Re: BUG #4769: xmlconcat produces invalid xml values -> data corruption

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Arjen Nienhuis <a(dot)g(dot)nienhuis(at)gmail(dot)com>
Cc: pgsql-bugs(at)postgresql(dot)org
Subject: Re: BUG #4769: xmlconcat produces invalid xml values -> data corruption
Date: 2010-02-25 23:28:55
Message-ID: 201002252328.o1PNStY04772@momjian.us
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Where are we on this? The 9.0 behavior is the same.

---------------------------------------------------------------------------

Arjen Nienhuis wrote:
>
> The following bug has been logged online:
>
> Bug reference: 4769
> Logged by: Arjen Nienhuis
> Email address: a(dot)g(dot)nienhuis(at)gmail(dot)com
> PostgreSQL version: 8.3.7
> Operating system: Ubuntu 8.10 and 9.04
> Description: xmlconcat produces invalid xml values -> data corruption
> Details:
>
> '<!DOCTYPE html><html/>' is a valid xml document but not a valid xml
> fragment. xmlconcat does not check for this:
>
> SELECT xmlconcat('foo', xmlparse(DOCUMENT '<!DOCTYPE html><html/>'));
> xmlconcat
> ---------------------------
> foo<!DOCTYPE html><html/>
>
> The result is an invalid xml value that can end up in a table.
>
> ==============================================
>
> => SELECT version();
> version
>
> ----------------------------------------------------------------------------
> -------------------------
> PostgreSQL 8.3.7 on x86_64-pc-linux-gnu, compiled by GCC gcc-4.3.real
> (Ubuntu 4.3.3-5ubuntu4) 4.3.3
> (1 row)
>
> libxml2 version is 2.6.32.dfsg-5ubuntu4
>
> =============================================
>
> I tried to test this with 8.4 but the ubuntu ppa has depency problems.
>
> --
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Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
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