下面是我自己写的脚本，下面的脚本还能够优化吗？

#coding=utf-8

import MySQLdb

import numpy as np

conn = MySQLdb.connect(host='localhost',port = 3306,user='root',passwd='123456',db='google')
cur = conn.cursor()
conn.autocommit(1)

query_sql = "select id from google.Video where created_at < date_sub(now(), interval 1 year);"
insert_sql = "insert ignore into tmp.Video_2017bak (select * from google.Video where id = %s);"
delete_sql = "delete from google.Video where id = %s;"
cur.execute(query_sql)
dataList = cur.fetchall()
aaa = np.array(dataList)
ids = []

for i in range(len(aaa)):
ids.append(aaa[i])
if (i+1)%100==0 :
cur.executemany(insert_sql,ids)
ids = []
cur.executemany(insert_sql,ids)
ids = []

for i in range(len(aaa)):
ids.append(aaa[i])
if (i+1)%100==0 :
cur.executemany(delete_sql,ids)
ids = []
cur.executemany(delete_sql,ids)
ids = []

cur.close()
conn.close()