I am in the design phase of a new db so I cannot test queries using explain/analyze yet, but regarding performance, is there any difference in doing this: CREATE TABLE something (name text, age smallint, ...other columns..., comment text); compared to this: CREATE TABLE comments (id serial primary key, comment text); CREATE TABLE something (name text, age smallint, ...other columns..., comment integer REFERENCES comments(id)); ? The comments field will be used here and there but I expect it will most often be NULL. -- - Rikard -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general