CREATE TABLE test_drive_packages ( id VARCHAR(64) PRIMARY KEY DEFAULT uuid_generate_v4(), name VARCHAR UNIQUE NOT NULL, package_type VARCHAR NOT NULL, description VARCHAR, created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP, updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ); CREATE TABLE test_drive_package_teachers ( id VARCHAR(64) PRIMARY KEY DEFAULT uuid_generate_v4(), user_id VARCHAR(64) REFERENCES users(id) ON DELETE CASCADE, test_drive_package_id VARCHAR(64) REFERENCES test_drive_packages(id) ON DELETE CASCADE, created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP, updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ); ALTER TABLE lesson_bookings ADD COLUMN test_drive_package_id VARCHAR(64) REFERENCES test_drive_packages(id); CREATE TABLE test_drive_package_choices ( id VARCHAR(64) PRIMARY KEY DEFAULT uuid_generate_v4(), test_drive_package_id VARCHAR(64) REFERENCES test_drive_packages(id) ON DELETE CASCADE, user_id VARCHAR(64) REFERENCES users(id) ON DELETE CASCADE, created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP, updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ); CREATE TABLE test_drive_package_choice_teachers ( id VARCHAR(64) PRIMARY KEY DEFAULT uuid_generate_v4(), test_drive_package_choice_id VARCHAR(64) REFERENCES test_drive_package_choices(id) ON DELETE CASCADE, teacher_id VARCHAR(64) REFERENCES users(id) ON DELETE CASCADE, created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP, updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ); ALTER TABLE teachers ADD COLUMN short_bio VARCHAR; ALTER TABLE test_drive_package_teachers ADD COLUMN short_bio VARCHAR;