func (c *conn) Query(query string, args []driver.Value) (driver.Rows, error) {
	panic("deprecated")
}
func (c *conn) Query(query string, args []driver.Value) (driver.Rows, error) {
	panic("deprecated")
}
// Queryer implements the database/sql/driver/Queryer interface.
// delete after go 1.9 compatibility is given up.