Date: Tue, 22 Nov 2022 14:10:11 -0500
From: Bruce Momjian <bruce@momjian.us>
To: ailjushkin@gmail.com, pgsql-docs@lists.postgresql.org
Subject: Re: nextval parameter is not clear
Message-ID: <Y30ekxQpiIaG9eSl@momjian.us>
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On Tue, Oct 18, 2022 at 08:17:12AM +0000, PG Doc comments form wrote:
> The following documentation comment has been logged on the website:
> 
> Page: https://www.postgresql.org/docs/14/functions-sequence.html
> Description:
> 
> https://www.postgresql.org/docs/14/functions-sequence.html
> 
> I don't see here any hints about how to use this function, and what the
> regclass means.
> How should I understand that sequence_name should be passed as string in
> nextval('sequence_name') ?
> 
> Maybe add some links to other topics or clarify examples for nextval here.

Uh, the last sentence in that section says:

	The sequence to be operated on by a sequence function is specified by a
	regclass argument, which is simply the OID of the sequence in the
	pg_class system catalog. You do not have to look up the OID by hand,
	however, since the regclass data type's input converter will do the work
	for you. See Section 8.19 for details.

-- 
  Bruce Momjian  <bruce@momjian.us>        https://momjian.us
  EDB                                      https://enterprisedb.com

  Indecision is a decision.  Inaction is an action.  Mark Batterson