colouring-montreal/migrations/042.ui_revamp_tweaks.refactor.sql

ALTER TABLE buildings DROP COLUMN IF EXISTS context_front_garden;
ALTER TABLE buildings DROP COLUMN IF EXISTS context_back_garden;
ALTER TABLE buildings DROP COLUMN IF EXISTS context_flats_garden;

ALTER TABLE buildings ADD COLUMN IF NOT EXISTS context_front_garden boolean;
ALTER TABLE buildings ADD COLUMN IF NOT EXISTS context_back_garden boolean;
ALTER TABLE buildings ADD COLUMN IF NOT EXISTS context_flats_garden boolean;