Re: Getting server crash on Windows when using ICU collation

On Sat, Jun 17, 2017 at 6:57 AM, Peter Eisentraut
<peter(dot)eisentraut(at)2ndquadrant(dot)com> wrote:
> On 6/16/17 10:12, Peter Eisentraut wrote:
>> On 6/16/17 06:30, Amit Kapila wrote:
>>> How will this compare UTF-8 strings in UTF-8 encoding? It seems to me
>>> that ideally, it should use ucol_strcollUTF8 to compare the same,
>>> however, with patch, it will always ucol_strcoll as we never define
>>> HAVE_UCOL_STRCOLLUTF8 flag on Windows.
>>
>> We have a configure check for that, but I don't know how to replicate
>> that on Windows.
>>
>> If ucol_strcollUTF8 is not available, we have code to convert to UTF-16.
>> This is the same code that is used for non-Windows.
>
> After thinking about this some more, I have committed a change to define
> HAVE_UCOL_STRCOLLUTF8 on Windows unconditionally. Until someone figures
> out a different way, I think it's better that users of newish versions
> of ICU get the newer/better behavior, and users of older versions can
> file a bug.
>

Yeah, we can take that stand or maybe document that as well but not
sure that is the best way to deal with it. I have just posted one way
to determine if icu library has support for ucol_strcollUTF8, see if
that sounds like a way forward to you.

--
With Regards,
Amit Kapila.
EnterpriseDB: http://www.enterprisedb.com