system column

On Wednesday, February 7, 2024, PG Doc comments form <noreply@postgresql.org>
wrote:

The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/16/ddl-system-columns.html
Description:

Will be clear to have a picture of how they are in the database.

Do you have a specific question you were trying to answer that you were
unable to using this documentation? The internal implementation details of
these fields is not published intentionally. The user needs only to know
that these column exist and can be retrieved in queries which ks what we
documented here.

David J.