Froggy / Froggy Corp. wrote: > Hello (again), > > I read some documentation about tuning postgresql.conf but i didn't > find information clearly about how to use GeQo. It seems to help planner > but using a lot of CPU, and is usefull only for big join. > Per default, geqo = true, but in which case, geqo is usefull and in > which case, i will lost a lot of CPU ? > If someone have some documentation or help about that. Have you read the GEQO section in the docs? -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073 ---------------------------(end of broadcast)--------------------------- TIP 6: Have you searched our list archives? http://archives.postgresql.org