On Mon, May 21, 2012 at 12:56 PM, Robert Haas <robertmh...@gmail.com> wrote: > At dinner on Friday night at PGCon, the end of the table that included > Tom Lane, Stephen Frost, and myself got to talking about the idea of > including some kind of metapage in every relation, including heap > relations. At least some index relations already have something like > this (cf _bt_initmetapage, _hash_metapinit). I believe that adding > this for all relations, including heaps, would allow us to make > improvements in several areas.
The first thing that jumps to mind is: why can't the metapage be extended to span multiple pages if necessary? I've often wondered why the visibility map isn't stored within the heap itself... merlin -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
