341e166180
Add a new contrib module jsonb_plperl that provides a transform between jsonb and PL/Perl. jsonb values are converted to appropriate Perl types such as arrays and hashes, and vice versa. Author: Anthony Bykov <a.bykov@postgrespro.ru> Reviewed-by: Pavel Stehule <pavel.stehule@gmail.com> Reviewed-by: Aleksander Alekseev <a.alekseev@postgrespro.ru> Reviewed-by: Nikita Glukhov <n.gluhov@postgrespro.ru>
87 lines
1.6 KiB
PL/PgSQL
87 lines
1.6 KiB
PL/PgSQL
CREATE EXTENSION jsonb_plperl CASCADE;
|
|
|
|
|
|
CREATE FUNCTION testHVToJsonb() RETURNS jsonb
|
|
LANGUAGE plperl
|
|
TRANSFORM FOR TYPE jsonb
|
|
AS $$
|
|
$val = {a => 1, b => 'boo', c => undef};
|
|
return $val;
|
|
$$;
|
|
|
|
SELECT testHVToJsonb();
|
|
|
|
|
|
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();
|
|
|
|
|
|
CREATE FUNCTION testSVToJsonb() RETURNS jsonb
|
|
LANGUAGE plperl
|
|
TRANSFORM FOR TYPE jsonb
|
|
AS $$
|
|
$val = 1;
|
|
return $val;
|
|
$$;
|
|
|
|
SELECT testSVToJsonb();
|
|
|
|
|
|
CREATE FUNCTION testRegexpToJsonb() RETURNS jsonb
|
|
LANGUAGE plperl
|
|
TRANSFORM FOR TYPE jsonb
|
|
AS $$
|
|
return ('1' =~ m(0\t2));
|
|
$$;
|
|
|
|
SELECT testRegexpToJsonb();
|
|
|
|
|
|
CREATE FUNCTION roundtrip(val jsonb) RETURNS jsonb
|
|
LANGUAGE plperl
|
|
TRANSFORM FOR TYPE jsonb
|
|
AS $$
|
|
return $_[0];
|
|
$$;
|
|
|
|
|
|
SELECT roundtrip('null');
|
|
SELECT roundtrip('1');
|
|
SELECT roundtrip('1E+131071');
|
|
SELECT roundtrip('-1');
|
|
SELECT roundtrip('1.2');
|
|
SELECT roundtrip('-1.2');
|
|
SELECT roundtrip('"string"');
|
|
SELECT roundtrip('"NaN"');
|
|
|
|
SELECT roundtrip('true');
|
|
SELECT roundtrip('false');
|
|
|
|
SELECT roundtrip('[]');
|
|
SELECT roundtrip('[null, null]');
|
|
SELECT roundtrip('[1, 2, 3]');
|
|
SELECT roundtrip('[-1, 2, -3]');
|
|
SELECT roundtrip('[1.2, 2.3, 3.4]');
|
|
SELECT roundtrip('[-1.2, 2.3, -3.4]');
|
|
SELECT roundtrip('["string1", "string2"]');
|
|
|
|
SELECT roundtrip('{}');
|
|
SELECT roundtrip('{"1": null}');
|
|
SELECT roundtrip('{"1": 1}');
|
|
SELECT roundtrip('{"1": -1}');
|
|
SELECT roundtrip('{"1": 1.1}');
|
|
SELECT roundtrip('{"1": -1.1}');
|
|
SELECT roundtrip('{"1": "string1"}');
|
|
|
|
SELECT roundtrip('{"1": {"2": [3, 4, 5]}, "2": 3}');
|
|
|
|
|
|
DROP EXTENSION plperl CASCADE;
|