Re: XID wraparound in 8.4

Alvaro Herrera wrote:
> Devrim GÜNDÜZ escribió:
>
>> FWIW, PostgreSQL 8.3+ will start autovacuum (even if it is turned off)
>> if a database is approaching XID wraparound, and get rid of the
>> problem-- so you don't actually need to check it.
>
> 8.1 does it too.  The main difference is that 8.1 will run a
> database-wide vacuum, whereas in 8.2 and up it only vacuum tables that
> have not been vacuumed recently.
>

Alvaro, we had an 8.1 server that did not start autovacuum when XID
wraparound was approaching.  Rather, it just stopped performing
transactions, and returned the usual XID wraparound warning.
- Rob