Feedback-ID: i76984098:Fastmail
Message-ID: <f5ebd2dd-86ea-47f7-852e-62e3a772e70b@aklaver.com>
Date: Mon, 24 Jun 2024 07:32:45 -0700
MIME-Version: 1.0
User-Agent: Mozilla Thunderbird
Subject: Re: Issue with pgstattuple on Sequences in PostgreSQL
To: Ayush Vatsa <ayushvatsa1810@gmail.com>, pgsql-general@lists.postgresql.org
References: <CACX+KaMOd3HHteOJNX7fkWxO+R=uLJkfKqE2-QUK8fKmKfOwqw@mail.gmail.com>
Content-Language: en-US
From: Adrian Klaver <adrian.klaver@aklaver.com>
In-Reply-To: <CACX+KaMOd3HHteOJNX7fkWxO+R=uLJkfKqE2-QUK8fKmKfOwqw@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 8bit
Archived-At: <https://www.postgresql.org/message-id/f5ebd2dd-86ea-47f7-852e-62e3a772e70b%40aklaver.com>
Precedence: bulk

On 6/24/24 04:09, Ayush Vatsa wrote:
> Hi PostgreSQL Community,
> 
> I was recently exploring the pgstattuple code directory and found this 
> piece of code: 
> https://github.com/postgres/postgres/blob/master/contrib/pgstattuple/pgstattuple.c#L255-L259 <https://github.com/postgres/postgres/blob/master/contrib/pgstattuple/pgstattuple.c#L255-L259>.
> 
> It indicates that pgstattuple supports relations, toast tables, 
> materialized views, and sequences.
> However, when I executed a query with a sequence, I encountered the 
> following error:
> 
> postgres=> CREATE SEQUENCE serial START 101;
> CREATE SEQUENCE
> postgres=> SELECT * FROM pgstattuple('serial');
> ERROR:  only heap AM is supported
> postgres=>

File a bug report here:

https://www.postgresql.org/account/login/?next=/account/submitbug/

> 
> It got stuck in this if condition - 
> https://github.com/postgres/postgres/blob/master/contrib/pgstattuple/pgstattuple.c#L326-L329 <https://github.com/postgres/postgres/blob/master/contrib/pgstattuple/pgstattuple.c#L326-L329>
> How can one use pgstattuple on sequences?
> 
> Regards,
> Ayush Vatsa
> 

-- 
Adrian Klaver
adrian.klaver@aklaver.com