lxd/db/db.go
func (c *Cluster) Close() error {
	for _, stmt := range c.stmts {
		stmt.Close()
	}
	return c.db.Close()
}
func (c *Cluster) Close() error {
	for _, stmt := range c.stmts {
		stmt.Close()
	}
	return c.db.Close()
}
// Close the database facade.