On Sat, 2008-09-13 at 10:48 +0100, Florian G. Pflug wrote: > The main idea was to invert the meaning of the xid array in the snapshot > struct - instead of storing all the xid's between xmin and xmax that are > to be considering "in-progress", the array contained all the xid's > > xmin that are to be considered "completed".
> The downside is that the size of the read-only snapshot is theoretically > unbounded, which poses a bit of a problem if it's supposed to live > inside shared memory... Why do it inverted? That clearly has problems. -- Simon Riggs www.2ndQuadrant.com PostgreSQL Training, Services and Support -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
