On Wed, 2008-10-22 at 17:18 +0300, Heikki Linnakangas wrote: > The list of xids in a snapshot is just a palloc'd array, in > backend-local memory, so we can easily make it as large as we need to.
It's malloc'd before we hold the lock. Yes, we can make it as large as we need to, but that would change the way it is allocated significantly and that will require either extended lock hold durations or multiple lock acquisitions. That doesn't sounds good. -- Simon Riggs www.2ndQuadrant.com PostgreSQL Training, Services and Support -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
