jiql是在JAVA GAE上访问Google Datastore的JDBC wrapper（这个不知道怎么说了，请大家见谅）



jiql支持标准的sql语言进行访问



jiql介绍一个概念叫做“叶表”（Table Leafs） 。 叶表是一种可以无限量动态添加或者合并在一起形成一个新表的数据储存方式。叶表用SQL提供了一个标准的方法，用来避开GAE不超过一千个返回结果的限 制，为了优化结果，在相似叶表中他们拥有相同的父级。这意味着所有的叶表成员都储存在同一个google云节点，可以高速访问数据。

要禁用叶表，可以在创建表的声明末尾添加：

tableleafs=false-jiql Google Datastore access JAVA GAE JDBC wrapper (do not know how to say, please forgive me) jiql standard sql language support to visit jiql introduce a concept called " leaf table (Table Leafs). Leaf table is an unlimited amount of dynamically added or combined to form a new table of data storage. Leaf table with a SQL provides a standard method to avoid GAE returns the result of the limitations of not more than one thousand similar leaf table, in order to optimize the results, they have the same parent. This means that all members of the leaf table stored in the same google cloud node, high-speed access to data. To disable the leaf surface, can be added at the end of the create table statement: tableleafs = false