该数组是一组定义用户空间应用程序执行环境的参数列表。
This array is a list of parameters that define the execution environment for the user-space application.
记住,参数列表区是针对函数的所有调用定义的,因此可能会比任何单次函数调用需要的空间都大。
Remember, the parameter list area is defined for all of the calls made by a function, and therefore will likely be bigger than necessary for any individual function call.
空间表的结构很简单:一个惟一的整数列(objectid),组成主键的一个或多个列(从源表复制的),以及一个点几何列。
The spatial table has a simple structure: a unique, integer column (objectid), one or more columns making up the primary key (copied from the source table), plus a single point-geometry column.
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