PostgreSQL函數UNKOWN參數

Question

這是我的表

CREATE TABLE pago 
(
    codigo serial NOT NULL, 
    codigocaja integer NOT NULL, 
    codigotarjeta integer, 
    codigocheque integer, 
    formapago character varying(1) NOT NULL, 
    tipocomp character varying(1) NOT NULL, 
    importetotal money NOT NULL, 
    fecha date NOT NULL, 
    codigoalumno integer NOT NULL, 
    codigodeposito integer, 
    vigencia boolean NOT NULL DEFAULT true, 
    descripcion character varying(200), 
    CONSTRAINT "PK_CodigoPago" PRIMARY KEY (codigo), 
    CONSTRAINT "FK_CodigoAlumno" FOREIGN KEY (codigoalumno) 
     REFERENCES alumno (codigoalumno) MATCH SIMPLE 
     ON UPDATE NO ACTION ON DELETE NO ACTION, 
    CONSTRAINT "FK_CodigoCaja" FOREIGN KEY (codigocaja) 
     REFERENCES caja (codigo) MATCH SIMPLE 
     ON UPDATE NO ACTION ON DELETE NO ACTION, 
    CONSTRAINT "FK_CodigoCheque" FOREIGN KEY (codigocheque) 
     REFERENCES cheque (codigo) MATCH SIMPLE 
     ON UPDATE NO ACTION ON DELETE NO ACTION, 
    CONSTRAINT "FK_CodigoDeposito" FOREIGN KEY (codigodeposito) 
     REFERENCES deposito (codigo) MATCH SIMPLE 
     ON UPDATE NO ACTION ON DELETE NO ACTION, 
    CONSTRAINT "FK_CodigoTarjeta" FOREIGN KEY (codigotarjeta) 
     REFERENCES tarjeta (codigo) MATCH SIMPLE 
     ON UPDATE NO ACTION ON DELETE NO ACTION, 
    CONSTRAINT "UN_CodigoPago" UNIQUE (codigo) 
) 
WITH (
    OIDS=FALSE 
); 
ALTER TABLE pago 
    OWNER TO postgres; 

，這是我對加入新行

CREATE OR REPLACE FUNCTION fn_inspagar(vcodcaja integer, vcodtarjeta integer, vcodcheque integer, vformapago character varying, vtipocomp character varying,vimporte money ,vfecha date, vcodal integer, vcoddeposito integer,vdesc character varying) 
    RETURNS void AS 
$BODY$ 
begin 

INSERT INTO pago(codigocaja,codigotarjeta,codigocheque,formapago,tipocomp,importetotal,fecha,codigoalumno,codigodeposito,descripcion) 
VALUES (vcodcaja,vcodtarjeta,vcodcheque,vformapago,vtipocomp,vimporte,vfecha,vcodal,vcoddeposito,vdesc); 

end; 
$BODY$ 
    LANGUAGE plpgsql VOLATILE 
    COST 100; 

和功能，當我執行這樣

select * from fn_inspagar(1,2,null,'T','B',200,'2013-01-01',196,0,'matricula') 

功能結果我有以下

錯誤：沒有existe lafunciónfn_inspagar（整數，整數，整數，未知，未知，整數，未知，整數，整數，未知）

Answer 1

因爲錢的類型不是一個'平凡的轉換'，你需要投在你的例子中，當調用該函數時，值爲money（否則PostgreSQL賦予整數轉換的優先級）。

工作例如：

select * from fn_inspagar(1,2, null, 'T', 'B',CAST (200 as money) , '2013-01-01' ,196,0, 'matricula') 

這裏看看讓PostgreSQL上如何處理的函數簽名更多的信息：我想你已經錯過了

• http://www.postgresql.org/docs/current/interactive/typeconv-func.html