Re: Document NULL

From: "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>
To: Chao Li <li(dot)evan(dot)chao(at)gmail(dot)com>
Cc: Marcos Pegoraro <marcos(at)f10(dot)com(dot)br>, Álvaro Herrera <alvherre(at)kurilemu(dot)de>, jian he <jian(dot)universality(at)gmail(dot)com>, Jeff Davis <pgsql(at)j-davis(dot)com>, Yugo NAGATA <nagata(at)sraoss(dot)co(dot)jp>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Peter Eisentraut <peter(at)eisentraut(dot)org>, David Rowley <dgrowleyml(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Document NULL
Date: 2026-01-30 03:43:45
Message-ID: CAKFQuwYE4TNDAJxAhes6Zc4rixERwRg9My=MPqyprkt5zHF6ow@mail.gmail.com
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On Thu, Jan 29, 2026 at 8:28 PM Chao Li <li(dot)evan(dot)chao(at)gmail(dot)com> wrote:

>
> chaol(at)ChaodeMacBook-Air sgml % make html
> /usr/bin/xmllint --nonet --path . --path . --output postgres-full.xml
> --noent --valid postgres.sgml
> nullvalues.sgml:735: parser error : StartTag: invalid element name
> s | t | Stored = Stored | Stored < Constructor | Stored =
> Constructor
>
>

I had actually caught that failure to use an &lt; entity, but missed doing
a git add....

Anyway, v12 with the approach I prefer...using CDATA to avoid having to
perform entity substitution.

David J.

Attachment Content-Type Size
v12-0001-doc-Provide-an-overview-of-NULL-handling.patch text/x-patch 72.3 KB
v12-0002-Update-all-examples.patch text/x-patch 22.8 KB

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