--- /dev/null
+-- test warnings and errors from plperl
+create or replace function perl_elog(text) returns void language plperl as $$
+
+ my $msg = shift;
+ elog(NOTICE,$msg);
+
+$$;
+select perl_elog('explicit elog');
+NOTICE: explicit elog
+CONTEXT: PL/Perl function "perl_elog"
+ perl_elog
+-----------
+
+(1 row)
+
+create or replace function perl_warn(text) returns void language plperl as $$
+
+ my $msg = shift;
+ warn($msg);
+
+$$;
+select perl_warn('implicit elog via warn');
+WARNING: implicit elog via warn at line 4.
+CONTEXT: PL/Perl function "perl_warn"
+ perl_warn
+-----------
+
+(1 row)
+
+-- test strict mode on/off
+SET plperl.use_strict = true;
+create or replace function uses_global() returns text language plperl as $$
+
+ $global = 1;
+ $other_global = 2;
+ return 'uses_global worked';
+
+$$;
+ERROR: Global symbol "$global" requires explicit package name (did you forget to declare "my $global"?) at line 3.
+Global symbol "$other_global" requires explicit package name (did you forget to declare "my $other_global"?) at line 4.
+CONTEXT: compilation of PL/Perl function "uses_global"
+select uses_global();
+ERROR: function uses_global() does not exist
+LINE 1: select uses_global();
+ ^
+HINT: No function matches the given name and argument types. You might need to add explicit type casts.
+SET plperl.use_strict = false;
+create or replace function uses_global() returns text language plperl as $$
+
+ $global = 1;
+ $other_global=2;
+ return 'uses_global worked';
+
+$$;
+select uses_global();
+ uses_global
+--------------------
+ uses_global worked
+(1 row)
+
+-- make sure we don't choke on readonly values
+do language plperl $$ elog(NOTICE, ${^TAINT}); $$;
+NOTICE: 0
+CONTEXT: PL/Perl anonymous code block
+-- test recovery after "die"
+create or replace function just_die() returns void language plperl AS $$
+die "just die";
+$$;
+select just_die();
+ERROR: just die at line 2.
+CONTEXT: PL/Perl function "just_die"
+create or replace function die_caller() returns int language plpgsql as $$
+BEGIN
+ BEGIN
+ PERFORM just_die();
+ EXCEPTION WHEN OTHERS THEN
+ RAISE NOTICE 'caught die';
+ END;
+ RETURN 1;
+END;
+$$;
+select die_caller();
+NOTICE: caught die
+ die_caller
+------------
+ 1
+(1 row)
+
+create or replace function indirect_die_caller() returns int language plperl as $$
+my $prepared = spi_prepare('SELECT die_caller() AS fx');
+my $a = spi_exec_prepared($prepared)->{rows}->[0]->{fx};
+my $b = spi_exec_prepared($prepared)->{rows}->[0]->{fx};
+return $a + $b;
+$$;
+select indirect_die_caller();
+NOTICE: caught die
+CONTEXT: SQL statement "SELECT die_caller() AS fx"
+PL/Perl function "indirect_die_caller"
+NOTICE: caught die
+CONTEXT: SQL statement "SELECT die_caller() AS fx"
+PL/Perl function "indirect_die_caller"
+ indirect_die_caller
+---------------------
+ 2
+(1 row)
+