Parallel execution of window functions
US8315980B2 · kind B2 · utility
4Cited by
4References
26Claims
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Key dates
| Filing date | Jul 5, 2005 |
| Grant date | Nov 20, 2012 |
| Priority date | — |
| Expiry date | Aug 14, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2209/5017
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques are described for parallelizing qualifying window functions without reliance on partitioning criteria specified in the command that includes the qualifying window functions. Because the techniques do not rely on partitioning criteria specified in the command, the techniques may be used on commands in which no partitioning criteria is specified. In general, the techniques involve partitioning the work of a qualified window function into ranges, and sharing precomputed aggregate values between computational elements to calculate the value for the window functions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.