On Friday 17 October 2008 Scott Ribe's cat, walking on the keyboard, wrote: > Older versions of PG were inefficient with larger numbers of elements in an > IN query, and in fact would error out with something about lack of stack > space if you used very many (a few hundred IIRC). > > 8.x something was supposed to have improved that. Using 8.3 recently, after > an "oopsie" with some development data, I inadvertently confirmed that it > works and performance is not too bad with >34,000 items in an IN clause ;-) Interesting, since my queries sometimes expand to a few thousands of ORs (or INs), and I had in fact stack problems and I had to expand it to around 20 MB..... Luca -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
