Tom Lane escribió: > Are you saying you intend to revert that whole concept? That'd be > okay with me, I think. Otherwise we need some thought about how to > inform the stats collector what's really happening.
Maybe what we need is to consider table truncation as a separate activity from vacuuming. Then autovacuum could invoke it without having to do a full-blown vacuum. For this to work, I guess we would like to separately store the status of the back-scan in pgstat somehow (I think a boolean flag suffices: "were we able to truncate all pages that appeared to be empty?") -- Álvaro Herrera http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
