Incremental reclustering based on local maxima of partition overlap
US11442917B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2021 |
| Grant date | Sep 13, 2022 |
| Priority date | — |
| Expiry date | Apr 29, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/22
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed herein are systems and methods for incremental reclustering of database tables based on local maxima of partition overlap. In an embodiment, a database platform makes a determination, based on one or more incremental-reclustering criteria, to incrementally recluster a database table, which has a clustering key and which is stored across a plurality of partitions. In response to making the determination, the database platform selects a subset of the partitions, and at least incrementally reclusters the selected subset. The selecting of the subset includes identifying a local maximum of a quantity of overlapping partitions in the plurality of partitions with respect to a domain of the clustering key of the table, where the overlapping partitions overlap with respect to the clustering key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.