Efficient and scalable data evolution with column oriented databases
US8244735B2 · kind B2 · utility
4Cited by
15References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 2010 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Oct 16, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/2237
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, system and program product for data evolution on column oriented databases is disclosed. For an input evolution operation, reusable and non-reusable attributes are identified. For attributes in a target schema that cannot be reused from the source schema, data and bitmap indexes of those attributes are generated from source data and bitmap indexes. A decompose operation is disclosed for decomposing a table into two tables. A merge operation is disclosed in which only one input table can be reused for mergence. A second merge operation is disclosed in which both input tables cannot be reused for mergence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.