Re: Two sequences associated with one identity column

From: Rumpi Gravenstein <rgravens(at)gmail(dot)com>
To: Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com>
Cc: "Colin 't Hart" <colinthart(at)gmail(dot)com>, PostgreSQL General <pgsql-general(at)lists(dot)postgresql(dot)org>
Subject: Re: Two sequences associated with one identity column
Date: 2025-10-30 15:22:31
Message-ID: CAEpg1wBP7U6CiaJFz1LeH3A01jRgg6iZsyrmFk_jEHKfWgesdg@mail.gmail.com
Views: Whole Thread | Raw Message | Download mbox | Resend email
Thread:
Lists: pgsql-general

I've seen two indexes created on the same table/column when you create a
primary key as part of table create ddl and then also run a separate create
index statement for the same table/column.

On Thu, Oct 30, 2025 at 10:42 AM Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com>
wrote:

> On 10/30/25 01:55, Colin 't Hart wrote:
> > relname | relnamespace | relpersistence
> > --------------------------+--------------+----------------o
> > <sequence1> | 524799410 | p
> > <sequence2> | 524799410 | p
> > (2 rows)
> >
>
> Well so much for that guess. I was exploring the idea that the sequence
> may have been unlogged at some point and you had both a logged(p) and
> unlogged(u) instance of each.
>
>
> --
> Adrian Klaver
> adrian(dot)klaver(at)aklaver(dot)com
>
>
>

--
Rumpi Gravenstein

In response to

Responses

Browse pgsql-general by date

  From Date Subject
Next Message Dimitrios Apostolou 2025-10-30 15:55:18 Why isn't my table auto-analyzed/vacuumed?
Previous Message Adrian Klaver 2025-10-30 14:42:26 Re: Two sequences associated with one identity column