On 1/4/14, 8:19 AM, Robert Haas wrote:
Also, while multixactid_freeze_min_age should be low, perhaps a million as you suggest, multixactid_freeze_table_age should NOT be lowered to 3 million or anything like it. If you do that, people who are actually doing lots of row locking will start getting many more full-table scans. We want to avoid that at all cost. I'd probably make the default the same as for vacuum_freeze_table_age, so that mxids only cause extra full-table scans if they're being used more quickly than xids.
Same default as vacuum_freeze_table_age, or default TO vacuum_freeze_table_age? I'm thinking the latter makes more sense... -- Jim C. Nasby, Data Architect j...@nasby.net 512.569.9461 (cell) http://jim.nasby.net -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
