Josh Berkus <josh@agliodbs.com> writes: > So, will per-table XID tracking allow us to avoid *ever* vacuuming some > tables?
If your definition of "ever" is less than a billion transactions, sure. (As Simon points out, with time-partitioned data sets that could often be arranged, so it's not a completely silly response.) > If not, what could? The only possibility for more-than-a-billion is widening XIDs to 64 bits, which would come with its own set of performance penalties. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 2: Don't 'kill -9' the postmaster