On Oct 22, 2010, at 2:50 PM, Rob Sargent wrote: > Is this "invoice_number" just an id or what might appear an a bill (in > some pretty form etc)? It will appear on actual invoices, as part of a compound invoice identifier (like ABCD-0042, where ABCD is an identifier for the account in question and 42 is the invoice number). > If the former, just get a unique id over all invoices. At the very > least it will save time i) in writing where clauses ii) re-creating the > correct id once some one assigns an invoice to the wrong customer. There will be such an ID, but I do not want to show it directly to users. I want an invoice number independent of whatever surrogate key the database happens to use to uniquely identify rows. (Sorry if you receive this twice, Rob. I accidentally replied to you instead of the list the first time.) -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
