Data filtering methods and apparatuses for data queries

Abstract

Embodiments of this specification provide data filtering methods, computer-readable media and apparatuses for data queries. The filtering methods can be performed by a target device that serves as a storage node of a database. As an example, a target filtering operator involved in a query is determined. A target data block stored in the target device is obtained. Further, a pre-built operator function set is queried by using a data feature and an encoding feature of the target data block to obtain a target execution function of the target filtering operator. The operator function set is used to record filtering operator execution functions that are suitable for use and that correspond to various data types and various encoding manners. The target data block can be filtered by using the target execution function matched by the query to obtain a filtering result.