MYSQL5.8----M4-5

mysql> CREATE TABLE joson( id INT AUTO_INCREMENT PRIMARY KEY, context JSON NOT NULL)//
Query OK, 0 rows affected (0.05 sec)
mysql> DESC joson;
+---------+---------+------+-----+---------+----------------+
| Field   | Type    | Null | Key | Default | Extra          |
+---------+---------+------+-----+---------+----------------+
| id      | int(11) | NO   | PRI | NULL    | auto_increment |
| context | json    | NO   |     | NULL    |                |
+---------+---------+------+-----+---------+----------------+
2 rows in set (0.00 sec)

mysql> SELECT JSON_ARRAY(1,2,3,4,"AA","BB");
+-------------------------------+
| JSON_ARRAY(1,2,3,4,"AA","BB") |
+-------------------------------+
| [1, 2, 3, 4, "AA", "BB"]      |
+-------------------------------+
1 row in set (0.13 sec)

mysql> SELECT JSON_OBJECT(1,2,3,4,"AA","BB")
    -> ;
+--------------------------------+
| JSON_OBJECT(1,2,3,4,"AA","BB") |
+--------------------------------+
| {"1": 2, "3": 4, "AA": "BB"}   |
+--------------------------------+
1 row in set (0.00 sec)
mysql> SET @data = JSON_OBJECT(1,2,3,4,"AA","BB");
Query OK, 0 rows affected (0.00 sec)

mysql> SELECT  JSON_PRETTY(@data);
+--------------------------------------+
| JSON_PRETTY(@data)                   |
+--------------------------------------+
| {
  "1": 2,
  "3": 4,
  "AA": "BB"
} |
+--------------------------------------+
1 row in set (0.08 sec)

mysql>  DESC joson;
+---------+---------+------+-----+---------+----------------+
| Field   | Type    | Null | Key | Default | Extra          |
+---------+---------+------+-----+---------+----------------+
| id      | int(11) | NO   | PRI | NULL    | auto_increment |
| context | json    | NO   |     | NULL    |                |
+---------+---------+------+-----+---------+----------------+
2 rows in set (0.00 sec)

mysql> INSERT INTO joson(context) VALUES(@data);
Query OK, 1 row affected (0.00 sec)

mysql> SELECT * FROM joson;
+----+------------------------------+
| id | context                      |
+----+------------------------------+
|  1 | {"1": 2, "3": 4, "AA": "BB"} |
+----+------------------------------+
1 row in set (0.00 sec)

mysql> SET @a = JSON_ARRAY(1,2,3,4);
Query OK, 0 rows affected (0.00 sec)

mysql> SELECT @a;
+--------------+
| @a           |
+--------------+
| [1, 2, 3, 4] |
+--------------+
1 row in set (0.00 sec)

mysql> SELECT JSON_ARRAY_INSERT(@a,"$[0]","quan");
+-------------------------------------+
| JSON_ARRAY_INSERT(@a,"$[0]","quan") |
+-------------------------------------+
| ["quan", 1, 2, 3, 4]                |
+-------------------------------------+
1 row in set (0.00 sec)

mysql> SELECT JSON_ARRAY_INSERT(@a,"$[3]","zhi");
+------------------------------------+
| JSON_ARRAY_INSERT(@a,"$[3]","zhi") |
+------------------------------------+
| [1, 2, 3, "zhi", 4]                |
+------------------------------------+
1 row in set (0.00 sec)
mysql> SET @a =  JSON_ARRAY_INSERT(@a,"$[0]","quan");
Query OK, 0 rows affected (0.00 sec)

mysql> SELECT @a;
+----------------------+
| @a                   |
+----------------------+
| ["quan", 1, 2, 3, 4] |
+----------------------+
1 row in set (0.00 sec)

mysql> SET @a =  JSON_ARRAY_INSERT(@a,"$[3]","zhi");
Query OK, 0 rows affected (0.00 sec)

mysql> SELECT @a;
+-----------------------------+
| @a                          |
+-----------------------------+
| ["quan", 1, 2, "zhi", 3, 4] |
+-----------------------------+
1 row in set (0.00 sec)

mysql> SET @b = JSON_OBJECT("id",11,"name","quanzhiqiang");
Query OK, 0 rows affected (0.00 sec)

mysql> SELECT @b;
+------------------------------------+
| @b                                 |
+------------------------------------+
| {"id": 11, "name": "quanzhiqiang"} |
+------------------------------------+
1 row in set (0.00 sec)
mysql> SELECT JSON_INSERT(@b,"$.age",90);
+-----------------------------------------------+
| JSON_INSERT(@b,"$.age",90)                    |
+-----------------------------------------------+
| {"id": 11, "age": 90, "name": "quanzhiqiang"} |
+-----------------------------------------------+
1 row in set (0.00 sec)

mysql> SELECT @a;
+-----------------------------+
| @a                          |
+-----------------------------+
| ["quan", 1, 2, "zhi", 3, 4] |
+-----------------------------+
1 row in set (0.00 sec)

mysql> SELECT @b;
+------------------------------------+
| @b                                 |
+------------------------------------+
| {"id": 11, "name": "quanzhiqiang"} |
+------------------------------------+
1 row in set (0.00 sec)
mysql> SELECT JSON_ARRAY_APPEND(@a,"$[0]","111","$[4]","4444");
+--------------------------------------------------+
| JSON_ARRAY_APPEND(@a,"$[0]","111","$[4]","4444") |
+--------------------------------------------------+
| [["quan", "111"], 1, 2, "zhi", [3, "4444"], 4]   |
+--------------------------------------------------+
1 row in set (0.00 sec)

mysql> SELECT JSON_ARRAY_APPEND(@b,"$.name","namename");
+--------------------------------------------------+
| JSON_ARRAY_APPEND(@b,"$.name","namename")        |
+--------------------------------------------------+
| {"id": 11, "name": ["quanzhiqiang", "namename"]} |
+--------------------------------------------------+
1 row in set (0.00 sec)

mysql> SELECT @b;
+------------------------------------+
| @b                                 |
+------------------------------------+
| {"id": 11, "name": "quanzhiqiang"} |
+------------------------------------+
1 row in set (0.00 sec)
mysql> SELECT JSON_SET(@b,"$.id",90,"$.age",99);
+-----------------------------------------------+
| JSON_SET(@b,"$.id",90,"$.age",99)             |
+-----------------------------------------------+
| {"id": 90, "age": 99, "name": "quanzhiqiang"} |
+-----------------------------------------------+
1 row in set (0.00 sec)

mysql> SELECT @b;
+------------------------------------+
| @b                                 |
+------------------------------------+
| {"id": 11, "name": "quanzhiqiang"} |
+------------------------------------+
1 row in set (0.00 sec)

mysql> SELECT JSON_REPLACE(@b,"$.id",90,"$.age",99);
+---------------------------------------+
| JSON_REPLACE(@b,"$.id",90,"$.age",99) |
+---------------------------------------+
| {"id": 90, "name": "quanzhiqiang"}    |
+---------------------------------------+
1 row in set (0.00 sec)

mysql> SELECT * FROM joson;
+----+------------------------------+
| id | context                      |
+----+------------------------------+
|  1 | {"1": 2, "3": 4, "AA": "BB"} |
+----+------------------------------+
1 row in set (0.00 sec)

mysql> SELECT context FROM joson
    -> ;
+------------------------------+
| context                      |
+------------------------------+
| {"1": 2, "3": 4, "AA": "BB"} |
+------------------------------+
1 row in set (0.00 sec)
mysql> UPDATE joson SET context = JSON_SET(context,"$.sex",1,"$.homw",2);
Query OK, 1 row affected (0.11 sec)
Rows matched: 1  Changed: 1  Warnings: 0

mysql> SELECT * FROM joson;
+----+---------------------------------------------------+
| id | context                                           |
+----+---------------------------------------------------+
|  1 | {"1": 2, "3": 4, "AA": "BB", "sex": 1, "homw": 2} |
+----+---------------------------------------------------+
1 row in set (0.00 sec)

mysql> SELECT @c;
+-----------------------+
| @c                    |
+-----------------------+
| {"sex": 1, "homw": 2} |
+-----------------------+
1 row in set (0.00 sec)

mysql> SELECT JSON_REMOVE(@c,"$.sex");
+-------------------------+
| JSON_REMOVE(@c,"$.sex") |
+-------------------------+
| {"homw": 2}             |
+-------------------------+
1 row in set (0.00 sec)

mysql> SELECT * FROM joson;
+----+---------------------------------------------------+
| id | context                                           |
+----+---------------------------------------------------+
|  1 | {"1": 2, "3": 4, "AA": "BB", "sex": 1, "homw": 2} |
+----+---------------------------------------------------+
1 row in set (0.00 sec)

mysql> UPDATE joson SET context = JSON_REMOVE(context,"$.sex");
Query OK, 1 row affected (0.00 sec)
Rows matched: 1  Changed: 1  Warnings: 0

mysql> SELECT * FROM joson;
+----+-----------------------------------------+
| id | context                                 |
+----+-----------------------------------------+
|  1 | {"1": 2, "3": 4, "AA": "BB", "homw": 2} |
+----+-----------------------------------------+
1 row in set (0.00 sec)

mysql> SELECT JSON_EXTRACT(context,"$.homw") FROM joson;
+--------------------------------+
| JSON_EXTRACT(context,"$.homw") |
+--------------------------------+
| 2                              |
+--------------------------------+
1 row in set (0.00 sec)

mysql> SELECT context->"$.homw" FROM joson;
+-------------------+
| context->"$.homw" |
+-------------------+
| 2                 |
+-------------------+
1 row in set (0.00 sec)

mysql> SELECT @a;
+-----------------------------+
| @a                          |
+-----------------------------+
| ["quan", 1, 2, "zhi", 3, 4] |
+-----------------------------+
1 row in set (0.00 sec)

mysql> SELECT JSON_LENGTH(@a);
+-----------------+
| JSON_LENGTH(@a) |
+-----------------+
|               6 |
+-----------------+
1 row in set (0.00 sec)

mysql> SELECT @b;
+------------------------------------+
| @b                                 |
+------------------------------------+
| {"id": 11, "name": "quanzhiqiang"} |
+------------------------------------+
1 row in set (0.00 sec)

mysql> SELECT JSON_LENGTH(@b);
+-----------------+
| JSON_LENGTH(@b) |
+-----------------+
|               2 |
+-----------------+
1 row in set (0.00 sec)

mysql> SELECT JSON_CONTAINS_PATH(@b,"one","$.id");
+-------------------------------------+
| JSON_CONTAINS_PATH(@b,"one","$.id") |
+-------------------------------------+
|                                   1 |
+-------------------------------------+
1 row in set (0.00 sec)

mysql> SELECT JSON_CONTAINS_PATH(@b,"one","$.idd");
+--------------------------------------+
| JSON_CONTAINS_PATH(@b,"one","$.idd") |
+--------------------------------------+
|                                    0 |
+--------------------------------------+
1 row in set (0.00 sec)

mysql> SELECT JSON_CONTAINS_PATH(@b,"one","$.id","$[11]");
+---------------------------------------------+
| JSON_CONTAINS_PATH(@b,"one","$.id","$[11]") |
+---------------------------------------------+
|                                           1 |
+---------------------------------------------+
1 row in set (0.00 sec)

mysql> SELECT @a;
+-----------------------------+
| @a                          |
+-----------------------------+
| ["quan", 1, 2, "zhi", 3, 4] |
+-----------------------------+
1 row in set (0.00 sec)
mysql> SELECT JSON_CONTAINS(@a,"1","$[1]");
+------------------------------+
| JSON_CONTAINS(@a,"1","$[1]") |
+------------------------------+
|                            1 |
+------------------------------+
1 row in set (0.00 sec)

mysql> SELECT @a;
+-----------------------------+
| @a                          |
+-----------------------------+
| ["quan", 1, 2, "zhi", 3, 4] |
+-----------------------------+
1 row in set (0.00 sec)
mysql> SELECT JSON_CONTAINS(@a,"1");
+-----------------------+
| JSON_CONTAINS(@a,"1") |
+-----------------------+
|                     1 |
+-----------------------+
1 row in set (0.00 sec)
mysql> SELECT JSON_CONTAINS(@a,"3");
+-----------------------+
| JSON_CONTAINS(@a,"3") |
+-----------------------+
|                     1 |
+-----------------------+
1 row in set (0.00 sec)