hive抽取类数组型数据

数据样式，

抽取apps字段中的“微信”和“QQ”，目标数据如下，

思路：按","将apps字段进行拆分成行，然后在按，进行分割后取第二部分，

select 
user
,concat_ws(',', collect_set(split(app, '\\,')[1])) AS applist --从0开始计数，第二部分标号为1
from (
select 'X123' as user ,'["123,微信,abc","234,QQ,bcd"]' as apps
)a
 LATERAL VIEW explode(split(apps, '\\"\\,\\"')) a AS app
 group by user