On Wed, Dec 20, 2017 at 6:08 PM, PG Doc comments form
<noreply@postgresql.org> wrote:
> The following documentation comment has been logged on the website:
>
> Page: https://www.postgresql.org/docs/9.6/static/sql-altertable.html
> Description:
>
> Missing column_constraint explanation in parameters section
Those docs say already that ADD COLUMN follows the same grammar as
CREATE TABLE, which basically means that there is no need to duplicate
the same definition in two places. Note that the same thing applies to
table_constraint.
--
Michael