您可以为这个远程对象定义一个索引规范，以使得联邦服务器知道索引，并且便于对这个远程对象的访问。

You can define an index specification for this remote object, to make the federated server aware of the index and facilitate the access of this remote object.

youdao

它有适当的索引，并且便于查找。

There is an adequate index, and it is not unduly difficult to find things.

youdao

为了便于讨论，我们选择的索引是一个三列索引，名为IX1，在(COLA, COLB, COLC)上创建。

For the purposes of discussion, our chosen index is a three-column index called IX1 created on (COLA, COLB, COLC).

youdao