I doubt the documentation for old_snapshot_threshold is going to be understood by many ordinary users. What is a "snapshot", first of all? Why would a snapshot be old? Why is that a problem? What can I do to avoid it? What are the circumstances in practice where this issue would arise, and what are the trade-offs? Where can I see existing snapshots and how old they are?
-- Peter Eisentraut http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers