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Re: SQL function and input variables

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Martín Marqués, 21.09.2011 14:56:
I was makeing an SQL function and got an error which on a sintax that
I thouhgt would work:

CREATE OR REPLACE FUNCTION dicInsertarPalabra(p TEXT)
RETURNS INT AS $body$
	INSERT INTO public.diccionario (palabra) VALUES (quote_literal(p));
	SELECT COALESCE(codigo,0) FROM public.diccionario
	       WHERE palabra = quote_literal(p);
$body$ LANGUAGE 'SQL';

Changing p for $1 in the body of the function makes it work. But,
can't we label input arguments like how I did here?

This is because the language SQL does not support named parameters, only positional ones.

http://www.postgresql.org/docs/current/static/xfunc-sql.html#XFUNC-NAMED-PARAMETERS

Thomas



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