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|
CREATE EXTENSION jsonb_plperl CASCADE;
NOTICE: installing required extension "plperl"
CREATE FUNCTION testHVToJsonb() RETURNS jsonb
LANGUAGE plperl
TRANSFORM FOR TYPE jsonb
AS $$
$val = {a => 1, b => 'boo', c => undef};
return $val;
$$;
SELECT testHVToJsonb();
testhvtojsonb
---------------------------------
{"a": 1, "b": "boo", "c": null}
(1 row)
CREATE FUNCTION testAVToJsonb() RETURNS jsonb
LANGUAGE plperl
TRANSFORM FOR TYPE jsonb
AS $$
$val = [{a => 1, b => 'boo', c => undef}, {d => 2}];
return $val;
$$;
SELECT testAVToJsonb();
testavtojsonb
---------------------------------------------
[{"a": 1, "b": "boo", "c": null}, {"d": 2}]
(1 row)
CREATE FUNCTION testSVToJsonb() RETURNS jsonb
LANGUAGE plperl
TRANSFORM FOR TYPE jsonb
AS $$
$val = 1;
return $val;
$$;
SELECT testSVToJsonb();
testsvtojsonb
---------------
1
(1 row)
CREATE FUNCTION testUVToJsonb() RETURNS jsonb
LANGUAGE plperl
TRANSFORM FOR TYPE jsonb
as $$
$val = ~0;
return $val;
$$;
-- this might produce either 18446744073709551615 or 4294967295
SELECT testUVToJsonb() IN ('18446744073709551615'::jsonb, '4294967295'::jsonb);
?column?
----------
t
(1 row)
-- this revealed a bug in the original implementation
CREATE FUNCTION testRegexpResultToJsonb() RETURNS jsonb
LANGUAGE plperl
TRANSFORM FOR TYPE jsonb
AS $$
return ('1' =~ m(0\t2));
$$;
SELECT testRegexpResultToJsonb();
testregexpresulttojsonb
-------------------------
0
(1 row)
-- this revealed a different bug
CREATE FUNCTION testTextToJsonbObject(text) RETURNS jsonb
LANGUAGE plperl
TRANSFORM FOR TYPE jsonb
AS $$
my $x = shift;
return {a => $x};
$$;
SELECT testTextToJsonbObject('abc');
testtexttojsonbobject
-----------------------
{"a": "abc"}
(1 row)
SELECT testTextToJsonbObject(NULL);
testtexttojsonbobject
-----------------------
{"a": null}
(1 row)
CREATE FUNCTION roundtrip(val jsonb, ref text = '') RETURNS jsonb
LANGUAGE plperl
TRANSFORM FOR TYPE jsonb
AS $$
# can't use Data::Dumper, but let's at least check for unexpected ref type
die 'unexpected '.(ref($_[0]) || 'not a').' reference'
if ref($_[0]) ne $_[1];
return $_[0];
$$;
SELECT roundtrip('null') is null;
?column?
----------
t
(1 row)
SELECT roundtrip('1');
roundtrip
-----------
1
(1 row)
SELECT roundtrip('1E+131071');
ERROR: cannot convert infinity to jsonb
CONTEXT: PL/Perl function "roundtrip"
SELECT roundtrip('-1');
roundtrip
-----------
-1
(1 row)
SELECT roundtrip('1.2');
roundtrip
-----------
1.2
(1 row)
SELECT roundtrip('-1.2');
roundtrip
-----------
-1.2
(1 row)
SELECT roundtrip('"string"');
roundtrip
-----------
"string"
(1 row)
SELECT roundtrip('"NaN"');
roundtrip
-----------
"NaN"
(1 row)
SELECT roundtrip('true');
roundtrip
-----------
1
(1 row)
SELECT roundtrip('false');
roundtrip
-----------
0
(1 row)
SELECT roundtrip('[]', 'ARRAY');
roundtrip
-----------
[]
(1 row)
SELECT roundtrip('[null, null]', 'ARRAY');
roundtrip
--------------
[null, null]
(1 row)
SELECT roundtrip('[1, 2, 3]', 'ARRAY');
roundtrip
-----------
[1, 2, 3]
(1 row)
SELECT roundtrip('[-1, 2, -3]', 'ARRAY');
roundtrip
-------------
[-1, 2, -3]
(1 row)
SELECT roundtrip('[1.2, 2.3, 3.4]', 'ARRAY');
roundtrip
-----------------
[1.2, 2.3, 3.4]
(1 row)
SELECT roundtrip('[-1.2, 2.3, -3.4]', 'ARRAY');
roundtrip
-------------------
[-1.2, 2.3, -3.4]
(1 row)
SELECT roundtrip('["string1", "string2"]', 'ARRAY');
roundtrip
------------------------
["string1", "string2"]
(1 row)
SELECT roundtrip('[["string1", "string2"]]', 'ARRAY');
roundtrip
--------------------------
[["string1", "string2"]]
(1 row)
SELECT roundtrip('{}', 'HASH');
roundtrip
-----------
{}
(1 row)
SELECT roundtrip('{"1": null}', 'HASH');
roundtrip
-------------
{"1": null}
(1 row)
SELECT roundtrip('{"1": 1}', 'HASH');
roundtrip
-----------
{"1": 1}
(1 row)
SELECT roundtrip('{"1": -1}', 'HASH');
roundtrip
-----------
{"1": -1}
(1 row)
SELECT roundtrip('{"1": 1.1}', 'HASH');
roundtrip
------------
{"1": 1.1}
(1 row)
SELECT roundtrip('{"1": -1.1}', 'HASH');
roundtrip
-------------
{"1": -1.1}
(1 row)
SELECT roundtrip('{"1": "string1"}', 'HASH');
roundtrip
------------------
{"1": "string1"}
(1 row)
SELECT roundtrip('{"1": {"2": [3, 4, 5]}, "2": 3}', 'HASH');
roundtrip
---------------------------------
{"1": {"2": [3, 4, 5]}, "2": 3}
(1 row)
\set VERBOSITY terse \\ -- suppress cascade details
DROP EXTENSION plperl CASCADE;
NOTICE: drop cascades to 8 other objects
|
