Title:
DATA QUERY METHOD, APPARATUS, DEVICE AND SYSTEM, AND MEDIUM
Document Type and Number:
WIPO Patent Application WO/2021/129062
Kind Code:
A1
Abstract:
A data query method, apparatus, device and system, and a medium. The data query method comprises: receiving a data query request, wherein the data query request comprises first index information (S210); in response to the data query request and in a plurality of storage spaces of a bloom filter, querying a first storage space matching the first index information, wherein a storage space corresponds to a blockchain, and data stored in each blockchain is different (S220); and in a first blockchain corresponding to the first storage space, querying first data corresponding to the first index information (S230). The method can improve data query efficiency.
Inventors:
XU YUZHUANG (CN)
ZHU TAO (CN)
WANG HEHE (CN)
HU JINGXIU (CN)
ZHOU YU (CN)
ZHU TAO (CN)
WANG HEHE (CN)
HU JINGXIU (CN)
ZHOU YU (CN)
Application Number:
PCT/CN2020/121086
Publication Date:
July 01, 2021
Filing Date:
October 15, 2020
Export Citation:
Assignee:
CHINA UNIONPAY CO LTD (CN)
International Classes:
G06F16/22; G06F16/2458; G06F21/62
Foreign References:
| CN111143371A | 2020-05-12 | |||
| CN109167811A | 2019-01-08 | |||
| CN109918398A | 2019-06-21 | |||
| CN110597912A | 2019-12-20 | |||
| US20180097779A1 | 2018-04-05 | |||
| US20190370241A1 | 2019-12-05 |
Attorney, Agent or Firm:
BEIJING EAST IP LTD. (CN)
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