input contains min_lefthand and the other contains * min_righthand, then we can perform the SJ at th