Because the XML input stage will generate multiple rows for the same customer, an aggregator stage is needed to consolidate redundant information of customer for the "cust" stage.
由于XML输入stage将为相同的客户生成多个行，因此需要使用一个聚合器stage为“CUST”stage合并客户的冗余信息。
Because the XML input stage will generate multiple rows for the same customer, an aggregator stage is needed to consolidate redundant information of customer for the "cust" stage.
由于XML输入stage将为相同的客户生成多个行，因此需要使用一个聚合器stage为“CUST”stage合并客户的冗余信息。
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