That is a nice design. You can create a regular unique index where
columns(s)s are not null and then filtered index(es) for the cases where
some of the unique columns are null.
However my point, specifically, was that if the document in question would
have offered alternative solutions, I personal
On Thu, Oct 24, 2019 at 5:31 PM Bruce Momjian wrote:
> Uh, I am wondering if it is just too details for our docs. Can you
> think of some text and its location?
>
>
"Unique indexes on functions can be used to create special types of
constraints, like considering unique values equal (coalesce) or
