Is it possible to create an alias for an existing type, so that I can refer to it with a simple name, and possibly change it in the future? Something like: create type-alias issn as char(9) Without that it looks like I have to do create type issn ( input=charin, output=charout, internallength=9, externallength=9, element='char' ) then insert a row to pg_opclass, after attempting to use the new type to find its ID. Surely there's an easier way? -- Peter Haworth [EMAIL PROTECTED] "Never tell people how to do things. Tell them WHAT to do and they will surprise you with their ingenuity." -- Gen. George S. Patton, Jr. ************