資料儲存字段格式如下(json-最終展示結果：array互相巢狀)：
string='
,"adcode":"310106","province":"上海市","city":"上海市","district":"靜安區","fromsearch":1,"range":true,"name":"猛獁電動(共和新路***)","tag":false,"price":false,"description":"上海市靜安區共和新路492號","area_id":"310106","business_name":"猛獁電動(共和新路***)","latitude":31.251923,"longitude":121.463251,"poi_name":"上海市 · 猛獁電動(共和新路***)","poi_id":"9088848902695992720","level":1,"selected":true,"rangedistance":"2.0","citycode":"310000","extra_items":[,"adcode":"310106","province":"上海市","city":"上海市","district":"靜安區","fromsearch":1,"range":true,"name":"猛獁電動(共和新路***)","tag":false,"price":false,"description":"上海市靜安區共和新路492號","area_id":"310106","business_name":"猛獁電動(共和新路***)","latitude":31.251923,"longitude":121.463251,"poi_name":"上海市 · 猛獁電動(共和新路***)","poi_id":"9088848902695992720","level":1,"selected":true,"rangedistance":"2.0","citycode":"310000"},,"adcode":"310104","province":"上海市","city":"上海市","district":"徐匯區","fromsearch":1,"range":true,"name":"猛獁電動(中山南二路***)","tag":false,"price":false,"description":"上海市徐匯區中山南二路861號","area_id":"310104","business_name":"猛獁電動(中山南二路***)","latitude":31.184747,"longitude":121.450555,"poi_name":"上海市 · 猛獁電動(中山南二路***)","poi_id":"1737914136852040362","level":1,"selected":true,"rangedistance":"2.0","citycode":"310000"},,"adcode":"310113","province":"上海市","city":"上海市","district":"寶山區","fromsearch":1,"range":true,"name":"猛獁電動專賣店(共江路店)","tag":false,"price":false,"description":"上海市寶山區共江路204號","area_id":"310113","business_name":"猛獁電動專賣店(共江路店)","latitude":31.331,"longitude":121.456731,"poi_name":"上海市 · 猛獁電動專賣店(共江路店)","poi_id":"2079399087608466027","level":1,"selected":true,"rangedistance":"2.0","citycode":"310000"}]}
'select
poi_name_now
,get_json_object(m,
'$.poi_name
') as
poi_name
from
(
select get_json_object(string, '
$.poi_name
') as poi_name_now --
當前門店
,get_json_object(string, '
$.extra_items
') as extra_it --
所有門店
from
table
)lateral
view explode(split(regexp_replace(extra_it,'
^\\[|]$
',''), '
,(?!")
')) ext_it as
mgroup
by poi_name_now,get_json_object(m, '
$.poi_name
')
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