jayzhan211 commented on issue #6555:
URL:
https://github.com/apache/arrow-datafusion/issues/6555#issuecomment-1605206543
I am considering applying unnest for each array and `join` them together, is
there an existing plan for this joining?
For example, unnest([1,2], [3,4,5]) is simplified to unnest_plan([1,2]),
unnest_plan([3,4,5])
```
Ok(Some(Union
Unnest:
unnest(make_array(Int64(1),Int64(2)),make_array(Int64(3),Int64(4)))_0
Projection: List([1,2]) AS
unnest(make_array(Int64(1),Int64(2)),make_array(Int64(3),Int64(4)))_0
EmptyRelation
Unnest:
unnest(make_array(Int64(1),Int64(2)),make_array(Int64(3),Int64(4)))_1
Projection: List([3,4]) AS
unnest(make_array(Int64(1),Int64(2)),make_array(Int64(3),Int64(4)))_1
EmptyRelation))
```
For those Unnest, apply some kind of `Join` for them. I did not find any
JoinType can concat rows side by side. Are there any existing ways to achieve
this?
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