On Dienstag 05 Mai 2009 Tom Lane wrote: > Apparently this is just an index, not a constraint (the difference > being that it was made with CREATE INDEX, not ALTER TABLE ADD > CONSTRAINT). Try Is there a performance difference? Or is it just a matter of taste which one you use? Technically, are they both indices, or is the constraint a check that's executed on insert/update, but doesn't store the values? mfg zmi -- // Michael Monnerie, Ing.BSc ----- http://it-management.at // Tel: 0660 / 415 65 31 .network.your.ideas. // PGP Key: "curl -s http://zmi.at/zmi.asc | gpg --import" // Fingerprint: AC19 F9D5 36ED CD8A EF38 500E CE14 91F7 1C12 09B4 // Keyserver: wwwkeys.eu.pgp.net Key-ID: 1C1209B4 -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin