[SQL] error in function!!

[Ing. Jhon Carrillo]

Hi,   i have a problem  with the following sentence:     CREATE OR REPLACE FUNCTION tschema.sp_actualizar_contacto(p_idpers text,                                                           p_nombre text,                                                           p_apellido text,                                                           p_titulo text,                                                           p_fecnac text,                                                           p_codedociv integer,                                                           p_sexo       text,                                                           p_codpais    integer,                                                           p_pw text,                                                           p_empr text,                                                           p_cargo  text,                                                            p_pwempr text,                                                           p_aniv text,                                                            p_prof text,                                                           p_trab  text,                                                           p_fecgen text,                                                            p_fecing text,                                                           p_fuente text,                                                           p_codupload integer,                                                           cli_codigo integer ) RETURNS text as '   DECLARE    c_codigo         integer;    c_sinc           varchar;    c_idpers         ALIAS for $1;    c_nombre         ALIAS for $2;    c_apellido       ALIAS for $3;    c_titulo         ALIAS for $4;    c_fecnac         ALIAS for $5;    c_codedociv      ALIAS for $6;    c_sexo           ALIAS for $7;    c_codpais        ALIAS for $8;    c_pw             ALIAS for $9;    c_empr           ALIAS for $10;    c_cargo          ALIAS for $11;    c_pwempr         ALIAS for $12;    c_aniv           ALIAS for $13;    c_prof           ALIAS for $14;    c_trab           ALIAS for $15;    c_fecgen         ALIAS for $16;    c_fecing         ALIAS for $17;    c_fuente         ALIAS for $18;    c_codupload      ALIAS for $19;    cli_Codigo       ALIAS for $20; BEGIN    select  nextval(''seq_tbu_contacto_cont_codigo'')  into  c_codigo;    Insert  into  tbu_contacto  (cont_codigo, cont_idpers,cont_nombre,cont_apellido,cont_titulo,cont_fecnac,cont_codedociv,cont_sexo,cont_codpais,cont_pw,cont_empr,cont_cargo,cont_pwempr,cont_aniv,cont_prof,cont_trab,cont_fecgen,cont_fecing,cont_fuente,cont_sinc,cont_codupload) values (c_codigo,c_idpers,c_nombre,c_apellido,c_titulo,to_timestamp(c_fecnac,''YYYY-mm-dd HH:MM:SS''),c_codedociv,c_sexo,1,c_pw,c_empr,c_cargo,c_pwempr,c_aniv,c_prof,c_trab,to_timestamp(c_fecgen,''YYYY-mm-dd HH:MM:SS''),to_timestamp(CURRENT_TIMESTAMP,''YYYY-mm-dd HH:MM:SS'') ,c_fuente,''S'',c_codupload);              return ''OK:''||c_codigo; END; ' LANGUAGE 'plpgsql'     this is the error in pgadmin III on windows (postgresql 8.0):   ERROR:  function tschema.sp_actualizar_contacto(integer, "unknown", "unknown", "unknown", "unknown", "unknown", "unknown", integer, "unknown", "unknown", "unknown", "unknown", "unknown", "unknown", "unknown", "unknown", "unknown", "unknown", "unknown", integer, integer) does not exist HINT:  No function matches the given name and argument types. You may need to add explicit type casts.     I need to know if the "insert sentence" was sucesfull, how do i do?     help me with this please,   thanks!!