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1·If you are using the RBO, then a merge join is the most efficient join when a join returns a large number or rows.

如果你使用RBO方式，那么一个合并连接是最有效的连接，当一个连接返回一个大数量或行。

2·There is little point comparing an execution plan to the RBO plan and being surprised if you get a different execution plan.

和RBO计划相比，执行计划只有相同的很少，你会得到一个不同的执行计划。

3·Lipase could lead the oil hydrolyzed if the rice bran not passivated in time especially in the high temperature, which in order to increase the acid value of RBO.

但由于米糠中含有解脂酶，如果钝化处理不及时或者米糠保存温度较高，米糠中脂肪酸解过程加速。