Excerpts from Tom Lane's message of mar jun 08 18:35:00 -0400 2010: > But none of this accomplishes a damn thing towards the original goal, > which was to avoid an extra disk write associated with freezing (not > to mention an extra write for setting the transaction-committed hint > bit). Setting a bit is no cheaper from that standpoint than changing > the xmin field.
... unless the bit is outside the page itself -- so we get back to the idea of a freeze map. -- Álvaro Herrera <alvhe...@commandprompt.com> The PostgreSQL Company - Command Prompt, Inc. PostgreSQL Replication, Consulting, Custom Development, 24x7 support -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
