On Thu, Oct 22, 2009 at 3:42 PM, Scot Kreienkamp <skre...@la-z-boy.com>wrote:
> Hi everyone, > > > > I have a question about pg_dump backups. Will changes made in the database > made during a pg_dump operation be reflected in the dumped datafile? Or is > the data the exact dataset that was in the database as of the start of the > backup? > > pg_dump opens transaction, on a serializable isolation level. In short, it is the proper full isolation level (as oppose to the default one: "read committed"). It can cause locks up on database, but the idea is that the dump it self is a snapshot, and is fully atomic. -- GJ
