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Date: Mon, 14 Mar 2005 23:18:27 -0700
From: Luca Pireddu <lucap@shaw.ca>
Subject: select multiple immediate values, but in multiple rows
To: pgsql-sql@postgresql.org
Reply-To: lucap@personainternet.com
Message-id: <200503142318.27510.lucap@shaw.ca>
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Hello all.  I'd like to write a query does a set subtraction A - B, but A is 
is a set of constants that I need to provide in the query as immediate 
values.  I thought of something like

select a from (1,2,3.4)
except
select col_name from table;

but I don't know the syntax to specify my set of constants.  I thought of 
doing
 select 1 union select 2 union select 3 union ... except ...
but I figure there must be a better way.  The size of the set would be 
anywhere between 1 and about 5 or 6 elements.  Is there a better way to do 
this?

Thanks.

Luca