Title:
INDEX CREATION AND DATA QUERYING METHODS, APPARATUS AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/073242
Kind Code:
A1
Abstract:
Index creation and data querying methods, an apparatus and a device. For a data record of writing in a ledger, the service attributes and serial number of the data record are determined, a merge field containing the service attributes and serial number is generated, and the correspondence between the merge field and position information is created at a storage position in the ledger, thus serial number information designated by a user is contained in an index and, when the user must perform querying, a database service end can obtain ordered query results according to the serial number in the merge field and return same to the user.
Inventors:
YANG XINYING (CN)
Application Number:
PCT/CN2020/109289
Publication Date:
April 22, 2021
Filing Date:
August 14, 2020
Export Citation:
Assignee:
ANT BLOCKCHAIN TECH SHANGHAI CO LTD (CN)
International Classes:
G06F16/22
Domestic Patent References:
| WO2019141289A2 | 2019-07-25 |
Foreign References:
| CN110825737A | 2020-02-21 | |||
| CN110162526A | 2019-08-23 | |||
| CN109902086A | 2019-06-18 | |||
| CN105740440A | 2016-07-06 | |||
| CN107273482A | 2017-10-20 | |||
| US20190042620A1 | 2019-02-07 |
Attorney, Agent or Firm:
BEIJING BESTIPR INTELLECTUAL PROPERTY LAW CORPORATION (CN)
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