--
-- Install the plperl and plperlu extensions
--
-- Before going ahead with the to-be-tested installations, verify that
-- a non-superuser is allowed to install plperl (but not plperlu) when
-- suitable permissions have been granted.
CREATE USER regress_user1;
CREATE USER regress_user2;
SET ROLE regress_user1;
CREATE EXTENSION plperl;  -- fail
ERROR:  permission denied to create extension "plperl"
HINT:  Must have CREATE privilege on current database to create this extension.
CREATE EXTENSION plperlu;  -- fail
ERROR:  permission denied to create extension "plperlu"
HINT:  Must be superuser to create this extension.
RESET ROLE;
DO $$
begin
  execute format('grant create on database %I to regress_user1',
                 current_database());
end;
$$;
SET ROLE regress_user1;
CREATE EXTENSION plperl;
CREATE EXTENSION plperlu;  -- fail
ERROR:  permission denied to create extension "plperlu"
HINT:  Must be superuser to create this extension.
CREATE FUNCTION foo1() returns int language plperl as '1;';
SELECT foo1();
 foo1 
------
    1
(1 row)

-- Must reconnect to avoid failure with non-MULTIPLICITY Perl interpreters
\c -
SET ROLE regress_user1;
-- Should be able to change privileges on the language
revoke all on language plperl from public;
SET ROLE regress_user2;
CREATE FUNCTION foo2() returns int language plperl as '2;';  -- fail
ERROR:  permission denied for language plperl
SET ROLE regress_user1;
grant usage on language plperl to regress_user2;
SET ROLE regress_user2;
CREATE FUNCTION foo2() returns int language plperl as '2;';
SELECT foo2();
 foo2 
------
    2
(1 row)

SET ROLE regress_user1;
-- Should be able to drop the extension, but not the language per se
DROP LANGUAGE plperl CASCADE;
ERROR:  cannot drop language plperl because extension plperl requires it
HINT:  You can drop extension plperl instead.
DROP EXTENSION plperl CASCADE;
NOTICE:  drop cascades to 2 other objects
DETAIL:  drop cascades to function foo1()
drop cascades to function foo2()
-- Clean up
RESET ROLE;
DROP OWNED BY regress_user1;
DROP USER regress_user1;
DROP USER regress_user2;
-- Now install the versions that will be used by subsequent test scripts.
CREATE EXTENSION plperl;
CREATE EXTENSION plperlu;