Constraint data statistics for dynamic partition pruning
US11625384B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Oct 27, 2017 |
| Grant date | Apr 11, 2023 |
| Priority date | — |
| Expiry date | Aug 24, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/278
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed herein are system, method, and computer program product embodiments for performing dynamic partition pruning using data statistic objects as data integrity constraints. An embodiment operates by partitioning a database table into a plurality of partitions based on a partition criterion. The embodiment creates a data statistics object for a partition in the plurality of partitions. The embodiment receives a query for the database table. The embodiment determines the data statistics object is consistent with data in the partition. The embodiment processes the query for the partition based on the data statistics object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.