- Solution by PostGIS developer Darafei Praliaskouski.
- http://blog.cleverelephant.ca/2018/06/polygon-splitting.html
- https://thadk.carto.com/builder/392fb7e5-7a95-4b42-92cc-32e4c29594ae/embed (for Ghana's Mion district)
CREATE TABLE peru AS
SELECT * FROM countries
WHERE name LIKE 'peru'