Re: DOC: fixes multiple errors in alter table doc - Mailing list pgsql-hackers

On Thu, Mar 5, 2026 at 2:06 PM Chao Li <li.evan.chao@gmail.com> wrote:
> > -- alter noexisting table
> > ALTER FOREIGN TABLE IF EXISTS doesnt_exist_ft1 ADD COLUMN c4 integer;
> > +ALTER FOREIGN TABLE IF EXISTS doesnt_exist_ft1 ADD c5 integer;
> > <snip>
> > ALTER FOREIGN TABLE IF EXISTS doesnt_exist_ft1 DROP COLUMN IF EXISTS no_column;
> > +ALTER FOREIGN TABLE IF EXISTS doesnt_exist_ft1 DROP IF EXISTS no_column;
> >
> > Regarding 0002 patch, could you explain the reason for adding these
> > two additional tests? I was just curious why because other four tests that
> > the patch adds seem sufficient.
>
> They are combinations of “IF [NOT] EXISTS” and omitting “COLUMN", I added them just for better coverage.

Which table-level or column-level "IF [NOT] EXISTS" are you referring to?
If you mean the combination of column-level "IF [NOT] EXISTS" with
"COLUMN" omitted, then the first test above should be "ALTER FOREIGN TABLE
IF EXISTS doesnt_exist_ft1 ADD IF NOT EXISTS c5 integer"?

Regards,

--
Fujii Masao