> Whenever I try to create a new table "bbb" with foreign key pointing > to "aaa". The operation locks, and reading "aaa" is not possible. The > query also never seems to finish. Do you mean that the ALTER query and subsequent queries are shown as "waiting" in pg_stat_activity? In this case, I'm also wondering why this is inecessary. -- Florian Weimer <fweimer@xxxxxx> BFK edv-consulting GmbH http://www.bfk.de/ Kriegsstraße 100 tel: +49-721-96201-1 D-76133 Karlsruhe fax: +49-721-96201-99 -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance