Question

我有这个功能：

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

这是我创建的参数类型：

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

然后我调用我的函数：

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

但是我收到了这个错误：

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.

我该如何解决？我做错了什么？

Answer 1

您使用的是合格类型的错误格式：

正确的格式是：

'{“（123，ciao，pippo）”，“（...）”}

请参阅：http://www.postgresql.org/docs/8.4/interactive/rowtypes.html

或ARRAY [（1，'ciao'，'pippo'）] :: t []

的Pavel

使用PL / pgSQL数组时查询错误

1 个答案: