On Wed, 2009-01-28 at 21:41 +0200, Heikki Linnakangas wrote: > So, you can think of the unobserved xids array as an extension of > ProcArray. The entries are like light-weight PGPROC entries. In fact I > proposed earlier to simply create dummy PGPROC entries instead.
Which we don't do because we don't know whether we are dealing with top-level xids or subtransactions of already observed top-level xids. Either way we have to rearrange things when we move from unobserved to observed. A major difference is that what we have now works and what we might have instead may not, which is being illustrated by recent testing. -- 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
