diff --git a/test/distributed/cases/tenxcloud_xx/json_test.result b/test/distributed/cases/tenxcloud_xx/json_test.result
new file mode 100644
index 0000000000000..4d0bc09958eab
--- /dev/null
+++ b/test/distributed/cases/tenxcloud_xx/json_test.result
@@ -0,0 +1,302 @@
+CREATE DATABASE IF NOT EXISTS moc4504;
+USE moc4504;
+DROP TABLE IF EXISTS users;
+CREATE TABLE users (
+id INT AUTO_INCREMENT PRIMARY KEY,
+info JSON
+);
+INSERT INTO users (info) VALUES ('{"name": "John"}');
+SELECT * FROM users;
+id    info
+1    {"name": "John"}
+UPDATE users SET info = JSON_SET(info, '$.age', 30);
+SELECT * FROM users;
+id    info
+1    {"age": 30, "name": "John"}
+UPDATE users SET info = JSON_SET(info, '$.age', 31) WHERE id = 1;
+SELECT * FROM users;
+id    info
+1    {"age": 31, "name": "John"}
+INSERT INTO users (info) VALUES ('{"person": {"name": "Alice", "address": {"city": "New York"}}}');
+SELECT * FROM users;
+id    info
+1    {"age": 31, "name": "John"}
+2    {"person": {"address": {"city": "New York"}, "name": "Alice"}}
+UPDATE users SET info = JSON_SET(info, '$.person.address.city', 'Los Angeles') WHERE id = 2;
+SELECT * FROM users;
+id    info
+1    {"age": 31, "name": "John"}
+2    {"person": {"address": {"city": "Los Angeles"}, "name": "Alice"}}
+INSERT INTO users (info) VALUES ('{"users": ["Cherry", "Davis", "Emma", "Francis"]}');
+SELECT * FROM users;
+id    info
+1    {"age": 31, "name": "John"}
+2    {"person": {"address": {"city": "Los Angeles"}, "name": "Alice"}}
+3    {"users": ["Cherry", "Davis", "Emma", "Francis"]}
+UPDATE users SET info = JSON_SET(info, '$.users[1]', 'Devin');
+SELECT * FROM users;
+id    info
+1    {"age": 31, "name": "John"}
+2    {"person": {"address": {"city": "Los Angeles"}, "name": "Alice"}}
+3    {"users": ["Cherry", "Devin", "Emma", "Francis"]}
+INSERT INTO users VALUES (5, '{"name":"Eric","age":35,"hobby":"reading"}');
+SELECT * FROM users;
+id    info
+1    {"age": 31, "name": "John"}
+2    {"person": {"address": {"city": "Los Angeles"}, "name": "Alice"}}
+3    {"users": ["Cherry", "Devin", "Emma", "Francis"]}
+5    {"age": 35, "hobby": "reading", "name": "Eric"}
+UPDATE users SET info = JSON_SET(info, '$.name', 'Bob', '$.hobby', 'writing') WHERE id = 5;
+SELECT * FROM users;
+id    info
+1    {"age": 31, "name": "John"}
+2    {"person": {"address": {"city": "Los Angeles"}, "name": "Alice"}}
+3    {"users": ["Cherry", "Devin", "Emma", "Francis"]}
+5    {"age": 35, "hobby": "writing", "name": "Bob"}
+SELECT JSON_SET(a.info, '$.age', 18) as user_id_1 FROM users as a WHERE a.id = 1;
+user_id_1
+{"age": 18, "name": "John"}
+SELECT JSON_SET(a.info, '$.gender', 'Male') as user_id_1 FROM users as a WHERE a.id = 1;
+user_id_1
+{"age": 31, "gender": "Male", "name": "John"}
+SET @json = '{"name":"Allen","age":14}';
+SELECT @json, JSON_SET(@json, '$.gender', 'Male');
+@json    JSON_SET(@json, $.gender, Male)
+{"name":"Allen","age":14}    {"age": 14, "gender": "Male", "name": "Allen"}
+SELECT @json, JSON_SET(@json, '$.age', 18);
+@json    JSON_SET(@json, $.age, 18)
+{"name":"Allen","age":14}    {"age": 18, "name": "Allen"}
+SET @json = '{"user":{"name":"Eric","age":20}}';
+SELECT @json, JSON_SET(@json, '$.user.age', 22);
+@json    JSON_SET(@json, $.user.age, 22)
+{"user":{"name":"Eric","age":20}}    {"user": {"age": 22, "name": "Eric"}}
+SET @json = '{"fruits":["apple","banana","cherry"]}';
+SELECT @json, JSON_SET(@json, '$.fruits[1]', 'pear');
+@json    JSON_SET(@json, $.fruits[1], pear)
+{"fruits":["apple","banana","cherry"]}    {"fruits": ["apple", "pear", "cherry"]}
+SET @json = '{"numbers":[1,2,3]}';
+SELECT @json, JSON_SET(@json, '$.numbers[3]', 4);
+@json    JSON_SET(@json, $.numbers[3], 4)
+{"numbers":[1,2,3]}    {"numbers": [1, 2, 3, 4]}
+SET @json = '{"name":"Henry","age":28,"city":"Beijing"}';
+SELECT @json, JSON_SET(@json, '$.age', 30, '$.city', 'Shanghai');
+@json    JSON_SET(@json, $.age, 30, $.city, Shanghai)
+{"name":"Henry","age":28,"city":"Beijing"}    {"age": 30, "city": "Shanghai", "name": "Henry"}
+SET @json = '{"a": 1,"b": [2, 3]}';
+SELECT @json, JSON_SET(@json, '$.a', 10);
+@json    JSON_SET(@json, $.a, 10)
+{"a": 1,"b": [2, 3]}    {"a": 10, "b": [2, 3]}
+SELECT @json, JSON_SET(@json, '$.c', '[true, false]');
+@json    JSON_SET(@json, $.c, [true, false])
+{"a": 1,"b": [2, 3]}    {"a": 1, "b": [2, 3], "c": [true, false]}
+SELECT @json, JSON_SET(@json, '$.b[2]', 4) ;
+@json    JSON_SET(@json, $.b[2], 4)
+{"a": 1,"b": [2, 3]}    {"a": 1, "b": [2, 3, 4]}
+DROP TABLE IF EXISTS products;
+CREATE TABLE products (
+id INT AUTO_INCREMENT PRIMARY KEY,
+details JSON
+);
+INSERT INTO products (details) VALUES ('{"name": "Laptop"}');
+SELECT * FROM products;
+id    details
+1    {"name": "Laptop"}
+UPDATE products SET details = JSON_INSERT(details, '$.price', 999.99);
+SELECT * FROM products;
+id    details
+1    {"name": "Laptop", "price": "999.99"}
+INSERT INTO products (details) VALUES ('{"product_info": {"brand": "ABC", "features": []}}');
+SELECT * FROM products;
+id    details
+1    {"name": "Laptop", "price": "999.99"}
+2    {"product_info": {"brand": "ABC", "features": []}}
+UPDATE products SET details = JSON_INSERT(details, '$.product_info.features[0]', 'High - resolution display');
+SELECT * FROM products;
+id    details
+1    {"name": "Laptop", "price": "999.99"}
+2    {"product_info": {"brand": "ABC", "features": ["High - resolution display"]}}
+DROP TABLE IF EXISTS customers;
+CREATE TABLE customers (
+id INT AUTO_INCREMENT PRIMARY KEY,
+profile JSON
+);
+INSERT INTO customers (profile) VALUES ('{"name": "Customer1"}');
+SELECT * FROM customers;
+id    profile
+1    {"name": "Customer1"}
+UPDATE customers SET profile = JSON_INSERT(profile, '$.age', 30, '$.phone', '123 - 456 - 7890');
+SELECT * FROM customers;
+id    profile
+1    {"age": 30, "name": "Customer1", "phone": "123 - 456 - 7890"}
+DROP TABLE IF EXISTS student;
+CREATE TABLE student (
+id INT AUTO_INCREMENT PRIMARY KEY,
+json_data JSON
+);
+INSERT INTO student (json_data) VALUES ('{"name": "John"}');
+SELECT * FROM student;
+id    json_data
+1    {"name": "John"}
+UPDATE student
+SET json_data = JSON_INSERT(json_data, '$.age', 30)
+WHERE id = 1;
+SELECT json_data FROM student WHERE id = 1;
+json_data
+{"age": 30, "name": "John"}
+INSERT INTO student (json_data) VALUES ('{"person": {"name": "Alice"}}');
+SELECT * FROM student;
+id    json_data
+1    {"age": 30, "name": "John"}
+2    {"person": {"name": "Alice"}}
+UPDATE student
+SET json_data = JSON_INSERT(json_data, '$.person.age', 25)
+WHERE id = 2;
+SELECT json_data FROM student WHERE id = 2;
+json_data
+{"person": {"age": 25, "name": "Alice"}}
+INSERT INTO student (json_data) VALUES ('{"book": {"title": "Book1"}}');
+SELECT * FROM student;
+id    json_data
+1    {"age": 30, "name": "John"}
+2    {"person": {"age": 25, "name": "Alice"}}
+3    {"book": {"title": "Book1"}}
+UPDATE student
+SET json_data = JSON_INSERT(json_data, '$.book.author', 'Author1', '$.book.price', 19.99)
+WHERE id = 3;
+SELECT json_data FROM student WHERE id = 3;
+json_data
+{"book": {"author": "Author1", "price": "19.99", "title": "Book1"}}
+INSERT INTO student (json_data) VALUES ('{"fruits": ["apple", "banana"]}');
+SELECT json_data FROM student;
+json_data
+{"age": 30, "name": "John"}
+{"person": {"age": 25, "name": "Alice"}}
+{"book": {"author": "Author1", "price": "19.99", "title": "Book1"}}
+{"fruits": ["apple", "banana"]}
+UPDATE student
+SET json_data = JSON_INSERT(json_data, '$.fruits[2]', 'cherry')
+WHERE id = 4;
+SELECT json_data FROM student WHERE id = 4;
+json_data
+{"fruits": ["apple", "banana", "cherry"]}
+INSERT INTO student (json_data) VALUES ('{"numbers": [1, 3]}');
+SELECT * FROM student;
+id    json_data
+1    {"age": 30, "name": "John"}
+2    {"person": {"age": 25, "name": "Alice"}}
+3    {"book": {"author": "Author1", "price": "19.99", "title": "Book1"}}
+4    {"fruits": ["apple", "banana", "cherry"]}
+5    {"numbers": [1, 3]}
+UPDATE student
+SET json_data = JSON_INSERT(json_data, '$.numbers[2]', 2)
+WHERE id = 5;
+SELECT json_data FROM student WHERE id = 5;
+json_data
+{"numbers": [1, 3, 2]}
+INSERT INTO student (json_data) VALUES ('{"store": {"products": [{"name": "product1", "price": 10}]}}');
+SELECT * FROM student;
+id    json_data
+1    {"age": 30, "name": "John"}
+2    {"person": {"age": 25, "name": "Alice"}}
+3    {"book": {"author": "Author1", "price": "19.99", "title": "Book1"}}
+4    {"fruits": ["apple", "banana", "cherry"]}
+5    {"numbers": [1, 3, 2]}
+6    {"store": {"products": [{"name": "product1", "price": 10}]}}
+UPDATE student
+SET json_data = JSON_INSERT(json_data, '$.store.products[0].quantity', 5)
+WHERE id = 6;
+SELECT json_data FROM student WHERE id = 6;
+json_data
+{"store": {"products": [{"name": "product1", "price": 10, "quantity": 5}]}}
+INSERT INTO student (json_data) VALUES ('{"user": {"name": "User1"}}');
+SELECT * FROM student;
+id    json_data
+1    {"age": 30, "name": "John"}
+2    {"person": {"age": 25, "name": "Alice"}}
+3    {"book": {"author": "Author1", "price": "19.99", "title": "Book1"}}
+4    {"fruits": ["apple", "banana", "cherry"]}
+5    {"numbers": [1, 3, 2]}
+6    {"store": {"products": [{"name": "product1", "price": 10, "quantity": 5}]}}
+7    {"user": {"name": "User1"}}
+UPDATE student
+SET json_data = JSON_INSERT(json_data, '$.user.email', NULL)
+WHERE id = 7;
+SELECT json_data FROM student WHERE id = 7;
+json_data
+{"user": {"email": null, "name": "User1"}}
+INSERT INTO student (json_data) VALUES ('{"category": "Electronics"}');
+SELECT * FROM student;
+id    json_data
+1    {"age": 30, "name": "John"}
+2    {"person": {"age": 25, "name": "Alice"}}
+3    {"book": {"author": "Author1", "price": "19.99", "title": "Book1"}}
+4    {"fruits": ["apple", "banana", "cherry"]}
+5    {"numbers": [1, 3, 2]}
+6    {"store": {"products": [{"name": "product1", "price": 10, "quantity": 5}]}}
+7    {"user": {"email": null, "name": "User1"}}
+8    {"category": "Electronics"}
+UPDATE student
+SET json_data = JSON_INSERT(json_data, '$.product_details', '{"brand": "ABC", "model": "XYZ"}')
+WHERE id = 8;
+SELECT json_data FROM student WHERE id = 8;
+json_data
+{"category": "Electronics", "product_details": {"brand": "ABC", "model": "XYZ"}}
+DROP TABLE IF EXISTS employees;
+CREATE TABLE employees (
+id INT AUTO_INCREMENT PRIMARY KEY,
+user_info JSON
+);
+INSERT INTO employees (user_info) VALUES ('{"name": "John", "age": 30}');
+SELECT * FROM employees;
+id    user_info
+1    {"age": 30, "name": "John"}
+UPDATE employees SET user_info = JSON_REPLACE(user_info, '$.age', 31) WHERE id = 1;
+SELECT * FROM employees;
+id    user_info
+1    {"age": 31, "name": "John"}
+INSERT INTO employees (user_info) VALUES ('{"person": {"name": "Alice", "address": {"city": "New York"}}}');
+SELECT * FROM employees;
+id    user_info
+1    {"age": 31, "name": "John"}
+2    {"person": {"address": {"city": "New York"}, "name": "Alice"}}
+UPDATE employees SET user_info = JSON_REPLACE(user_info, '$.person.address.city', 'Los Angeles') WHERE id = 2;
+SELECT * FROM employees;
+id    user_info
+1    {"age": 31, "name": "John"}
+2    {"person": {"address": {"city": "Los Angeles"}, "name": "Alice"}}
+DROP TABLE IF EXISTS myproducts;
+CREATE TABLE myproducts (
+id INT AUTO_INCREMENT PRIMARY KEY,
+product_details JSON
+);
+INSERT INTO myproducts (product_details) VALUES ('{"size": "small", "color": "red", "weight": "light"}');
+SELECT * FROM myproducts;
+id    product_details
+1    {"color": "red", "size": "small", "weight": "light"}
+UPDATE myproducts SET product_details = JSON_REPLACE(product_details, '$.size', "medium", '$.color', "blue") WHERE id = 1;
+SELECT * FROM myproducts;
+id    product_details
+1    {"color": "blue", "size": "medium", "weight": "light"}
+DROP TABLE IF EXISTS inventory;
+CREATE TABLE inventory (
+id INT AUTO_INCREMENT PRIMARY KEY,
+stock_items JSON
+);
+INSERT INTO inventory (stock_items) VALUES ('{"items": ["apple", "banana"]}');
+SELECT * FROM inventory;
+id    stock_items
+1    {"items": ["apple", "banana"]}
+UPDATE inventory SET stock_items = JSON_REPLACE(stock_items, '$.items[1]', "cherry") WHERE id = 1;
+SELECT * FROM inventory;
+id    stock_items
+1    {"items": ["apple", "cherry"]}
+INSERT INTO inventory (stock_items) VALUES ('{"items": ["1", "3", "5"]}');
+SELECT * FROM inventory;
+id    stock_items
+1    {"items": ["apple", "cherry"]}
+2    {"items": ["1", "3", "5"]}
+UPDATE inventory SET stock_items = JSON_REPLACE(stock_items, '$.items[0]', "2", '$.items[2]', "4") WHERE id = 2;
+SELECT * FROM inventory;
+id    stock_items
+1    {"items": ["apple", "cherry"]}
+2    {"items": [2, "3", 4]}
diff --git a/test/distributed/cases/tenxcloud_xx/json_test.sql b/test/distributed/cases/tenxcloud_xx/json_test.sql
new file mode 100644
index 0000000000000..cb77df913af21
--- /dev/null
+++ b/test/distributed/cases/tenxcloud_xx/json_test.sql
@@ -0,0 +1,876 @@
+CREATE DATABASE IF NOT EXISTS moc4504;
+USE moc4504;
+
+-- #####################################################
+--                Part 1: json_set
+-- #####################################################
+
+-- test table
+DROP TABLE IF EXISTS users;
+CREATE TABLE users (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    info JSON
+);
+
+-- insert some simple data
+INSERT INTO users (info) VALUES ('{"name": "John"}');
+
+SELECT * FROM users;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM users;
+-- +----+------------------+
+-- | id | info             |
+-- +----+------------------+
+-- |  1 | {"name": "John"} |
+-- +----+------------------+
+-- 1 row in set (0.00 sec)
+
+-- tc_001
+-- insert new key:value
+UPDATE users SET info = JSON_SET(info, '$.age', 30);
+-- expected in mysql 8.0.31
+-- mysql> UPDATE users SET info = JSON_SET(info, '$.age', 30);
+-- Query OK, 1 row affected (0.01 sec)
+-- Rows matched: 1  Changed: 1  Warnings: 0
+
+SELECT * FROM users;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM users;
+-- +----+-----------------------------+
+-- | id | info                        |
+-- +----+-----------------------------+
+-- |  1 | {"age": 30, "name": "John"} |
+-- +----+-----------------------------+
+-- 1 row in set (0.00 sec)
+
+
+-- tc_002
+-- update existing key:value
+UPDATE users SET info = JSON_SET(info, '$.age', 31) WHERE id = 1;
+-- expected in mysql 8.0.31
+-- mysql> UPDATE users SET info = JSON_SET(info, '$.age', 31) WHERE id = 1;
+-- Query OK, 1 row affected (0.00 sec)
+-- Rows matched: 1  Changed: 1  Warnings: 0
+
+SELECT * FROM users;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM users;
+-- +----+-----------------------------+
+-- | id | info                        |
+-- +----+-----------------------------+
+-- |  1 | {"age": 31, "name": "John"} |
+-- +----+-----------------------------+
+-- 1 row in set (0.00 sec)
+
+
+-- insert more complex data
+INSERT INTO users (info) VALUES ('{"person": {"name": "Alice", "address": {"city": "New York"}}}');
+-- expected in mysql 8.0.31
+-- mysql> INSERT INTO users (info) VALUES ('{"person": {"name": "Alice", "address": {"city": "New York"}}}');
+-- Query OK, 1 row affected (0.01 sec)
+
+SELECT * FROM users;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM users;
+-- +----+----------------------------------------------------------------+
+-- | id | info                                                           |
+-- +----+----------------------------------------------------------------+
+-- |  1 | {"age": 31, "name": "John"}                                    |
+-- |  2 | {"person": {"name": "Alice", "address": {"city": "New York"}}} |
+-- +----+----------------------------------------------------------------+
+-- 2 rows in set (0.00 sec)
+
+-- tc_003: update address city from NY to LA where user id is 2
+UPDATE users SET info = JSON_SET(info, '$.person.address.city', 'Los Angeles') WHERE id = 2;
+-- expected in mysql 8.0.31
+-- mysql> UPDATE users SET info = JSON_SET(info, '$.person.address.city', 'Los Angeles') WHERE id = 2;
+-- Query OK, 1 row affected (0.01 sec)
+-- Rows matched: 1  Changed: 1  Warnings: 0
+
+SELECT * FROM users;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM users;
+-- +----+-------------------------------------------------------------------+
+-- | id | info                                                              |
+-- +----+-------------------------------------------------------------------+
+-- |  1 | {"age": 31, "name": "John"}                                       |
+-- |  2 | {"person": {"name": "Alice", "address": {"city": "Los Angeles"}}} |
+-- +----+-------------------------------------------------------------------+
+-- 2 rows in set (0.00 sec)
+
+-- insert array data
+INSERT INTO users (info) VALUES ('{"users": ["Cherry", "Davis", "Emma", "Francis"]}');
+-- expected in mysql 8.0.31
+-- mysql> INSERT INTO users (info) VALUES ('{"users": ["Cherry", "Davis", "Emma", "Francis"]}');
+-- Query OK, 1 row affected (0.00 sec)
+
+SELECT * FROM users;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM users;
+-- +----+-------------------------------------------------------------------+
+-- | id | info                                                              |
+-- +----+-------------------------------------------------------------------+
+-- |  1 | {"age": 31, "name": "John"}                                       |
+-- |  2 | {"person": {"name": "Alice", "address": {"city": "Los Angeles"}}} |
+-- |  3 | {"users": ["Cherry", "Davis", "Emma", "Francis"]}                 |
+-- +----+-------------------------------------------------------------------+
+-- 3 rows in set (0.01 sec)
+
+-- tc_004: update user name to Devin with index 1
+UPDATE users SET info = JSON_SET(info, '$.users[1]', 'Devin');
+-- expected in mysql 8.0.31
+-- mysql> UPDATE users SET info = JSON_SET(info, '$.users[1]', 'Devin');
+-- Query OK, 1 row affected (0.00 sec)
+-- Rows matched: 3  Changed: 1  Warnings: 0
+
+SELECT * FROM users;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM users;
+-- +----+-------------------------------------------------------------------+
+-- | id | info                                                              |
+-- +----+-------------------------------------------------------------------+
+-- |  1 | {"age": 31, "name": "John"}                                       |
+-- |  2 | {"person": {"name": "Alice", "address": {"city": "Los Angeles"}}} |
+-- |  3 | {"users": ["Cherry", "Devin", "Emma", "Francis"]}                 |
+-- +----+-------------------------------------------------------------------+
+-- 3 rows in set (0.00 sec)
+
+INSERT INTO users VALUES (5, '{"name":"Eric","age":35,"hobby":"reading"}');
+
+SELECT * FROM users;
+-- expected in mysql 8.0.31
+-- mysql> select * from users;
+-- +----+-------------------------------------------------------------------+
+-- | id | info                                                              |
+-- +----+-------------------------------------------------------------------+
+-- |  1 | {"age": 31, "name": "John"}                                       |
+-- |  2 | {"person": {"name": "Alice", "address": {"city": "Los Angeles"}}} |
+-- |  3 | {"users": ["Cherry", "Devin", "Emma", "Francis"]}                 |
+-- |  5 | {"age": 35, "name": "Eric", "hobby": "reading"}                   |
+-- +----+-------------------------------------------------------------------+
+-- 4 rows in set (0.00 sec)
+
+
+-- tc_005: update multiple keys
+UPDATE users SET info = JSON_SET(info, '$.name', 'Bob', '$.hobby', 'writing') WHERE id = 5;
+-- expected in mysql 8.0.31
+-- Query OK, 1 row affected (0.00 sec)
+-- Rows matched: 1  Changed: 1  Warnings: 0
+
+SELECT * FROM users;
+-- expected in mysql 8.0.31
+-- mysql> select * from users;
+-- +----+-------------------------------------------------------------------+
+-- | id | info                                                              |
+-- +----+-------------------------------------------------------------------+
+-- |  1 | {"age": 31, "name": "John"}                                       |
+-- |  2 | {"person": {"name": "Alice", "address": {"city": "Los Angeles"}}} |
+-- |  3 | {"users": ["Cherry", "Devin", "Emma", "Francis"]}                 |
+-- |  5 | {"age": 35, "name": "Bob", "hobby": "writing"}                    |
+-- +----+-------------------------------------------------------------------+
+-- 4 rows in set (0.00 sec)
+
+
+-- tc_006: if user's age exists, update existing
+SELECT JSON_SET(a.info, '$.age', 18) as user_id_1 FROM users as a WHERE a.id = 1;
+-- expected in mysql 8.0.31
+-- mysql> SELECT JSON_SET(a.info, '$.age', 18) as user_id_1 FROM users as a WHERE a.id = 1;
+-- +-----------------------------+
+-- | user_id_1                   |
+-- +-----------------------------+
+-- | {"age": 18, "name": "John"} |
+-- +-----------------------------+
+-- 1 row in set (0.00 sec)
+
+-- tc_007: if user's gender does not exists, insert new
+SELECT JSON_SET(a.info, '$.gender', 'Male') as user_id_1 FROM users as a WHERE a.id = 1;
+-- expected in mysql 8.0.31
+-- mysql> SELECT JSON_SET(a.info, '$.gender', 'Male') as user_id_1 FROM users as a WHERE a.id = 1;
+-- +-----------------------------------------------+
+-- | user_id_1                                     |
+-- +-----------------------------------------------+
+-- | {"age": 31, "name": "John", "gender": "Male"} |
+-- +-----------------------------------------------+
+-- 1 row in set (0.00 sec)
+
+
+SET @json = '{"name":"Allen","age":14}';
+-- expected in mysql 8.0.31
+-- mysql> SET @json = '{"name":"Allen","age":14}';
+-- Query OK, 0 rows affected (0.00 sec)
+
+-- tc_008: insert new key:value
+SELECT @json, JSON_SET(@json, '$.gender', 'Male');
+-- mysql> SELECT @json, JSON_SET(@json, '$.gender', 'Male');
+-- +----------------------------+-------------------------------------------------+
+-- | @json                      | JSON_SET(@json, '$.gender', 'Male')             |
+-- +----------------------------+-------------------------------------------------+
+-- | {"name":"Allen","age":14}   | {"age": 14, "name": "Allen", "gender": "Male"}   |
+-- +----------------------------+-------------------------------------------------+
+-- 1 row in set (0.00 sec)
+
+-- tc_009: update existing key:value
+SELECT @json, JSON_SET(@json, '$.age', 18);
+-- expected in mysql 8.0.31
+-- mysql> SELECT @json, JSON_SET(@json, '$.age', 18);
+-- +----------------------------+-------------------------------+
+-- | @json                      | JSON_SET(@json, '$.age', 18)  |
+-- +----------------------------+-------------------------------+
+-- | {"name":"Allen","age":14}   | {"age": 18, "name": "Allen"}   |
+-- +----------------------------+-------------------------------+
+-- 1 row in set (0.00 sec)
+
+-- tc_010: complex json
+SET @json = '{"user":{"name":"Eric","age":20}}';
+SELECT @json, JSON_SET(@json, '$.user.age', 22);
+-- expected in mysql 8.0.31
+-- mysql> SELECT @json, JSON_SET(@json, '$.user.age', 22);
+-- +-------------------------------------+-----------------------------------------+
+-- | @json                               | JSON_SET(@json, '$.user.age', 22)       |
+-- +-------------------------------------+-----------------------------------------+
+-- | {"user":{"name":"Eric","age":20}}   | {"user": {"age": 22, "name": "Eric"}}   |
+-- +-------------------------------------+-----------------------------------------+
+-- 1 row in set (0.00 sec)
+
+-- tc_011: array update existing
+SET @json = '{"fruits":["apple","banana","cherry"]}';
+SELECT @json, JSON_SET(@json, '$.fruits[1]', 'pear');
+-- expected in mysql 8.0.31
+-- mysql> SELECT @json, JSON_SET(@json, '$.fruits[1]', 'pear');
+-- +----------------------------------------+-----------------------------------------+
+-- | @json                                  | JSON_SET(@json, '$.fruits[1]', 'pear')  |
+-- +----------------------------------------+-----------------------------------------+
+-- | {"fruits":["apple","banana","cherry"]} | {"fruits": ["apple", "pear", "cherry"]} |
+-- +----------------------------------------+-----------------------------------------+
+-- 1 row in set (0.00 sec)
+
+-- tc_012: array insert new
+SET @json = '{"numbers":[1,2,3]}';
+SELECT @json, JSON_SET(@json, '$.numbers[3]', 4);
+-- expected in mysql 8.0.31
+-- mysql> SELECT @json, JSON_SET(@json, '$.numbers[3]', 4);
+-- +---------------------+------------------------------------+
+-- | @json               | JSON_SET(@json, '$.numbers[3]', 4) |
+-- +---------------------+------------------------------------+
+-- | {"numbers":[1,2,3]} | {"numbers": [1, 2, 3, 4]}          |
+-- +---------------------+------------------------------------+
+-- 1 row in set (0.00 sec)
+
+-- tc_013: update multiple keys
+SET @json = '{"name":"Henry","age":28,"city":"Beijing"}';
+SELECT @json, JSON_SET(@json, '$.age', 30, '$.city', 'Shanghai');
+-- expected in mysql 8.0.31
+-- mysql> SELECT @json, JSON_SET(@json, '$.age', 30, '$.city', 'Shanghai');
+-- +---------------------------------------------+----------------------------------------------------+
+-- | @json                                       | JSON_SET(@json, '$.age', 30, '$.city', 'Shanghai') |
+-- +---------------------------------------------+----------------------------------------------------+
+-- | {"name":"Henry","age":28,"city":"Beijing"}   | {"age": 30, "city": "Shanghai", "name": "Henry"}    |
+-- +---------------------------------------------+----------------------------------------------------+
+-- 1 row in set (0.00 sec)
+
+-- tc_014
+SET @json = '{"a": 1,"b": [2, 3]}';
+SELECT @json, JSON_SET(@json, '$.a', 10); 
+-- expected in mysql 8.0.31
+-- mysql> SELECT @json,  JSON_SET(@json, '$.a', 10); 
+-- +----------------------+----------------------------+
+-- | @json                | JSON_SET(@json, '$.a', 10) |
+-- +----------------------+----------------------------+
+-- | {"a": 1,"b": [2, 3]} | {"a": 10, "b": [2, 3]}     |
+-- +----------------------+----------------------------+
+-- 1 row in set (0.00 sec)
+
+-- tc_015
+SELECT @json, JSON_SET(@json, '$.c', '[true, false]');
+-- expected in mysql 8.0.31
+-- mysql> SELECT @json, JSON_SET(@json, '$.c', '[true, false]');
+-- +----------------------+---------------------------------------------+
+-- | @json                | JSON_SET(@json, '$.c', '[true, false]')     |
+-- +----------------------+---------------------------------------------+
+-- | {"a": 1,"b": [2, 3]} | {"a": 1, "b": [2, 3], "c": "[true, false]"} |
+-- +----------------------+---------------------------------------------+
+-- 1 row in set (0.00 sec)
+
+-- tc_016
+SELECT @json, JSON_SET(@json, '$.b[2]', 4) ;
+-- expected in mysql 8.0.31
+-- mysql> SELECT @json, JSON_SET(@json, '$.b[2]', 4) ;
+-- +----------------------+------------------------------+
+-- | @json                | JSON_SET(@json, '$.b[2]', 4) |
+-- +----------------------+------------------------------+
+-- | {"a": 1,"b": [2, 3]} | {"a": 1, "b": [2, 3, 4]}     |
+-- +----------------------+------------------------------+
+-- 1 row in set (0.00 sec)
+
+-- #####################################################
+--                Part 2: json_insert
+-- #####################################################
+
+DROP TABLE IF EXISTS products;
+CREATE TABLE products (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    details JSON
+);
+
+INSERT INTO products (details) VALUES ('{"name": "Laptop"}');
+
+SELECT * FROM products;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM products;
+-- +----+--------------------+
+-- | id | details            |
+-- +----+--------------------+
+-- |  1 | {"name": "Laptop"} |
+-- +----+--------------------+
+-- 1 row in set (0.00 sec)
+
+-- tc_001: insert new key
+UPDATE products SET details = JSON_INSERT(details, '$.price', 999.99);
+-- expected in mysql 8.0.31
+-- mysql> UPDATE products SET details = JSON_INSERT(details, '$.price', 999.99);
+-- Query OK, 1 row affected (0.01 sec)
+-- Rows matched: 1  Changed: 1  Warnings: 0
+
+SELECT * FROM products;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM products;
+-- +----+-------------------------------------+
+-- | id | details                             |
+-- +----+-------------------------------------+
+-- |  1 | {"name": "Laptop", "price": 999.99} |
+-- +----+-------------------------------------+
+-- 1 row in set (0.00 sec)
+
+INSERT INTO products (details) VALUES ('{"product_info": {"brand": "ABC", "features": []}}');
+-- expected in mysql 8.0.31
+-- mysql> INSERT INTO products (details) VALUES ('{"product_info": {"brand": "ABC", "features": []}}');
+-- Query OK, 1 row affected (0.01 sec)
+
+SELECT * FROM products;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM products;
+-- +----+----------------------------------------------------+
+-- | id | details                                            |
+-- +----+----------------------------------------------------+
+-- |  1 | {"name": "Laptop", "price": 999.99}                |
+-- |  2 | {"product_info": {"brand": "ABC", "features": []}} |
+-- +----+----------------------------------------------------+
+-- 2 rows in set (0.00 sec)
+
+-- tc_002: insert feature
+UPDATE products SET details = JSON_INSERT(details, '$.product_info.features[0]', 'High - resolution display');
+-- expected in mysql 8.0.31
+-- UPDATE products SET details = JSON_INSERT(details, '$.product_info.features[0]', 'High - resolution display');
+-- mysql> UPDATE products SET details = JSON_INSERT(details, '$.product_info.features[0]', 'High - resolution display');
+-- Query OK, 1 row affected (0.01 sec)
+-- Rows matched: 2  Changed: 1  Warnings: 0
+
+SELECT * FROM products;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM products;
+-- +----+-------------------------------------------------------------------------------+
+-- | id | details                                                                       |
+-- +----+-------------------------------------------------------------------------------+
+-- |  1 | {"name": "Laptop", "price": 999.99}                                           |
+-- |  2 | {"product_info": {"brand": "ABC", "features": ["High - resolution display"]}} |
+-- +----+-------------------------------------------------------------------------------+
+-- 2 rows in set (0.00 sec)
+
+
+DROP TABLE IF EXISTS customers;
+CREATE TABLE customers (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    profile JSON
+);
+
+INSERT INTO customers (profile) VALUES ('{"name": "Customer1"}');
+
+SELECT * FROM customers;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM customers;
+-- +----+-----------------------+
+-- | id | profile               |
+-- +----+-----------------------+
+-- |  1 | {"name": "Customer1"} |
+-- +----+-----------------------+
+-- 1 row in set (0.00 sec)
+
+-- tc_003: insert complex data
+UPDATE customers SET profile = JSON_INSERT(profile, '$.age', 30, '$.phone', '123 - 456 - 7890');
+-- expected in mysql 8.0.31
+-- mysql> UPDATE customers SET profile = JSON_INSERT(profile, '$.age', 30, '$.phone', '123 - 456 - 7890');
+-- Query OK, 1 row affected (0.00 sec)
+-- Rows matched: 1  Changed: 1  Warnings: 0
+
+
+SELECT * FROM customers;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM customers;
+-- +----+---------------------------------------------------------------+
+-- | id | profile                                                       |
+-- +----+---------------------------------------------------------------+
+-- |  1 | {"age": 30, "name": "Customer1", "phone": "123 - 456 - 7890"} |
+-- +----+---------------------------------------------------------------+
+-- 1 row in set (0.00 sec)
+
+DROP TABLE IF EXISTS student;
+CREATE TABLE student (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    json_data JSON
+);
+
+INSERT INTO student (json_data) VALUES ('{"name": "John"}');
+
+SELECT * FROM student;
+-- expected in mysql 8.0.31
+-- +----+------------------+
+-- | id | json_data        |
+-- +----+------------------+
+-- |  1 | {"name": "John"} |
+-- +----+------------------+
+-- 1 row in set (0.01 sec)
+
+-- tc_004: insert new key:value 
+UPDATE student 
+SET json_data = JSON_INSERT(json_data, '$.age', 30)
+WHERE id = 1;
+-- expected in mysql 8.0.31
+-- mysql> UPDATE student 
+--     -> SET json_data = JSON_INSERT(json_data, '$.age', 30)
+--     -> WHERE id = 1;
+-- Query OK, 1 row affected (0.01 sec)
+-- Rows matched: 1  Changed: 1  Warnings: 0
+
+SELECT json_data FROM student WHERE id = 1;
+-- expected in mysql 8.0.31
+-- mysql> SELECT json_data FROM student WHERE id = 1;
+-- +-----------------------------+
+-- | json_data                   |
+-- +-----------------------------+
+-- | {"age": 30, "name": "John"} |
+-- +-----------------------------+
+-- 1 row in set (0.00 sec)
+
+INSERT INTO student (json_data) VALUES ('{"person": {"name": "Alice"}}');
+
+SELECT * FROM student;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM student;
+-- +----+-------------------------------+
+-- | id | json_data                     |
+-- +----+-------------------------------+
+-- |  1 | {"age": 30, "name": "John"}   |
+-- |  2 | {"person": {"name": "Alice"}} |
+-- +----+-------------------------------+
+-- 2 rows in set (0.00 sec)
+
+-- tc_002: update complext data
+UPDATE student 
+SET json_data = JSON_INSERT(json_data, '$.person.age', 25)
+WHERE id = 2;
+-- expected in mysql 8.0.31
+-- Query OK, 1 row affected (0.01 sec)
+-- Rows matched: 1  Changed: 1  Warnings: 0
+
+SELECT json_data FROM student WHERE id = 2;
+-- expected in mysql 8.0.31
+-- mysql> SELECT json_data FROM student WHERE id = 2;
+-- +------------------------------------------+
+-- | json_data                                |
+-- +------------------------------------------+
+-- | {"person": {"age": 25, "name": "Alice"}} |
+-- +------------------------------------------+
+-- 1 row in set (0.00 sec)
+
+INSERT INTO student (json_data) VALUES ('{"book": {"title": "Book1"}}');
+
+SELECT * FROM student;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM student;
+-- +----+------------------------------------------+
+-- | id | json_data                                |
+-- +----+------------------------------------------+
+-- |  1 | {"age": 30, "name": "John"}              |
+-- |  2 | {"person": {"age": 25, "name": "Alice"}} |
+-- |  3 | {"book": {"title": "Book1"}}             |
+-- +----+------------------------------------------+
+-- 3 rows in set (0.00 sec)
+
+-- tc_003: insert multiple keys:values
+UPDATE student 
+SET json_data = JSON_INSERT(json_data, '$.book.author', 'Author1', '$.book.price', 19.99)
+WHERE id = 3;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM student;
+-- Query OK, 1 row affected (0.00 sec)
+-- Rows matched: 1  Changed: 1  Warnings: 0
+
+SELECT json_data FROM student WHERE id = 3;
+-- expected in mysql 8.0.31
+-- mysql> SELECT json_data FROM student WHERE id = 3;
+-- +-------------------------------------------------------------------+
+-- | json_data                                                         |
+-- +-------------------------------------------------------------------+
+-- | {"book": {"price": 19.99, "title": "Book1", "author": "Author1"}} |
+-- +-------------------------------------------------------------------+
+-- 1 row in set (0.00 sec)
+
+
+INSERT INTO student (json_data) VALUES ('{"fruits": ["apple", "banana"]}');
+
+SELECT json_data FROM student;
+-- expected in mysql 8.0.31
+-- mysql> SELECT json_data FROM student;
+-- +-------------------------------------------------------------------+
+-- | json_data                                                         |
+-- +-------------------------------------------------------------------+
+-- | {"age": 30, "name": "John"}                                       |
+-- | {"person": {"age": 25, "name": "Alice"}}                          |
+-- | {"book": {"price": 19.99, "title": "Book1", "author": "Author1"}} |
+-- | {"fruits": ["apple", "banana"]}                                   |
+-- +-------------------------------------------------------------------+
+-- 4 rows in set (0.00 sec)
+
+-- tc_004: insert new element
+UPDATE student 
+SET json_data = JSON_INSERT(json_data, '$.fruits[2]', 'cherry')
+WHERE id = 4;
+-- expected in mysql 8.0.31
+-- Query OK, 1 row affected (0.00 sec)
+-- Rows matched: 1  Changed: 1  Warnings: 0
+
+SELECT json_data FROM student WHERE id = 4;
+-- expected in mysql 8.0.31
+-- mysql> SELECT json_data FROM student WHERE id = 4;
+-- +-------------------------------------------+
+-- | json_data                                 |
+-- +-------------------------------------------+
+-- | {"fruits": ["apple", "banana", "cherry"]} |
+-- +-------------------------------------------+
+-- 1 row in set (0.00 sec)
+
+
+INSERT INTO student (json_data) VALUES ('{"numbers": [1, 3]}');
+
+SELECT * FROM student;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM student;
+-- +----+-------------------------------------------------------------------+
+-- | id | json_data                                                         |
+-- +----+-------------------------------------------------------------------+
+-- |  1 | {"age": 30, "name": "John"}                                       |
+-- |  2 | {"person": {"age": 25, "name": "Alice"}}                          |
+-- |  3 | {"book": {"price": 19.99, "title": "Book1", "author": "Author1"}} |
+-- |  4 | {"fruits": ["apple", "banana", "cherry"]}                         |
+-- |  5 | {"numbers": [1, 3]}                                               |
+-- +----+-------------------------------------------------------------------+
+-- 5 rows in set (0.00 sec)
+
+-- tc_005: insert new element
+UPDATE student 
+SET json_data = JSON_INSERT(json_data, '$.numbers[2]', 2)
+WHERE id = 5;
+-- expected in mysql 8.0.31
+-- mysql> UPDATE student 
+--     -> SET json_data = JSON_INSERT(json_data, '$.numbers[2]', 2)
+--     -> WHERE id = 5;
+-- Query OK, 1 row affected (0.00 sec)
+-- Rows matched: 1  Changed: 1  Warnings: 0
+
+SELECT json_data FROM student WHERE id = 5;
+-- expected in mysql 8.0.31
+-- mysql> SELECT json_data FROM student WHERE id = 5;
+-- expected in mysql 8.0.31
+-- +------------------------+
+-- | json_data              |
+-- +------------------------+
+-- | {"numbers": [1, 3, 2]} |
+-- +------------------------+
+-- 1 row in set (0.00 sec)
+
+
+INSERT INTO student (json_data) VALUES ('{"store": {"products": [{"name": "product1", "price": 10}]}}');
+
+SELECT * FROM student;
+-- expected in mysql 8.0.31
+-- +----+-------------------------------------------------------------------+
+-- | id | json_data                                                         |
+-- +----+-------------------------------------------------------------------+
+-- |  1 | {"age": 30, "name": "John"}                                       |
+-- |  2 | {"person": {"age": 25, "name": "Alice"}}                          |
+-- |  3 | {"book": {"price": 19.99, "title": "Book1", "author": "Author1"}} |
+-- |  4 | {"fruits": ["apple", "banana", "cherry"]}                         |
+-- |  5 | {"numbers": [1, 3, 2]}                                            |
+-- |  6 | {"store": {"products": [{"name": "product1", "price": 10}]}}      |
+-- +----+-------------------------------------------------------------------+
+-- 6 rows in set (0.00 sec)
+
+-- tc_006: insert new key:value
+UPDATE student 
+SET json_data = JSON_INSERT(json_data, '$.store.products[0].quantity', 5)
+WHERE id = 6;
+-- expected in mysql 8.0.31
+-- mysql> UPDATE student 
+--     -> SET json_data = JSON_INSERT(json_data, '$.store.products[0].quantity', 5)
+--     -> WHERE id = 6;
+-- Query OK, 1 row affected (0.00 sec)
+-- Rows matched: 1  Changed: 1  Warnings: 0
+
+SELECT json_data FROM student WHERE id = 6;
+-- expected in mysql 8.0.31
+-- mysql> SELECT json_data FROM student WHERE id = 6;
+-- +-----------------------------------------------------------------------------+
+-- | json_data                                                                   |
+-- +-----------------------------------------------------------------------------+
+-- | {"store": {"products": [{"name": "product1", "price": 10, "quantity": 5}]}} |
+-- +-----------------------------------------------------------------------------+
+-- 1 row in set (0.00 sec)
+
+INSERT INTO student (json_data) VALUES ('{"user": {"name": "User1"}}');
+
+SELECT * FROM student;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM student;
+-- +----+-----------------------------------------------------------------------------+
+-- | id | json_data                                                                   |
+-- +----+-----------------------------------------------------------------------------+
+-- |  1 | {"age": 30, "name": "John"}                                                 |
+-- |  2 | {"person": {"age": 25, "name": "Alice"}}                                    |
+-- |  3 | {"book": {"price": 19.99, "title": "Book1", "author": "Author1"}}           |
+-- |  4 | {"fruits": ["apple", "banana", "cherry"]}                                   |
+-- |  5 | {"numbers": [1, 3, 2]}                                                      |
+-- |  6 | {"store": {"products": [{"name": "product1", "price": 10, "quantity": 5}]}} |
+-- |  7 | {"user": {"name": "User1"}}                                                 |
+-- +----+-----------------------------------------------------------------------------+
+-- 7 rows in set (0.00 sec)
+
+-- tc_007: insert NULL value
+UPDATE student 
+SET json_data = JSON_INSERT(json_data, '$.user.email', NULL)
+WHERE id = 7;
+-- expected in mysql 8.0.31
+-- mysql> UPDATE student 
+--     -> SET json_data = JSON_INSERT(json_data, '$.user.email', NULL)
+--     -> WHERE id = 7;
+-- Query OK, 1 row affected (0.01 sec)
+-- Rows matched: 1  Changed: 1  Warnings: 0
+
+SELECT json_data FROM student WHERE id = 7;
+-- expected in mysql 8.0.31
+-- mysql> SELECT json_data FROM student WHERE id = 7;
+-- +--------------------------------------------+
+-- | json_data                                  |
+-- +--------------------------------------------+
+-- | {"user": {"name": "User1", "email": null}} |
+-- +--------------------------------------------+
+-- 1 row in set (0.00 sec)
+
+INSERT INTO student (json_data) VALUES ('{"category": "Electronics"}');
+
+SELECT * FROM student;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM student;
+-- +----+-----------------------------------------------------------------------------+
+-- | id | json_data                                                                   |
+-- +----+-----------------------------------------------------------------------------+
+-- |  1 | {"age": 30, "name": "John"}                                                 |
+-- |  2 | {"person": {"age": 25, "name": "Alice"}}                                    |
+-- |  3 | {"book": {"price": 19.99, "title": "Book1", "author": "Author1"}}           |
+-- |  4 | {"fruits": ["apple", "banana", "cherry"]}                                   |
+-- |  5 | {"numbers": [1, 3, 2]}                                                      |
+-- |  6 | {"store": {"products": [{"name": "product1", "price": 10, "quantity": 5}]}} |
+-- |  7 | {"user": {"name": "User1", "email": null}}                                  |
+-- |  8 | {"category": "Electronics"}                                                 |
+-- +----+-----------------------------------------------------------------------------+
+-- 8 rows in set (0.00 sec)
+
+-- tc_008: insert multiple keys:values
+UPDATE student 
+SET json_data = JSON_INSERT(json_data, '$.product_details', '{"brand": "ABC", "model": "XYZ"}')
+WHERE id = 8;
+-- expected in mysql 8.0.31
+-- mysql> UPDATE student 
+--     -> SET json_data = JSON_INSERT(json_data, '$.product_details', '{"brand": "ABC", "model": "XYZ"}')
+--     -> WHERE id = 8;
+-- Query OK, 1 row affected (0.01 sec)
+-- Rows matched: 1  Changed: 1  Warnings: 0
+
+SELECT json_data FROM student WHERE id = 8;
+-- expected in mysql 8.0.31
+-- mysql> SELECT json_data FROM student WHERE id = 8;
+-- +--------------------------------------------------------------------------------------------+
+-- | json_data                                                                                  |
+-- +--------------------------------------------------------------------------------------------+
+-- | {"category": "Electronics", "product_details": "{\"brand\": \"ABC\", \"model\": \"XYZ\"}"} |
+-- +--------------------------------------------------------------------------------------------+
+-- 1 row in set (0.00 sec)
+
+
+-- #####################################################
+--                Part 3: json_update
+-- #####################################################
+DROP TABLE IF EXISTS employees;
+CREATE TABLE employees (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    user_info JSON
+);
+
+INSERT INTO employees (user_info) VALUES ('{"name": "John", "age": 30}');
+
+SELECT * FROM employees;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM employees;
+-- +----+-----------------------------+
+-- | id | user_info                   |
+-- +----+-----------------------------+
+-- |  1 | {"age": 30, "name": "John"} |
+-- +----+-----------------------------+
+-- 1 row in set (0.00 sec)
+
+-- tc_001
+UPDATE employees SET user_info = JSON_REPLACE(user_info, '$.age', 31) WHERE id = 1;
+-- expected in mysql 8.0.31
+-- mysql> UPDATE employees SET user_info = JSON_REPLACE(user_info, '$.age', 31) WHERE id = 1;
+-- Query OK, 1 row affected (0.00 sec)
+-- Rows matched: 1  Changed: 1  Warnings: 0
+
+SELECT * FROM employees;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM employees;
+-- +----+-----------------------------+
+-- | id | user_info                   |
+-- +----+-----------------------------+
+-- |  1 | {"age": 31, "name": "John"} |
+-- +----+-----------------------------+
+-- 1 row in set (0.00 sec)
+
+INSERT INTO employees (user_info) VALUES ('{"person": {"name": "Alice", "address": {"city": "New York"}}}');
+
+SELECT * FROM employees;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM employees;
+-- +----+----------------------------------------------------------------+
+-- | id | user_info                                                      |
+-- +----+----------------------------------------------------------------+
+-- |  1 | {"age": 31, "name": "John"}                                    |
+-- |  2 | {"person": {"name": "Alice", "address": {"city": "New York"}}} |
+-- +----+----------------------------------------------------------------+
+-- 2 rows in set (0.00 sec)
+
+-- tc_002
+UPDATE employees SET user_info = JSON_REPLACE(user_info, '$.person.address.city', 'Los Angeles') WHERE id = 2;
+-- expected in mysql 8.0.31
+-- mysql> UPDATE employees SET user_info = JSON_REPLACE(user_info, '$.person.address.city', 'Los Angeles') WHERE id = 2;
+-- Query OK, 1 row affected (0.01 sec)
+-- Rows matched: 1  Changed: 1  Warnings: 0
+
+SELECT * FROM employees;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM employees;
+-- +----+-------------------------------------------------------------------+
+-- | id | user_info                                                         |
+-- +----+-------------------------------------------------------------------+
+-- |  1 | {"age": 31, "name": "John"}                                       |
+-- |  2 | {"person": {"name": "Alice", "address": {"city": "Los Angeles"}}} |
+-- +----+-------------------------------------------------------------------+
+-- 2 rows in set (0.00 sec)
+
+
+DROP TABLE IF EXISTS myproducts;
+CREATE TABLE myproducts (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    product_details JSON
+);
+
+INSERT INTO myproducts (product_details) VALUES ('{"size": "small", "color": "red", "weight": "light"}');
+
+SELECT * FROM myproducts;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM myproducts;
+-- +----+------------------------------------------------------+
+-- | id | product_details                                      |
+-- +----+------------------------------------------------------+
+-- |  1 | {"size": "small", "color": "red", "weight": "light"} |
+-- +----+------------------------------------------------------+
+-- 1 row in set (0.00 sec)
+
+-- tc_003
+UPDATE myproducts SET product_details = JSON_REPLACE(product_details, '$.size', "medium", '$.color', "blue") WHERE id = 1;
+-- expected in mysql 8.0.31
+-- mysql> UPDATE myproducts SET product_details = JSON_REPLACE(product_details, '$.size', "medium", '$.color', "blue") WHERE id = 1;
+-- Query OK, 1 row affected (0.04 sec)
+-- Rows matched: 1  Changed: 1  Warnings: 0
+
+SELECT * FROM myproducts;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM myproducts;
+-- +----+--------------------------------------------------------+
+-- | id | product_details                                        |
+-- +----+--------------------------------------------------------+
+-- |  1 | {"size": "medium", "color": "blue", "weight": "light"} |
+-- +----+--------------------------------------------------------+
+-- 1 row in set (0.00 sec)
+
+
+DROP TABLE IF EXISTS inventory;
+CREATE TABLE inventory (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    stock_items JSON
+);
+
+INSERT INTO inventory (stock_items) VALUES ('{"items": ["apple", "banana"]}');
+
+SELECT * FROM inventory;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM inventory;
+-- +----+--------------------------------+
+-- | id | stock_items                    |
+-- +----+--------------------------------+
+-- |  1 | {"items": ["apple", "banana"]} |
+-- +----+--------------------------------+
+-- 1 row in set (0.00 sec)
+
+-- tc_004
+UPDATE inventory SET stock_items = JSON_REPLACE(stock_items, '$.items[1]', "cherry") WHERE id = 1;
+
+SELECT * FROM inventory;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM inventory;
+-- +----+--------------------------------+
+-- | id | stock_items                    |
+-- +----+--------------------------------+
+-- |  1 | {"items": ["apple", "cherry"]} |
+-- +----+--------------------------------+
+-- 1 row in set (0.01 sec)
+
+
+INSERT INTO inventory (stock_items) VALUES ('{"items": ["1", "3", "5"]}');
+
+SELECT * FROM inventory;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM inventory;
+-- +----+--------------------------------+
+-- | id | stock_items                    |
+-- +----+--------------------------------+
+-- |  1 | {"items": ["apple", "cherry"]} |
+-- |  2 | {"items": ["1", "3", "5"]}     |
+-- +----+--------------------------------+
+-- 2 rows in set (0.00 sec)
+
+-- tc_005
+UPDATE inventory SET stock_items = JSON_REPLACE(stock_items, '$.items[0]', "2", '$.items[2]', "4") WHERE id = 2;
+-- expected in mysql 8.0.31
+-- mysql> UPDATE inventory SET stock_items = JSON_REPLACE(stock_items, '$.items[0]', "2", '$.items[2]', "4") WHERE id = 2;
+-- Query OK, 1 row affected (0.00 sec)
+-- Rows matched: 1  Changed: 1  Warnings: 0
+
+SELECT * FROM inventory;
+-- expected in mysql 8.0.31
+-- mysql> SELECT * FROM inventory;
+-- +----+--------------------------------+
+-- | id | stock_items                    |
+-- +----+--------------------------------+
+-- |  1 | {"items": ["apple", "cherry"]} |
+-- |  2 | {"items": ["2", "3", "4"]}     |
+-- +----+--------------------------------+
+-- 2 rows in set (0.00 sec)