On Sat, Apr 17, 2010 at 11:13 AM, Tom Lane <t...@sss.pgh.pa.us> wrote: > Simon Riggs <si...@2ndquadrant.com> writes: >> AFAICS the example you give isn't correct. > >> We would lay out the values like this > >> W-3 W-2 W-1 W 3 4 5 > >> where W is the wrap value > > Stop right there, you're already failing to think clearly. There is no > unique "wrap value", all values act the same in circular XID space.
Or to put it a different way, what happens when the "wrap value" changes? An array that was in order under one wrap value can cease to be in order under another. ...Robert -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
