Craig Ringer <craig.rin...@2ndquadrant.com> writes: > - as you noted, it is hard to decide when it's worth inlining vs > materializing for CTE terms referenced more than once.
[ raised eyebrow... ] Please explain why the answer isn't trivially "never". There's already a pretty large hill to climb here in the way of breaking peoples' expectations about CTEs being optimization fences. Breaking the documented semantics about CTEs being single-evaluation seems to me to be an absolute non-starter. regards, tom lane -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers