Table connection method in distributed database system and distributed database system
US11163741B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Oct 24, 2018 |
| Grant date | Nov 2, 2021 |
| Priority date | — |
| Expiry date | Nov 25, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/25
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to example table connection methods, devices, and systems. In one example method, data that is sent by a coordinator node and that is in a first target column in a first data table is stored by a data node in a local memory. The data node receives a table connection request. When first data in the first target column is the same as second data in a second target column, the data node connects data in a row in which the first data is located to data in a row in which the second data is located. The data node sends a connection result to the coordinator node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.