Why is autovacuum_freeze_max_age's default set to 200 million, rather than something like 2 billion? It seems 2 billion is half way to wrap-around and would be a better default. Right now, the default seems to freeze 10x more often than it has to.
Does it default to 200 million so clog can be trimmed? Is that reasonable? We have tuple status flags of commit status so I assume changing from a normal xid to a frozen one doesn't have a performance benefit, does it? -- Bruce Momjian <br...@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com + As you are, so once was I. As I am, so you will be. + + Ancient Roman grave inscription + -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers