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Re: Issue with libpq < 8.4

From: Magnus Hagander <magnus(at)hagander(dot)net>
To: Guillaume Lelarge <guillaume(at)lelarge(dot)info>
Cc: Dave Page <dpage(at)pgadmin(dot)org>, pgadmin-hackers <pgadmin-hackers(at)postgresql(dot)org>
Subject: Re: Issue with libpq < 8.4
Date: 2010-08-24 13:25:43
Message-ID: AANLkTik-YDEXJHrXMAXvNOQh_COdg8+XOu2viHaj4Rmj@mail.gmail.com (view raw or flat)
Thread:
Lists: pgadmin-hackers
On Tue, Aug 24, 2010 at 2:23 PM, Guillaume Lelarge
<guillaume(at)lelarge(dot)info> wrote:
> Le 24/08/2010 14:05, Magnus Hagander a écrit :
>> On Tue, Aug 24, 2010 at 2:01 PM, Guillaume Lelarge
>> <guillaume(at)lelarge(dot)info> wrote:
>>> Le 24/08/2010 13:51, Dave Page a écrit :
>>>> On Tue, Aug 24, 2010 at 12:48 PM, Magnus Hagander <magnus(at)hagander(dot)net>
>>>> wrote:
>>>>> Actually, what happens if we try to use PQconnect() with
>>>>> applicaiton_name on an older version? I assume it fails, and not just
>>>>> works and ignores it?
>>>>
>>>> iirc, yes.
>>>>
>>>
>>> We have this in the log:
>>>
>>> FATAL:  unrecognized configuration parameter "application_name"
>>>
>>> And then it connects.
>>>
>>> At least with a 9.0 libpq and a 8.3.0 PostgreSQL server.
>>
>> Yeah, the interesting thing would be an 8.3 libpq, if you just throw
>> it the connection string and don't try to use PQparseconnInfo().
>>
>
> It fails. If the user has a 8.3 libpq, we should not send the
> application_name connection parameter.

That means Dave is perfectly correct, and thus someone needs to write
that patch ;)

-- 
 Magnus Hagander
 Me: http://www.hagander.net/
 Work: http://www.redpill-linpro.com/

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