Marc Mamin <m.ma...@intershop.de> wrote: > > > > Or this one: > > > > test=*# create unique index on log((case when state = 0 then 0 when > > state = 1 then 1 else null end)); > > CREATE INDEX > > > > > > Now you can insert one '0' and one '1' - value - but no more. > > Hi, > > A partial index would do the same, but requires less space: > > create unique index on log(state) WHERE state IN (0,1);
Right! ;-) Andreas -- Really, I'm not out to destroy Microsoft. That will just be a completely unintentional side effect. (Linus Torvalds) "If I was god, I would recompile penguin with --enable-fly." (unknown) Kaufbach, Saxony, Germany, Europe. N 51.05082°, E 13.56889° -- Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-sql
