Larry Rosenman <ler@xxxxxxxxxx> writes: > Question: Do all these need to have a bare index just on the account_id > column, or is a multicolumn index with account_id first > sufficient for the check to be reasonably quick? I would think that such an index would be sufficient, but you could check for yourself by doing something like explain select 1 from <table> where account_id = <something> and verifying that you get an indexscan not a seqscan, for each dependent table. regards, tom lane -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
