如何在MySQL中使用Python编写自定义存储引擎、触发器和函数

import mysql.connector

# 创建自定义存储引擎类
class MyStorageEngine:
    def __init__(self):
        pass

    # 实现存储引擎的接口方法
    def open(self, create_flag):
        pass

    def close(self):
        pass

    def create(self, table_name, column_list):
        pass

    def drop(self, table_name):
        pass

    def read(self, table_name, key):
        pass

    def write(self, table_name, key, value):
        pass

# 注册自定义存储引擎
def register_storage_engine():
    cnx = mysql.connector.connect(user='root', password='password', host='localhost')
    cursor = cnx.cursor()

    cursor.execute("INSTALL PLUGIN my_storage_engine SONAME 'my_storage_engine.so'")

    cursor.close()
    cnx.close()

# 创建存储引擎
def create_storage_engine():
    cnx = mysql.connector.connect(user='root', password='password', host='localhost')
    cursor = cnx.cursor()

    cursor.execute("CREATE TABLE my_table (id INT, name VARCHAR(100)) ENGINE=my_storage_engine")

    cursor.close()
    cnx.close()

register_storage_engine()
create_storage_engine()

import mysql.connector

# 创建自定义触发器类
class MyTrigger:
    def __init__(self):
        pass

    # 实现触发器的接口方法
    def before_insert(self, table_name, values):
        pass

    def after_insert(self, table_name, values):
        pass

    def before_update(self, table_name, old_values, new_values):
        pass

    def after_update(self, table_name, old_values, new_values):
        pass

    def before_delete(self, table_name, old_values):
        pass

    def after_delete(self, table_name, old_values):
        pass

# 创建触发器
def create_trigger():
    cnx = mysql.connector.connect(user='root', password='password', host='localhost')
    cursor = cnx.cursor()

    cursor.execute("CREATE TRIGGER my_trigger BEFORE INSERT ON my_table FOR EACH ROW CALL my_trigger_func()")

    cursor.close()
    cnx.close()

import mysql.connector

# 创建自定义函数类
class MyFunction:
    def __init__(self):
        pass

    # 实现函数的接口方法
    def my_custom_function(self, arg1, arg2):
        pass

# 创建函数
def create_function():
    cnx = mysql.connector.connect(user='root', password='password', host='localhost')
    cursor = cnx.cursor()

    cursor.execute("CREATE FUNCTION my_function(arg1 INT, arg2 INT) RETURNS INT RETURN my_custom_function(arg1, arg2)")

    cursor.close()
    cnx.close()