Hardware implementation of the aggregation/group by operation: hash-table method
US9563658B2 · kind B2 · utility
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22Claims
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Key dates
| Filing date | Aug 20, 2012 |
| Grant date | Feb 7, 2017 |
| Priority date | — |
| Expiry date | Aug 20, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/244
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques are described for performing grouping and aggregation operations. In one embodiment, a request is received to aggregate data grouped by a first column. In response to receiving the request, a group value in a row of a first column is mapped to an address. A pointer is stored for a first group at a first location identified by the address. The pointer identifies a second location of a set of aggregation data for the first group. An aggregate value included in the set of aggregation data is updated based on a value in the row of a second column.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.