BUG #1064: work with temporary table in plpgsql function

The following bug has been logged online:

Bug reference: 1064
Logged by: Sergey

Email address: serg(dot)z(at)list(dot)ru

PostgreSQL version: 7.4

Operating system: FreeBSD

Description: work with temporary table in plpgsql function

Details:

If a followed function is called more once inside one session, then occured
this error:

ERROR: relation with OID 19990 does not exist
CONTEXT: PL/pgSQL function "test_temp" line 3 at SQL statement

TEST FUNCTION:

CREATE OR REPLACE FUNCTION public.test_temp()
RETURNS int4 AS
'begin
create temporary table itable(id int4, name varchar(100));
insert into itable values(1, \'test\');
drop table itable;

return 0;
end;
'
LANGUAGE 'plpgsql' VOLATILE;