> However, a SELECT eventually fails with "canceling statement due to conflict > with recovery". > > Where else can I check, or what else can I do to determine what the problem > is? ...or maybe there _is_ no problem. select count(*) from big_table; -- will fail because it's long-lived and rows are changing (deletes, inserts, updates) underneath it. select * from big_table where id=nnn; -- succeeds because the window for something in that particular row to change during the select is too small. All's good! Sorry about the noise. h -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general