Methods and systems of query engines and secondary indexes implemented in a distributed database
US10445433B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Apr 27, 2015 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Jun 9, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/9538
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a computer-implemented method of a distributed database system included the step of providing a query processor to receive a query request and to chart out a query execution plan based on the query request. The method includes the step of providing a data generator to generate a digest list based on the query request, wherein the list of digests comprises each stream or filter applied in servicing the query request. The method includes the step of providing a query engine to obtain a digest list from a multiple-data source as a result of the query request and to filter the digest list. The method includes the step of providing a query worker to obtain the query request and process the query request based on a type of the query request. The method includes the step of providing one or more query worker threads to perform an asynchronous I/O operation for the query request.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.