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|
--
-- checkpoint so that if we have a crash in the tests, replay of the
-- just-completed CREATE DATABASE won't discard the core dump file
--
checkpoint;
--
-- Test result value processing
--
CREATE OR REPLACE FUNCTION perl_int(int) RETURNS INTEGER AS $$
return undef;
$$ LANGUAGE plperl;
SELECT perl_int(11);
SELECT * FROM perl_int(42);
CREATE OR REPLACE FUNCTION perl_int(int) RETURNS INTEGER AS $$
return $_[0] + 1;
$$ LANGUAGE plperl;
SELECT perl_int(11);
SELECT * FROM perl_int(42);
CREATE OR REPLACE FUNCTION perl_set_int(int) RETURNS SETOF INTEGER AS $$
return undef;
$$ LANGUAGE plperl;
SELECT perl_set_int(5);
SELECT * FROM perl_set_int(5);
CREATE OR REPLACE FUNCTION perl_set_int(int) RETURNS SETOF INTEGER AS $$
return [0..$_[0]];
$$ LANGUAGE plperl;
SELECT perl_set_int(5);
SELECT * FROM perl_set_int(5);
CREATE TYPE testrowperl AS (f1 integer, f2 text, f3 text);
CREATE OR REPLACE FUNCTION perl_row() RETURNS testrowperl AS $$
return undef;
$$ LANGUAGE plperl;
SELECT perl_row();
SELECT * FROM perl_row();
CREATE OR REPLACE FUNCTION perl_row() RETURNS testrowperl AS $$
return {f2 => 'hello', f1 => 1, f3 => 'world'};
$$ LANGUAGE plperl;
SELECT perl_row();
SELECT * FROM perl_row();
CREATE OR REPLACE FUNCTION perl_set() RETURNS SETOF testrowperl AS $$
return undef;
$$ LANGUAGE plperl;
SELECT perl_set();
SELECT * FROM perl_set();
CREATE OR REPLACE FUNCTION perl_set() RETURNS SETOF testrowperl AS $$
return [
{ f1 => 1, f2 => 'Hello', f3 => 'World' },
undef,
{ f1 => 3, f2 => 'Hello', f3 => 'PL/Perl' }
];
$$ LANGUAGE plperl;
SELECT perl_set();
SELECT * FROM perl_set();
CREATE OR REPLACE FUNCTION perl_set() RETURNS SETOF testrowperl AS $$
return [
{ f1 => 1, f2 => 'Hello', f3 => 'World' },
{ f1 => 2, f2 => 'Hello', f3 => 'PostgreSQL' },
{ f1 => 3, f2 => 'Hello', f3 => 'PL/Perl' }
];
$$ LANGUAGE plperl;
SELECT perl_set();
SELECT * FROM perl_set();
CREATE OR REPLACE FUNCTION perl_record() RETURNS record AS $$
return undef;
$$ LANGUAGE plperl;
SELECT perl_record();
SELECT * FROM perl_record();
SELECT * FROM perl_record() AS (f1 integer, f2 text, f3 text);
CREATE OR REPLACE FUNCTION perl_record() RETURNS record AS $$
return {f2 => 'hello', f1 => 1, f3 => 'world'};
$$ LANGUAGE plperl;
SELECT perl_record();
SELECT * FROM perl_record();
SELECT * FROM perl_record() AS (f1 integer, f2 text, f3 text);
CREATE OR REPLACE FUNCTION perl_record_set() RETURNS SETOF record AS $$
return undef;
$$ LANGUAGE plperl;
SELECT perl_record_set();
SELECT * FROM perl_record_set();
SELECT * FROM perl_record_set() AS (f1 integer, f2 text, f3 text);
CREATE OR REPLACE FUNCTION perl_record_set() RETURNS SETOF record AS $$
return [
{ f1 => 1, f2 => 'Hello', f3 => 'World' },
undef,
{ f1 => 3, f2 => 'Hello', f3 => 'PL/Perl' }
];
$$ LANGUAGE plperl;
SELECT perl_record_set();
SELECT * FROM perl_record_set();
SELECT * FROM perl_record_set() AS (f1 integer, f2 text, f3 text);
CREATE OR REPLACE FUNCTION perl_record_set() RETURNS SETOF record AS $$
return [
{ f1 => 1, f2 => 'Hello', f3 => 'World' },
{ f1 => 2, f2 => 'Hello', f3 => 'PostgreSQL' },
{ f1 => 3, f2 => 'Hello', f3 => 'PL/Perl' }
];
$$ LANGUAGE plperl;
SELECT perl_record_set();
SELECT * FROM perl_record_set();
SELECT * FROM perl_record_set() AS (f1 integer, f2 text, f3 text);
CREATE OR REPLACE FUNCTION
perl_out_params(f1 out integer, f2 out text, f3 out text) AS $$
return {f2 => 'hello', f1 => 1, f3 => 'world'};
$$ LANGUAGE plperl;
SELECT perl_out_params();
SELECT * FROM perl_out_params();
SELECT (perl_out_params()).f2;
CREATE OR REPLACE FUNCTION
perl_out_params_set(out f1 integer, out f2 text, out f3 text)
RETURNS SETOF record AS $$
return [
{ f1 => 1, f2 => 'Hello', f3 => 'World' },
{ f1 => 2, f2 => 'Hello', f3 => 'PostgreSQL' },
{ f1 => 3, f2 => 'Hello', f3 => 'PL/Perl' }
];
$$ LANGUAGE plperl;
SELECT perl_out_params_set();
SELECT * FROM perl_out_params_set();
SELECT (perl_out_params_set()).f3;
--
-- Check behavior with erroneous return values
--
CREATE TYPE footype AS (x INTEGER, y INTEGER);
CREATE OR REPLACE FUNCTION foo_good() RETURNS SETOF footype AS $$
return [
{x => 1, y => 2},
{x => 3, y => 4}
];
$$ LANGUAGE plperl;
SELECT * FROM foo_good();
CREATE OR REPLACE FUNCTION foo_bad() RETURNS footype AS $$
return {y => 3, z => 4};
$$ LANGUAGE plperl;
SELECT * FROM foo_bad();
CREATE OR REPLACE FUNCTION foo_bad() RETURNS footype AS $$
return 42;
$$ LANGUAGE plperl;
SELECT * FROM foo_bad();
CREATE OR REPLACE FUNCTION foo_bad() RETURNS footype AS $$
return [
[1, 2],
[3, 4]
];
$$ LANGUAGE plperl;
SELECT * FROM foo_bad();
CREATE OR REPLACE FUNCTION foo_set_bad() RETURNS SETOF footype AS $$
return 42;
$$ LANGUAGE plperl;
SELECT * FROM foo_set_bad();
CREATE OR REPLACE FUNCTION foo_set_bad() RETURNS SETOF footype AS $$
return {y => 3, z => 4};
$$ LANGUAGE plperl;
SELECT * FROM foo_set_bad();
CREATE OR REPLACE FUNCTION foo_set_bad() RETURNS SETOF footype AS $$
return [
[1, 2],
[3, 4]
];
$$ LANGUAGE plperl;
SELECT * FROM foo_set_bad();
CREATE OR REPLACE FUNCTION foo_set_bad() RETURNS SETOF footype AS $$
return [
{y => 3, z => 4}
];
$$ LANGUAGE plperl;
SELECT * FROM foo_set_bad();
--
-- Check passing a tuple argument
--
CREATE OR REPLACE FUNCTION perl_get_field(footype, text) RETURNS integer AS $$
return $_[0]->{$_[1]};
$$ LANGUAGE plperl;
SELECT perl_get_field((11,12), 'x');
SELECT perl_get_field((11,12), 'y');
SELECT perl_get_field((11,12), 'z');
--
-- Test return_next
--
CREATE OR REPLACE FUNCTION perl_srf_rn() RETURNS SETOF RECORD AS $$
my $i = 0;
for ("World", "PostgreSQL", "PL/Perl") {
return_next({f1=>++$i, f2=>'Hello', f3=>$_});
}
return;
$$ language plperl;
SELECT * from perl_srf_rn() AS (f1 INTEGER, f2 TEXT, f3 TEXT);
--
-- Test spi_query/spi_fetchrow
--
CREATE OR REPLACE FUNCTION perl_spi_func() RETURNS SETOF INTEGER AS $$
my $x = spi_query("select 1 as a union select 2 as a");
while (defined (my $y = spi_fetchrow($x))) {
return_next($y->{a});
}
return;
$$ LANGUAGE plperl;
SELECT * from perl_spi_func();
---
--- Test recursion via SPI
---
CREATE OR REPLACE FUNCTION recurse(i int) RETURNS SETOF TEXT LANGUAGE plperl
AS $$
my $i = shift;
foreach my $x (1..$i)
{
return_next "hello $x";
}
if ($i > 2)
{
my $z = $i-1;
my $cursor = spi_query("select * from recurse($z)");
while (defined(my $row = spi_fetchrow($cursor)))
{
return_next "recurse $i: $row->{recurse}";
}
}
return undef;
$$;
SELECT * FROM recurse(2);
SELECT * FROM recurse(3);
---
--- Test arrary return
---
CREATE OR REPLACE FUNCTION array_of_text() RETURNS TEXT[][]
LANGUAGE plperl as $$
return [['a"b','c,d'],['e\\f','g']];
$$;
SELECT array_of_text();
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