Computer implemented method for retrieving data from a data storage system and according computer program product and data storage system

摘要

A computer implemented method for storing data in and retrieving data from a data storage system comprises the steps of calculating a dynamic bitmap data structure (7B) for at least one result set of a defined query condition concerning a data attribute included in a first query, storing said calculated bitmap data structure (7B) associated to said defined query condition in a cache memory of said data storage system, and accessing to said calculated bitmap data structure (7B) stored in said cache memory means to process at least a second query including said defined query condition.