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To: pgsql-general@postgresql.org, "c k" <shreeseva.learning@gmail.com>
Subject: Re: getting list of columns from a query
References: <AANLkTinV9TbfsaKa2cgVJdLBG500OaeyeoH=bKqOwA6f@mail.gmail.com>
Date: Sun, 22 Aug 2010 13:18:00 -0700
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From: "Octavio Alvarez" <alvarezp@alvarezp.ods.org>
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In-Reply-To: <AANLkTinV9TbfsaKa2cgVJdLBG500OaeyeoH=bKqOwA6f@mail.gmail.com>
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On Sun, 22 Aug 2010 10:27:52 -0700, c k <shreeseva.learning@gmail.com>  
wrote:

> Hi all,
> As I am using MS Access for a long time, many tools like ms access  
> provides
> a way to get the list of columns from a query. (using filed list in combo
> boxes in ms access). But is it possible to get such list of columns from  
> a
> query where it is not known to the user, that which columns are defined  
> in
> the base 'SELECT' statement? How? I dynamically created SQL statements  
> many
> times this situation occurs where the columns are not fixed and we have  
> to
> get the list of columns from such a query.
> Thanks in advance.

I am removing psql-admin from the Cc to avoid crossposting. Besides, I
am not sure if it is on-topic there or not.

Which version of PostgreSQL? Anyway, if you create the SELECT statement
dynamically you could know a priori what columns would result, AFAIU.

-- 
Octavio.