On Thu, 11 Aug 2011, Steve Atkins wrote:
This will fail if any of the existing values are integers in the range that you're inserting - and it may fail in the future, as you add new records if they clash with existing entries.
Steve/Chris/Dave: I had not looked in deatil at that column before. Having just done this, I see that it's really a laboratory number, not a unique sample ID. So, I renamed sample_id to lab_nbr, added a sample_id column, created the sequence sample_id_seq, updated the table with it, then added the constraint that sample_id is the primary key. Thank you all very much! Rich -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
