Parallel partitioning index scan
US8515945B2 · kind B2 · utility
13Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2010 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | Nov 16, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/2456
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
System, methods and articles of manufacture for joining data in the database tables comprising, performing an index scan on a global index of a first database table, determining rows in the first database table that may be joined with a second database table based on a needed partitioning, wherein the needed partitioning is determined using an index scan, determining a number of partitions in the second database table, and joining each of the corresponding partitions in the first database table with a corresponding partitions in the second database table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.