-- name: has-permission
SELECT EXISTS (
    SELECT 1
    FROM users u
    INNER JOIN user_roles ur ON u.id = ur.user_id
    INNER JOIN roles r ON ur.role_id = r.id
    INNER JOIN role_permissions rp ON r.id = rp.role_id
    INNER JOIN permissions p ON rp.permission_id = p.id
    WHERE u.id = $1 AND p.permission_name = $2
);