Re: Clarify INCLUDING COMMENTS behavior in CREATE TABLE and CREATE FOREIGN TABLE docs

Matheus Alcantara <matheusssilv97@gmail.com>

From: "Matheus Alcantara" <matheusssilv97@gmail.com>
To: "Fujii Masao" <masao.fujii@gmail.com>, <pgsql-docs@lists.postgresql.org>
Date: 2026-02-19T15:09:57Z
Lists: pgsql-docs
On Tue Feb 17, 2026 at 11:36 AM -03, Fujii Masao wrote:
> Hi,
>
>> Comments for the copied columns, constraints, and indexes will be copied.
>
> The above current description of INCLUDING COMMENTS in the CREATE TABLE docs
> appears inaccurate and incomplete. It says that comments on constraints are
> copied, but in practice only comments on CHECK and NOT NULL constraints
> are copied; comments on other constraints (such as primary keys) are not.
> In addition, comments on extended statistics are copied, but this is not
> documented.
>
> The CREATE FOREIGN TABLE docs has a similar omission: comments on extended
> statistics are also copied, but this is not mentioned.
>
> Therefore I'd like to propose the attached patch to clarify the actual behavior
> of INCLUDING COMMENTS. Thoughts?
>

Hi, thanks for the patch.

The changes make sense to me, it sounds more clear. I've performed some
tests and the documentation seems correct about what comments are
actually copied.

--
Matheus Alcantara
EDB: https://www.enterprisedb.com



Commits

  1. doc: Clarify INCLUDING COMMENTS behavior in CREATE TABLE LIKE.