--DROP FUNCTION strtoint(character varying, integer);
CREATE OR REPLACE FUNCTION strtoint(
    txt character varying,
    def integer DEFAULT 0)
  RETURNS bigint AS
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BEGIN

	return case when((coalesce(txt, '') ~ E'^(\\-|\\+)?\\d+$')) then txt::bigint else def end;
END;
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  LANGUAGE plpgsql VOLATILE
  COST 100;
ALTER FUNCTION strtoint(character varying, integer)
  OWNER TO contacte;