villagesql-cube

Packages the upstream vsql-cube extension (an n-dimensional cube type with
point and box constructors and geometric functions (PostgreSQL cube port))
as a separate snap that plugs into the villagesql snap through the content
interface:

sudo snap install villagesql-cube
sudo snap connect villagesql:extensions villagesql-cube:extensions
sudo snap restart villagesql
sudo villagesql.mysql -uroot -e "INSTALL EXTENSION vsqlcube;"
sudo villagesql.mysql -uroot \

 -e "SELECT cubepoint(5.0);"