Skip site navigation (1) Skip section navigation (2)

Tables names from query

From: Philip Shiels <philip(dot)shiels(at)jrc(dot)it>
To: pgsql-interfaces(at)postgresql(dot)org
Subject: Tables names from query
Date: 1999-02-22 10:24:28
Message-ID: 36D1305C.7C6ACB26@jrc.it (view raw or flat)
Thread:
Lists: pgsql-interfaces
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(dot)Shiels(at)jrc(dot)it      JRC Ispra, Italy, TP270
GIST:http://gist.jrc.it

pgsql-interfaces by date

Next:From: Philip ShielsDate: 1999-02-22 10:36:59
Subject: Tables names from query
Previous:From: Arkadi PoliakevitchDate: 1999-02-22 08:53:04
Subject:

Privacy Policy | About PostgreSQL
Copyright © 1996-2014 The PostgreSQL Global Development Group