For each row, for each element in exploded list emit 1 row.
Row r = { col1 }
Set x = [ a,b,c]
for (Object y : x){
emit(row, y)
}
If the set x size is 3 , three rows are output.
On Wed, May 31, 2017 at 8:31 AM, 张明磊 <[email protected]> wrote:
> Hello experts,
> I was wondering to know as the subject said, what is the
> corresponding java or scala code to the hive semantics "*lateral view
> explode*" ? In my recently work, i am a new to hql and have to do some
> work about “”Real-time off-line fusion“”. That was translate hql
> languages into "real time" code, running on the platform of storm or
> flink. So, I searched it on google but still confused. I have to ask for
> help to hive community, Could you share some light on it ?
>
> Thanks,
> Minglei.
>
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