Gregory Stark <stark@xxxxxxxxxxxxxxxx> writes: > Incidentally the visibility bugs are indeed entirely fixed in 8.3. In 8.2 and > before cluster and alter table rewrites can both cause tuples to not appear > for transactions which were started before the cluster or alter table such as > a long-running pg_dump. AFAIK that's true only for CLUSTER, not ALTER TABLE. There would be a bunch of logical inconsistencies in altering rows and then pretending you hadn't. regards, tom lane
