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CREATE OR REPLACE FUNCTION recurse_plperl(i int) RETURNS SETOF TEXT LANGUAGE plperl
AS $$
my $i = shift;
my $res = [];
return $res unless $i > 0;
push @$res, "plperl $i entry: ".((eval "stat;1") ? "ok" : $@);
push @$res, $_
for map { $_->{recurse_plperlu} }
@{spi_exec_query("select * from recurse_plperlu($i-1)")->{rows}};
return $res;
$$;
CREATE OR REPLACE FUNCTION recurse_plperlu(i int) RETURNS SETOF TEXT LANGUAGE plperlu
AS $$
my $i = shift;
my $res = [];
return $res unless $i > 0;
push @$res, "plperlu $i entry: ".((eval "stat;1") ? "ok" : $@);
push @$res, $_
for map { $_->{recurse_plperl} }
@{spi_exec_query("select * from recurse_plperl($i-1)")->{rows}};
return $res;
$$;
SELECT * FROM recurse_plperl(5);
recurse_plperl
------------------------------------------------------------------------
plperl 5 entry: 'stat' trapped by operation mask at (eval 4) line 1.
plperlu 4 entry: ok
plperl 3 entry: 'stat' trapped by operation mask at (eval 5) line 1.
plperlu 2 entry: ok
plperl 1 entry: 'stat' trapped by operation mask at (eval 6) line 1.
(5 rows)
SELECT * FROM recurse_plperlu(5);
recurse_plperlu
------------------------------------------------------------------------
plperlu 5 entry: ok
plperl 4 entry: 'stat' trapped by operation mask at (eval 7) line 1.
plperlu 3 entry: ok
plperl 2 entry: 'stat' trapped by operation mask at (eval 8) line 1.
plperlu 1 entry: ok
(5 rows)
CREATE OR REPLACE FUNCTION use_plperlu() RETURNS void LANGUAGE plperlu
AS $$
use Errno;
$$;
CREATE OR REPLACE FUNCTION use_plperl() RETURNS void LANGUAGE plperl
AS $$
use Errno;
$$;
select use_plperl();
ERROR: creation of Perl function failed: Unable to load Errno.pm into plperl at (eval 9) line 2.
BEGIN failed--compilation aborted at (eval 9) line 2.
select use_plperlu();
use_plperlu
-------------
(1 row)
CREATE OR REPLACE FUNCTION use_plperl() RETURNS void LANGUAGE plperl
AS $$
use Errno;
$$;
select use_plperl();
ERROR: creation of Perl function failed: Unable to load Errno.pm into plperl at (eval 10) line 2.
BEGIN failed--compilation aborted at (eval 10) line 2.
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