On Sat, Feb 15, 2014 at 3:03 AM, Clemens Eisserer <linuxhi...@gmail.com>wrote:
> Hi, > > I would like to use postgresql's unlogged tables on an embedded system > to avoid frequent writes to flash memory. > While documentation clearly states that unlogged tables don't have to > go through the WAL, That's not really true. There are no per-row WAL records. There is still a per-transaction WAL record, the commit record. If you only care about the timing of the WAL and not the volume, changing to unlogged will not make a difference. (These commit-only records are automatically dealt with asynchronously, even if synchronous-commit is on.) Cheers, Jeff
