--- On Tue, 12/11/07, Pau Marc Munoz Torres <[EMAIL PROTECTED]> wrote:

> Thanks, i'll test it tomorrow

OOPS, I just noticed a mistake.

INSERT INTO SP
     SELECT a, b
       FROM ( VALUES ( 'cesp', 'sp' )) AS tmp( a, b )
  LEFT JOIN Sp
         ON (Sp.col1,Sp.col2)=(tmp.a,tmp.b)
      WHERE (Sp.col1,Sp.col2) IS NULL;

I forgot the parentheses that the FROM clause requires when using the VALUES 
predicate.  Also remember that this only works in PostgreSQL versions >= 8.2.

Regards,
Richard Broersma Jr.

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