Pierre-Frédéric Caillaud wrote: > Is there also a possibility to tell Postgres : "I don't care if I lose 30 > seconds of transactions on this table if the power goes out, I just want > to be sure it's still ACID et al. compliant but you can fsync less often > and thus be faster" (with a possibility of setting that on a per-table > basis) ?
I have been thinking about this. Informix calls it buffered logging and it would be a good feature. Added to TODO: * Allow buffered WAL writes and fsync Instead of guaranteeing recovery of all committed transactions, this would provide improved performance by delaying WAL writes and fsync so an abrupt operating system restart might lose a few seconds of committed transactions but still be consistent. We could perhaps remove the 'fsync' parameter (which results in an an inconsistent database) in favor of this capability. -- Bruce Momjian | http://candle.pha.pa.us [EMAIL PROTECTED] | (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 7: don't forget to increase your free space map settings
