-- test plperl.on_plperl_init
-- This test tests setting on_plperl_init after loading plperl
LOAD 'plperl';
SET SESSION plperl.on_plperl_init = ' system("/nonesuch"); ';
SHOW plperl.on_plperl_init;
 plperl.on_plperl_init  
------------------------
  system("/nonesuch"); 
(1 row)

DO $$ warn 42 $$ language plperl;
ERROR:  'system' trapped by operation mask at line 1.
CONTEXT:  while executing plperl.on_plperl_init
PL/Perl anonymous code block
--
-- Reconnect (to unload plperl), then test setting on_plperl_init
-- as an unprivileged user
--
\c -
CREATE ROLE regress_plperl_user;
SET ROLE regress_plperl_user;
-- this succeeds, since the GUC isn't known yet
SET SESSION plperl.on_plperl_init = 'test';
RESET ROLE;
LOAD 'plperl';
WARNING:  permission denied to set parameter "plperl.on_plperl_init"
SHOW plperl.on_plperl_init;
 plperl.on_plperl_init 
-----------------------
 
(1 row)

DO $$ warn 42 $$ language plperl;
WARNING:  42 at line 1.
-- now we won't be allowed to set it in the first place
SET ROLE regress_plperl_user;
SET SESSION plperl.on_plperl_init = 'test';
ERROR:  permission denied to set parameter "plperl.on_plperl_init"
RESET ROLE;
DROP ROLE regress_plperl_user;