Columns in this table that correspond to rule variables, or physical columns from the output definition of the rule, have the same data type as the corresponding columns in the data source.
该表中与规则变量对应的列，或者来自规则输出定义的物理列，具有与元数据中相应列相同的数据类型。
The most common pattern used with the Preferred Data Source Pattern is a wrapper pattern that makes disparate sources of information look the same; it presents the same WSDL port type.
与首选数据源模式一同使用的最常用的模式是包装器模式，该模式使得不同来源的信息看起来是相同的，并且它使用了相同的 WSDL 端口类型。
Is the data source of the same type as the target data type?
数据源的类型是否与目标数据类型相同？
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