发明授权
US07840554B2 Method for evaluating a conjunction of equity and range predicates using a constant number of operations 有权
使用恒定数量的操作来评估权益和范围谓词的连接的方法

Method for evaluating a conjunction of equity and range predicates using a constant number of operations
摘要:
Methods are described to simultaneously apply conjugates of equality, range, and in-list predicates. A first set of methods are described for the simultaneous application of equality predicates. A second set of methods are described for the simultaneous application of a mixture of range and equality predicates. A third method is described for the simultaneous applying a mixture of in-list predicates. The described methods allow for quick evaluation of complex predicates as they efficiently implement the computation done per record, while maintaining the same execution time irrespective of the number of fields.
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