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Re: possible ODBC bug with '-infinity'

From: Hiroshi Inoue <inoue(at)tpf(dot)co(dot)jp>
To: Richard Broersma Jr <rabroersma(at)yahoo(dot)com>
Cc: Greg Cocks <gcocks(at)stoller(dot)com>, Postgresql ODBC List <pgsql-odbc(at)postgresql(dot)org>
Subject: Re: possible ODBC bug with '-infinity'
Date: 2007-12-02 08:25:47
Message-ID: 47526C0B.9060905@tpf.co.jp (view raw or flat)
Thread:
Lists: pgsql-odbc
Richard Broersma Jr wrote:
> --- On Fri, 11/30/07, Greg Cocks <gcocks(at)stoller(dot)com> wrote:
> 
>> Using a MS product? Is this *maybe* related to the same
>> 'issue' with
>> NULLs from PostgreSQL to MS products i.e., in the
>> <postgresql.conf>
>> file, turning 'transform_null_equals' to
>> 'on'?
>>
>> Likely not, but thought I would put it out there...   :-)
>> .. DEFAULT '-infinity', ...
> 
> I should probably clarify what I am seeing.
> 
> I have a table that has a time stamp field.  The timestamp fields have two special values in postgres:  
>   'infinity' which implies '+infinity' 
>   and '-infinity'

ODBC doesn't have such a concept.

> when I create a recordset of records that have the value 'infinity' in the timestamp field all is well.  The client side timestamp displays '9999-12-31 .... '.

Though I have no confidence, I'm doing so.
Do you think it is an appropriate handling ?

> However, when I try to create a recordset that has field that contains the '-infinity' values I get an error message.

How do you think the driver should treat -infinity ?

regards,
Hiroshi Inoue

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