Subject: Re: Determining the DATE format with libpq
To: pgsql-sql@postgresql.org
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 <16272.1503588417@sss.pgh.pa.us>
 <350a1d87-6abc-f149-9251-e28285504301@4js.com>
From: Sebastien FLAESCH <sf@4js.com>
Organization: Four Js Development Tools
Message-ID: <a1236c41-584b-bbb1-b6ea-01d0dfffa000@4js.com>
Date: Fri, 25 Aug 2017 10:13:19 +0200
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I appologize for my poor English...
I was just wondering about the overhead of a call to PQparameterStatus().
After some tests, it appears to be minor.
Anyway, thanks for your help!
Seb

On 08/24/2017 05:44 PM, Sebastien FLAESCH wrote:
> Whoooooo that's perfect!!!
>
> I hope it has not a big cost?
>
> Can I use this each time I fetch a result set?
>
> Even row by row with a server cursor?
>
> Seb
>
> On 08/24/2017 05:26 PM, Tom Lane wrote:
>> Sebastien FLAESCH <sf@4js.com> writes:
>>> Is there a way to know the current date format used in the SQL session?
>>> Ideally, we expect a libpq API.
>>
>> Use PQparameterStatus().
>>
>>> We cannot do a "SHOW DateStyle" each time we executing a SELECT!
>>
>> You don't have to --- the server automatically reports changes in the
>> value of that parameter.
>>
>>             regards, tom lane
>>
>>
>
>
>


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