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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Richard Jones <rich@annexia.org>
Cc: pgsql-interfaces@postgresql.org
Subject: Re: Parse a statement, get parameter types and return types
Date: Mon, 18 Jul 2005 09:58:44 -0400
Message-ID: <2839.1121695124@sss.pgh.pa.us> (raw)
In-Reply-To: <20050718130337.GA23201@furbychan.cocan.org>
References: <20050718130337.GA23201@furbychan.cocan.org>

Richard Jones <rich@annexia.org> writes:
> Given a statement, eg:
>   select foo from bar where col = $1

> I'd really like to get the types deduced by the PostgreSQL parser for
> the input variables ($1, etc.) and the result column(s).

This is possible at the protocol level -- see Describe Statement.
I'm not sure which client libraries let you get at the results ...
libpq isn't one of them :-(

			regards, tom lane



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