"Grand Titus" <grand(dot)titus(at)free(dot)fr> writes:
> If I declare AbsoluteURL as UNIQUE, do you think it will be good for the
> efficient of the DB?
It sure beats doing manual uniqueness checks, which is what it sounds
like you are doing now. And you need an index on AbsoluteURL anyway
if you are doing searches on it ...
regards, tom lane