public function getMysql() { $mysql = $this->expression->getMysql(); return "({$this->operator} {$mysql})"; }
public function __construct(AbstractExpression $mysql) { $this->mysql = "MIN({$mysql->getMysql()})"; }
public function getMysql() { $leftMysql = $this->left->getMysql(); $rightMysql = $this->right->getMysql(); return "({$leftMysql} {$this->operator} {$rightMysql})"; }