Creating a geometry column from 4 scalar columns

[Jon Locke]

All the examples I can find start with the assumption that you will create a 
geometry column with some ST_ function and a single column number. What if I 
need to create a geometry from multiple columns. For example, the data I have 
has rectangular geometries in 4 columns: XMin, XMax, YMin, YMax. Is there a way 
to deal with this in Sedona?

Thanks!

Jon