对于涉及到 MQT 的执行计划，并且该 MQT 是涉及远程表访问的计划上的 MQT，查询优化器给予它优先权。

The query optimizer will give priority to an execution plan involving an MQT over a plan that involves access to remote tables.

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船舶抵押权的登记状况，允许公众查询。

Information about the registration of mortgage of ships shall be accessible to the public for enquiry.

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其中每一个方法接受一个transformation context object，您可以对它进行查询，以获取对资源以及目标对象的访问权。

Each of these methods accepts a transformation context object, which you can query to gain access to the source and target objects.

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