Re: BUG #17720: pg_dump creates a dump with primary key that cannot be restored, when specifying 'using index ...' - Mailing list pgsql-bugs

> On 15 Dec 2022, at 00:27, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>
> Daniel Gustafsson <daniel@yesql.se> writes:
>> The attached prohibits the use of NULLS NOT DISTINCT for backing primary key
>> constraints but allow them for unique constraints.  Is this along the lines of
>> what you had in mind?
>
> Needs more than zero comments in the code, and why bother testing
> is_alter_table in index_check_primary_key?  We're disallowing
> this case across-the-board, no matter how you get to it.

That was an, admittedly poor, attempt at self-documenting code.  Removed and
comments added in the attached.

--
Daniel Gustafsson        https://vmware.com/