Works like a charm! Thank you very much, PostgreSQL really is an awesome database, and so is the community. -----Ursprüngliche Nachricht----- Von: pgsql-general-owner@xxxxxxxxxxxxxx [mailto:pgsql-general-owner@xxxxxxxxxxxxxx] Im Auftrag von David G Johnston Gesendet: Mittwoch, 10. September 2014 15:45 An: pgsql-general@xxxxxxxxxxxxxx Betreff: Re: PARTIAL, DEFERRABLE UNIQUE CONSTRAINTS dmigowski wrote > I need to create a deferrable,unique partial constraint (using a WHERE > clause) on my table I don't know the exact required syntax but the description of the "EXCLUDE" clause to "CREATE TABLE" implies that it can be used to accomplish what you desire. Not tested but something like: EXCLUDE USING btree ( col WITH = ) WHERE ... DEFERRABLE INITIALLY IMMEDIATE http://www.postgresql.org/docs/9.1/static/sql-createtable.html While the documentation says that using btree with EXCLUDE is uncommon this does seem to be a mandatory exception. David J. -- View this message in context: http://postgresql.1045698.n5.nabble.com/PARTIAL-DEFERRABLE-UNIQUE-CONSTRAINTS-tp5818441p5818445.html Sent from the PostgreSQL - general mailing list archive at Nabble.com. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
