下面是模拟项目的一个号段匹配的场景，由于数据没造好，非等值连接和等值连接count(1)j结果不同，项目场景中是相同的，主要是不理解实际执行计划几乎一样，为什么非等值连接相较等值连接效率那么差，下面是模拟场景
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