On 29 May 2011 16:12, Tom Lane <t...@sss.pgh.pa.us> wrote: > Thom Brown <thombr...@gmail.com> writes: >> On 10 January 2009 19:22, Raymond O'Donnell <r...@iol.ie> wrote: >>> On 10/01/2009 19:15, Thom Brown wrote: >>>> I can't find anything in the documentation, but does anyone know if >>>> there is a way to rename a constraint? > >>> I just tried it with a primary key... >>> >>> test=# alter table t1 alter constraint t1_pk rename to t1_pp; >>> ERROR: syntax error at or near "constraint" >>> LINE 1: alter constraint t1_pk rename to t1_pp; >>> >>> ... and as you can see it didn't work. I suppose you could always drop >>> and recreate it with a different name. > >> While this was a sufficient solution for the problem I was having back >> then, it will be problematic for those with large tables as it means >> re-validating the constraint against the entire table. > > Use ALTER INDEX RENAME to rename the index underlying the constraint. > The constraint will follow along.
Not all constraints are based on indexes though. Thom -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
