This fact makes a query like $fr['translations']['TREE']; somewhat hit and miss, unless the code making the query is sure of the provenance of the array.

这个事实使得类似 $fr['translations']['TREE']; 的查询有些碰运气，除非进行查询的代码确定数组的起源。

youdao

When creating a view on a JSONx document with XMLTABLE, DB2 v9.7 will pick up XML indexes that apply, thus making the query much faster than in previous versions.

当在JSONx文档上创建一个包含XMLTABLE的视图时，DB 2 v9.7将选择适用的xml索引，从而让查询更加快。

youdao

The optimizer would chalk out a query plan before performing the actual join operation itself by making use of the statistical data.

在执行实际的连接操作之前，优化器使用统计数据制定一个查询计划。

youdao

While Siri is going back and forth multiple times, Google is resolving the statement of the query on the client and then making a single request to the server.

FORBES: Client vs. Server Architecture: Why Google Voice Search Is Also Much Faster Than Siri