Tom Lane wrote:

Alvaro Herrera <[EMAIL PROTECTED]> writes:
On Tue, Jul 19, 2005 at 10:44:35PM -0400, Tom Lane wrote:
If it's a matter of whether VACUUM removes rows or not, that's expected:
open-transaction bookkeeping is done across the whole cluster.  (This is
not something simple to change, since we may have to consider
transaction IDs in shared catalogs.)

I wonder if this restriction could be lifted if we tracked last-vacuum-
Xid per relation?

No, that's unrelated.  What is of concern is the open-transaction
horizon.

From a Slony-I users standpoint - the idle transactions cause pg_listener bloat, which can impact replication performance on busy sites.

--
Brad Nicholson  416-673-4106
Database Administrator, Afilias Canada Corp.



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