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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 (view raw or flat)
Thread:
Lists: pgsql-bugs
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
  EnterpriseDB                             http://enterprisedb.com
  PG East:  http://www.enterprisedb.com/community/nav-pg-east-2010.do
  + If your life is a hard drive, Christ can be your backup. +

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