使用sqlalchemy查询并删除数据表的唯一性索引

简单描述表结构，字段类型

desc tabl_name

删除索引：alter table `db`.`table_name` drop index `index_name`  注意里面的特殊符号: `

显式索引：

show index from table_name

#/usr/bin/env python
#coding:utf-8

from sqlalchemy import create_engine,text
engine = create_engine("mysql+pymysql://dbname:dbpassword@ip:3306/db?charset=utf8",encoding="utf-8",echo=True)
conn = engine.connect()
# text_sql='desc table_name'
# text_sql='show index from table_name'
text_sql='alter table  `db`.`table_name` drop index `index_name`'
s=text(text_sql)
conn.execute(s)
# print conn.execute(s).fetchall()