Re: Add primary keys to system catalogs

Andres Freund <andres@anarazel.de>

From: Andres Freund <andres@anarazel.de>
To: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
Cc: pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2020-10-06T18:34:50Z
Lists: pgsql-hackers
Hi,

On 2020-10-03 08:40:31 +0200, Peter Eisentraut wrote:
> Since we have ADD PRIMARY KEY USING INDEX, we can declare a primary key for
> an existing index.  So this doesn't have to affect the low-level early
> bootstrapping.  The attached patch adds those commands manually. Another
> option might be to have the catalog generation Perl tooling create those
> declarations automatically from some marker in the catalog files.  That
> would also allow declaring unique constraints for the unique indexes that
> don't end up being the primary key.

Hm. What prevents us from declaring the pkey during bootstrap? I don't
at all like adding yet another place that needs manual editing when
doing DDL changes.

Greetings,

Andres Freund



Commits

  1. Add primary keys and unique constraints to system catalogs