From: | Philip Shiels <philip(dot)shiels(at)jrc(dot)it> |
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To: | pgsql-interfaces(at)postgresql(dot)org |
Subject: | Tables names from query |
Date: | 1999-02-22 13:26:37 |
Message-ID: | 36D15B0D.B57DB69C@jrc.it |
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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
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Philip Shiels E-Mail:Philip(dot)Shiels(at)jrc(dot)it JRC Ispra, Italy, TP270
GIST:http://gist.jrc.it CEO:http://www.ceo.org GEM:http://gem.jrc.it
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