How to merge results from two different views? I need to write an impossible view and I achieve to retrieve the correct list of nodes in two different views and now I need to merge the results in one single table.

How can I merge it? 

If the views_1 give me nodes: [2, 52, 68, 41]
and the views_2 give me nodes: [2, 66, 88]
I want ONE table with the nodes: [2, 52, 68, 41, 66, 88]

I can't just merge filter's views because they are based on two relationships so I can't say to require one relationship OR the other one, but only to require one or both relationship.
Output one view as you normally would.


Implement views_pre_render.
Call view::preview on the second view.
Manually merge the results from 2 into 1.