Karen Ploski <ploskikl@xxxxxxxxx> writes: > I'm trying to understand how large objects relate to > the write-ahead log. Large objects are just some data in a table. The API for them is a bit odd, but the reliability issues are not any different from any other transaction. > (1)When a large object is updated, how much of the > large object is placed in the WAL buffers in shared > memory by LogInsert? Every row you updated (which is any 2K segment of the large object IIRC). regards, tom lane
