International Business Machines Corporation
Extensible data skipping

Abstract:

Techniques for data skipping that may be user defined and extensible may be provided. A method may include receiving a query, at a computer system comprising a processor, memory accessible by the processor, and computer program instructions stored in the memory and executable by the processor, modifying, at the computer system, the received query to utilize at least one data skipping index to evaluate at least one criterion of the query, wherein the at least one data skipping index comprises an index on at least one attribute of data that excludes index information for at least a portion of those data items that do not meet the at least one criterion, and wherein the at least one data skipping index is generated based on information received from an application programming interface, and evaluating, at the computer system, the query.