View two geometry columns together in pgAdmin Geometry Viewer

Question

I have two geometry columns like this:

How can I see them together in the Geometry Viewer?
If i select all rows it shows only one column at a time.

Answer 1

Not directly, but you can construct a new geometry - or a geometry collection - containing the two geometries using st_collect

select st_collect('point(1 1)'::geometry, 'linestring(0 0, 0 1)'::geometry)

or more likely from two tables

select st_collect(a.geom,b.geom)   
from a join b on ...