Execution of database queries including filtering

Details Execution of database queries including filtering Execution of database queries including filtering

G - Physics

06

F

G06F 17/30 (2006.01)

Patent

CA 2307155

A query processing system has a query processor and a data manager. The query processor calls the data manager to carry out data access for a query including a filtering operation, The date manager accesses the data in a set of data and before returning the data, initiates a callback to the query processor to determine if the located data meets the filtering criteria. Where the data does not satisfy the filtering criteria, the data manager seeks additional data in the set of data, without having to return the first located data to the query processor.

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