"Vladimir Kokovic" <vladimir.kokovic@a-asoft.com> wrote:
> For ALTER TABLE ADD CONSTRAINT documentation says:
> ADD table_constraint
> This form adds a new constraint to a table using the same syntax
< as CREATE TABLE.
Which is specified as UNIQUE ( column_name [, ... ] )
> But if expression is used
it's not supported syntax, per the above.
> Create index is OK:
as one would expect from the documentation:
( { column | ( expression ) } [ opclass ] [, ...] )
This is not a bug.
Maybe there's a feature request in there, but that would belong on
a different list.
-Kevin