Andres Freund <and...@anarazel.de> writes: > On 2016-09-02 10:20:42 -0400, Tom Lane wrote: >> ... ISTM all we >> need is that the SRF be on the inside of the join, which is automatic >> if it's LATERAL.
> Right. But there's nothing to force a lateral reference to be there > intrinsically. I've added a "fake" lateral reference to the ROWS FROM > RTE to the subquery, when there's none otherwise, but that's not > entirely pretty. Hm, do you get cases like this right: select generate_series(1, t1.a) from t1, t2; That would result in a lateral ref from the SRF RTE to t1, but you really need to treat it as laterally dependent on the join of t1/t2 in order to preserve the old semantics. That is, you need to be laterally dependent on the whole FROM clause regardless of which variable references appear. regards, tom lane -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers