Accelerated filtering, grouping and aggregation in a database system
US11669521B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2022 |
| Grant date | Jun 6, 2023 |
| Priority date | — |
| Expiry date | Feb 22, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/2455
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for causing a processor to perform a query on a column-store table of encoded values is provided. The method includes configuring the processor to receive the query, comprising a filter to be applied to at least a first column vector of the encoded values. The processor processes the query for the encoded values in the first column vector, to generate a first vector indicative of respective encoded values passing or failing the filter. The processor determines, from the first vector, an indicator of encoded values passing the filter and encoded values failing the filter, relative to the encoded values in the first column vector. The processor determines a bit length of the encoded values. The processor selects an algorithm for processing the query based on the indicator and the determined bit length of the encoded values. A system and a non-transitory, computer-readable medium are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.