"Merlin Moncure" <merlin.moncure@rcsonline.com> writes:
> If you use tablespaces to put a high-update, non-critical table on a
> ramdisk, will updates to that table will still cause the WAL files to
> sync?
Sure. Postgres has no way of knowing that there's anything special
about such a tablespace.
> I'm looking for a way to turn off syncing completely for a table.
There isn't one, and I'm not eager to invent one.
regards, tom lane