您使用 MYSQL_QUERY() 对您的表执行 SQL 查询，然后您使用 WHILE 重新格式化结果来预排将得到的对象，并将数据重新格式化为新的简单阵列。

You execute an SQL query against your table with MYSQL_QUERY() and with the result, you reformat using WHILE to walk through the resulting object, and reformat the data into a new simple array.

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数据库可以包含物化查询表（MQT），即用于 DWE OLAP 模型和多维数据集的预联结和预聚合的表。

The database may contain materialized query tables (MQTs), the pre-joined and pre-aggregated tables for DWE OLAP models and cubes.

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更加优秀预取路径：我们设计了预取路径引擎(提前加载)更加智能以至于能通过更多的方法来优化它创建的查询。

Even Better prefetch Paths: We made the prefetch path engine (eager loading) even smarter so it now knows more ways to optimize the queries it has to create.

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