Re: possible encoding issues with libxml2 functions

2017-08-21 6:25 GMT+02:00 Pavel Stehule <pavel.stehule@gmail.com>:

>
>
>> xpath-bugfix.patch affected only xml values containing an xml declaration
>> with
>> "encoding" attribute.  In UTF8 databases, this latest proposal
>> (xpath-parsing-error-fix.patch) is equivalent to xpath-bugfix.patch.  In
>> non-UTF8 databases, xpath-parsing-error-fix.patch affects all xml values
>> containing non-ASCII data.  In a LATIN1 database, the following works
>> today
>> but breaks under your latest proposal:
>>
>>   SELECT xpath('text()', ('<x>' || convert_from('\xc2b0', 'LATIN1') ||
>> '</x>')::xml);
>>
>> It's acceptable to break that, since the documentation explicitly
>> disclaims
>> support for it.  xpath-bugfix.patch breaks different use cases, which are
>> likewise acceptable to break.  See my 2017-08-08 review for details.
>>
>
> The fact so this code is working shows so a universe is pretty dangerous
> place :)
>
>
ping?

will we continue in this topic?



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