searchstr_map.py

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

import sys
import re

for line in sys.stdin:
    line = line.strip()
    fields = line.split("\t")
    cityid = str(fields[0])
    searchstr = fields[1]
    pv = str(fields[2])
    qrys = re.findall(r'([a-z][\-_.0-9]+)', searchstr)
    qrys.sort()
    sorted_str = ''.join(qrys)
    print '%s\t%s\t%s\t%s' % (cityid, searchstr, sorted_str, pv)

hive 命令行使用：

add file searchstr_map.py

select
    TRANSFORM (src.cityid, src.searchstr, src.pv)  
    USING 'python searchstr_map.py'  
    AS (cityid, searchstr, sorted_str, pv) 
from
(select 
    if(cityid='1', 0, cast(cityid as int)) cityid,
    a.searchstr,
    count(1) pv
from 
(select 
    split(request['cityid'], ',') cityid_arr,
    request['searchstr'] searchstr
from db.tablename where dt_ymd=20170731
and request_ser like '%/search/carinfo%'
and request['searchstr'] is not null and request['searchstr'] <> '') a
lateral view explode(a.cityid_arr)t as cityid
where cityid rlike '^[0-9]+$'
group by if(cityid='1', 0, cast(cityid as int)), a.searchstr) src