2010-09-11 37 views
2

我有這樣的功能:查詢錯誤,同時用PL/pgSQL的陣列工作

create or replace function insert_aereo(aereo_type[]) returns text as $$ 
begin 
    return 'ok'; 
end 
$$ language plpgsql; 

,這是我創建的參數類型:

create type aereo_type as (codice int, modello varchar, marca varchar); 

然後,我打電話給我的功能:

select insert_aereo('{123, "ciao", "pippo"}'); 

但我得到這個錯誤:

 
ERROR: function insert_aereo(unknown) is not unique at character 8 
HINT: Could not choose a best candidate function. You might need to add explicit type casts. 
STATEMENT: select insert_aereo('{123, "ciao", "pippo"}'); 
ERROR: function insert_aereo(unknown) is not unique 
LINE 1: select insert_aereo('{123, "ciao", "pippo"}'); 
      ^
HINT: Could not choose a best candidate function. You might need to add explicit type casts. 

我該如何解決?我究竟做錯了什麼?

回答