From: | Bruno Wolff III <bruno(at)wolff(dot)to> |
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To: | pgsql-sql(at)postgresql(dot)org |
Subject: | Re: How to make a IN without a table... ? |
Date: | 2003-06-08 11:11:13 |
Message-ID: | 20030608111113.GA14337@wolff.to |
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Lists: | pgsql-sql |
On Wed, Jun 04, 2003 at 16:59:02 +0200,
David Pradier <dpradier(at)apartia(dot)fr> wrote:
>
> In short, i want to calculate the result of the function my_function for
> some values of my_var1, cross by some values of my_var2.
> These values are not taken in a table, but put in directly.
> They are a lot, so i would prefer not to write the whole thing, line
> after line. (Let's say 10 values for the first, and 40 for the second =>
> 400 lines of code to maintain...)
>
> I really don't see how to do this :-/
You could programatically generate the sql code and use union
(e.g. (select 1 union select 2 union select 3 union select 4))
to join the rows together or you could write a set returning
function.
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