From: | Shachar Shemesh <psql(at)shemesh(dot)biz> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Hackers <pgsql-hackers(at)postgresql(dot)org>, PostgreSQL OLE DB development <oledb-dev(at)gborg(dot)postgresql(dot)org> |
Subject: | Re: Getting the results columns before execution |
Date: | 2004-01-19 16:09:28 |
Message-ID: | 400C0138.4050608@shemesh.biz |
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Lists: | pgsql-hackers |
Tom Lane wrote:
>Shachar Shemesh <psql(at)shemesh(dot)biz> writes:
>
>
>>... This is a problem, as merely preparing a command is
>>not enough to get the returned rows information.
>>
>>
>
>Sure it is, if you are using the V3 protocol (new in 7.4).
>See the Describe message types.
>
> regards, tom lane
>
>
Are those exposed through the libpq interface?
If not, is there a way to use the libpq interface for most operations,
and only for the rest to use whatever it is you are suggesting I use
(couldn't locate it in the docs, yet)
Funnily enough, mandating protocol version 3 is not my problem at the
moment. I may have to do so for a host of other reasons as well. I
guess, if you want to use an earlier version of the database, you will
have to make do with the ole db to ODBC interface.
Shachar
--
Shachar Shemesh
Lingnu Open Systems Consulting
http://www.lingnu.com/
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