From: Tom Lane <tgl@sss.pgh.pa.us>
To: L J Bayuk <ljb220@mindspring.com>
Cc: Bshrivastav@esri.com
Cc: pgsql-interfaces@postgresql.org
Subject: Re: Is there a way to describe precision and scale for columns in a s
Date: Sun, 06 Jun 2004 23:34:19 -0400
Message-ID: <23545.1086579259@sss.pgh.pa.us> (raw)
In-Reply-To: <200406070044.i570i4LN000718@mindspring.com>
References: <200406070044.i570i4LN000718@mindspring.com>
L J Bayuk <ljb220@mindspring.com> writes:
> Brijesh Shrivastav wrote:
>> It seems I can't get the select column information untill I perform an
>> PQexecPrepared().
>> Is there any way around it?
> I don't think so. The protocol supports it ("Describe" message on a named
> prepared statement, without Bind or Execute), and I assume the backend
> would play along, but I don't think libpq has any way to let you do it
> in the current release.
libpq doesn't currently have any API to let you get at
Describe-Statement. This is obviously something to fix. There are
actually quite a few aspects of the v3 backend protocol that libpq
has no API for as yet. I would like to see someone think about prepared
statements and parameters in general, and put forward a coherent
proposed API for the whole mess. But short of that, we could accept
a solution for this particular issue ...
regards, tom lane
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To: pgsql-interfaces@postgresql.org
Cc: tgl@sss.pgh.pa.us, ljb220@mindspring.com, Bshrivastav@esri.com
Subject: Re: Is there a way to describe precision and scale for columns in a s
In-Reply-To: <23545.1086579259@sss.pgh.pa.us>
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