The following bug has been logged on the website:
Bug reference: 14964
Logged by: Zhou Digoal
Email address: digoal(at)126(dot)com
PostgreSQL version: 10.1
Operating system: centos 7.4 x64
Description:
```
create or replace function f1(int) returns setof record as $$
declare
begin
set local statement_timeout='1ms';
return query select count(*) as cnt, id from a where id<$1 group by id;
end;
$$ language plpgsql strict ;
```
but it can execute every time, which when the query run more than 1ms.