Method and structure for federated web service discovery search over multiple registries with result aggregation (US7177862)

dispatching each said at least one query to a respective one of said data sources for a target data source search at each identified target data source,

wherein a format of said query statement further comprises an ability to include an aggregate operator, said aggregate operator defining at least one logical operation to be performed as an aggregate operation on results returned from said target data source searches.

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