DROP DATABASE IF EXISTS json_value_db;
CREATE DATABASE json_value_db;
USE json_value_db;
# ----------------------------------------------------------------------
# Test of JSON_VALUE function.
# ----------------------------------------------------------------------
CREATE TABLE t1(s TEXT, p TEXT) ENGINE = columnstore;
INSERT INTO t1 VALUES('{"key1":123}', '$.key2'),
('{"key1":123}', '$.key1'),
('{"key1":[1,2,3]}', '$.key1'),
('{"key1": [1,2,3], "key1":123}', '$.key1'),
('{ "x": [0,1], "y": "[0,1]", "z": "Mon\\\"t\\\"y" }','$.z'),
('{"\\"key1":123}', '$."\\"key1"'),
('{"\\"key1\\"":123}', '$."\\"key1\\""'),
('{"key 1":123}', '$."key 1"');
SELECT s as json_text, p as path, JSON_VALUE(s, p) as json_value, JSON_QUERY(s, p) as json_query
FROM t1;
json_text	path	json_value	json_query
{"key1":123}	$.key2	NULL	NULL
{"key1":123}	$.key1	123	NULL
{"key1":[1,2,3]}	$.key1	NULL	[1,2,3]
{"key1": [1,2,3], "key1":123}	$.key1	123	[1,2,3]
{ "x": [0,1], "y": "[0,1]", "z": "Mon\"t\"y" }	$.z	Mon"t"y	NULL
{"\"key1":123}	$."\"key1"	123	NULL
{"\"key1\"":123}	$."\"key1\""	123	NULL
{"key 1":123}	$."key 1"	123	NULL
CREATE TABLE t2(s TEXT) ENGINE = columnstore;
INSERT INTO t2 VALUES('{"key1":123, "key2":{"key3":"value3"}}'),
('{"key1":123, "key3":[1,2,3]}'),
('{"key1":123, "key2":"[1]"}');
SELECT s as json_text, '$.key1' , JSON_VALUE(s, '$.key1') as json_value, JSON_QUERY(s, '$.key1') as json_query
FROM t2;
json_text	$.key1	json_value	json_query
{"key1":123, "key2":{"key3":"value3"}}	$.key1	123	NULL
{"key1":123, "key3":[1,2,3]}	$.key1	123	NULL
{"key1":123, "key2":"[1]"}	$.key1	123	NULL
SELECT s as json_text, '$.key2' , JSON_VALUE(s, '$.key2') as json_value, JSON_QUERY(s, '$.key2') as json_query
FROM t2;
json_text	$.key2	json_value	json_query
{"key1":123, "key2":{"key3":"value3"}}	$.key2	NULL	{"key3":"value3"}
{"key1":123, "key3":[1,2,3]}	$.key2	NULL	NULL
{"key1":123, "key2":"[1]"}	$.key2	[1]	NULL
SELECT s as json_text, '$.key3' , JSON_VALUE(s, '$.key3') as json_value, JSON_QUERY(s, '$.key3') as json_query
FROM t2;
json_text	$.key3	json_value	json_query
{"key1":123, "key2":{"key3":"value3"}}	$.key3	NULL	NULL
{"key1":123, "key3":[1,2,3]}	$.key3	NULL	[1,2,3]
{"key1":123, "key2":"[1]"}	$.key3	NULL	NULL
DROP TABLE t2;
DROP TABLE t1;
CREATE TABLE zu (hu TEXT) ENGINE = COLUMNSTORE;
INSERT INTO zu(hu) VALUES ('{}'), (NULL), ('{ "": "huh", "10001" : "10001", "10002" : "10001", "10003" : "10001", "10004" : "10001", "10005" : "10001", "10006" : "10001", "10007" : "10001", "10008" : "10001", "10009" : "10001", "10010" : "10001", "10011" : "10001", "10012" : "10001", "10013" : "10001", "10014" : "10001", "10015" : "10001", "10016" : "10001", "10017" : "10001", "10018" : "10001", "10019" : "10001", "10020" : "10001", "buga" : ""}');
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
INSERT INTO zu(hu) SELECT hu FROM zu;
SELECT COUNT(*) FROM zu;
COUNT(*)
3145728
SELECT COUNT(*) FROM zu wHERE
JSON_QUERY(hu, '$.buga') IS NOT NULL
AND     JSON_QUERY(hu, '$.zhuga') IS NULL;
COUNT(*)
0
DROP DATABASE json_value_db;