Class yii\db\conditions\BetweenColumnsCondition

BetweenColumnCondition 类表示 BETWEEN 条件 其中值在两个列中间。比如：

new BetweenColumnsCondition(42, 'BETWEEN', 'min_value', 'max_value')
// Will be built to:
// 42 BETWEEN min_value AND max_value

还有更加复杂的例子：

new BetweenColumnsCondition(
   new Expression('NOW()'),
   'NOT BETWEEN',
   (new Query)->select('time')->from('log')->orderBy('id ASC')->limit(1),
   'update_time'
);

// Will be built to:
// NOW() NOT BETWEEN (SELECT time FROM log ORDER BY id ASC LIMIT 1) AND update_time