[GENERAL] out of memory

[Hugues-Vincent Grislin]

Hello, I have a problem when i try to execute my request : ERROR:  out of memory DETAIL:  Failed on request of size 336. (I had execute the " VACCUM" before) It's a SELECT which contains several jointures (simple ones, 1-1). With 5 jointures there is no problem but with 6, i have this error. config : Postgres 7.4.7 Linux Redhat 7.0 RAM : 256 Mo swap : 256 Mo I found some threads about that but no answer. Thanks, Hugues-Vincent Grislin.