I've got low-level routines coded for interfacing predicate.c to SLRU
to handle old committed transactions, so that SSI can deal with
situations where a large number of transactions are run during the
lifetime of a single serializable transaction. I'm not actually
*using* these new functions yet, but that's what I do next. I would
love it if someone could review this commit and let me know whether
it looks generally sane.
http://git.postgresql.org/gitweb?p=users/kgrittn/postgres.git;a=commitdiff;h=00a0bc6c47c8173e82e5927d9b75fe570280860f
-Kevin