#coding=utf-8 import psycopg2 import time #测试单表插入性能try:start_time = time.time() # 记录开始时间connection1 = conn = psycopg2.connect(host='192.168.0.99', port=54321, user='user', password='pass', dbname='kingdb')# 操作数据库cursor1 = connection1.cursor() # 创建一个游标# 查询手机信息sql = " select * from DB_TEST_T"# 执行SQL查询(假设你已经建立了数据库连接和游标)cursor1.execute(sql)# 获取查询结果rows = cursor1.fetchall()i = 0for row in rows:ID = row[0]end_time = time.time() # 记录结束时间execution_time = end_time - start_time # 计算执行时间print(f"Function execution took {execution_time} seconds")except psycopg2.Error as e:print(f'错误:,{e}')