Re: XML with invalid chars

Noah Misch <noah@leadboat.com>

From: Noah Misch <noah@leadboat.com>
To: Andrew Dunstan <andrew@dunslane.net>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2011-05-11T23:00:26Z
Lists: pgsql-hackers
On Wed, May 11, 2011 at 06:17:07PM -0400, Andrew Dunstan wrote:
> On 05/09/2011 11:25 PM, Noah Misch wrote:
>> SELECT xmlcomment(E'\ufffe');
>
> That's a bit harder. Do we want to extend these checks to cover  
> surrogates and end of plane characters, which are the remaining  
> forbidden chars? It certainly seems likely to be a somewhat slower test  
> since I think we'd need to process the input strings a Unicode char at a  
> time, but we do that in other places and it seems acceptable. What do  
> people think?

My thinking was that we should only make this flag day for xml-type users if
we're going to fix it all the way.