py 之impala数据库连接

from impala.dbapi import connect

  conn = connect(host='127.0.0.1', port=21050)
   
    cur = conn.cursor()
    sql_cmd = 'select name from data.user_data where envi_name = \'{}\' and \
                create_time  between \'{}\' and \'{}\' and platform_name = \'{}\' '.format(even_name, start_time, end_time, producet_name)
   
    print('sql_cmd: ', sql_cmd)

    cur.execute(sql_cmd)    

    data_list = cur.fetchall()
    login_count = len(data_list)