Re: Constraint UNIQUE on a column not case sensitive

On Jul 1, 2006, at 22:47 , Daniel CAUNE wrote:

> The idea is to have an index on that column, in a not case  
> sensitive form, i.e. lower(MyColumn).

I think you're really close. Try

CREATE UNIQUE INDEX ci_mycolumn_idx ON mytable(lower(mycolumn));

Does that do what you're looking for?

Michael Glaesemann
grzm seespotcode net