我有一个自定义类型:
create type some_type as (
some_bool_param boolean,
str varchar
);
我用这种类型的字段创建一个表并插入一些数据:
create table test_table (
strs some_type
);
insert into test_table(strs) values
((false, 'First str'))
, ((false, 'Second str '))
, ((false, 'Third str'))
, ((false, 'Yet another str'));
现在我尝试返回 setofsome_type
数据:
create or replace function get_str() returns setof some_type as
$$
declare
r some_type;
begin
for r in
select * from test_table loop
return next r;
end loop;
return;
end;
我打电话get_str()
:
select * from get_str();
但是得到一个错误:
ERROR: error in boolean type value: "(f,"First str")" CONTEXT: PL/pgSQL function "get_str" line 4 at FOR by result of SELECT
我该如何解决?