如何让两个线程将特定时间戳插入表中？

import threading
import sqlite3
import time

def insert_timestamp(thread_name, timestamp):
    conn = sqlite3.connect('example.db')
    cursor = conn.cursor()
    cursor.execute("INSERT INTO timestamps (timestamp) VALUES (?)", (timestamp,))
    conn.commit()
    print(f"{thread_name} inserted {timestamp}")
    conn.close()

def thread_function(thread_name):
    timestamp = int(time.time())
    insert_timestamp(thread_name, timestamp)

thread1 = threading.Thread(target=thread_function, args=("Thread 1",))
thread2 = threading.Thread(target=thread_function, args=("Thread 2",))

thread1.start()
thread2.start()

thread1.join()
thread2.join()