From: Philip Shiels <philip.shiels@jrc.it>
To: pgsql-interfaces@postgresql.org
Subject: Tables names from query
Date: Mon, 22 Feb 1999 11:24:28 +0100
Message-ID: <36D1305C.7C6ACB26@jrc.it> (raw)
I'm currently developing a postgres DB backend to my current project and have
the following problem. If I execute a query I need to know the table the
returning fields belong to. For example :
SELECT x.y, z.y from x, y where x.key = z.key
The problem with the above is that I get back 2 fields called 'y' and have no
way of knowing from which tables they've come from. The query is arbitrary so I
cannot assume table order in the SQL statement (Icannot assume anything about
the query except that it's a SELECT).
What information from the 'C' or 'C++' APIs can help ?
Is there is a way of identifying the originating tables ?
Thanks
Philip
--------------------------------------------------------------------------
Philip Shiels E-Mail:Philip.Shiels@jrc.it JRC Ispra, Italy, TP270
GIST:http://gist.jrc.it
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-interfaces@postgresql.org
Cc: philip.shiels@jrc.it
Subject: Re: Tables names from query
In-Reply-To: <36D1305C.7C6ACB26@jrc.it>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox