Title:
DATA QUERY
Document Type and Number:
WIPO Patent Application WO/2019/105420
Kind Code:
A1
Abstract:
A data query method, a system and a connector. Said method comprises: a querier sending a SparkSQL query instruction to a connector (41), the SparkSQL query instruction comprising a table identifier of a HBase table, metadata of the HBase table and attribute values corresponding to the metadata; after having received the SparkSQL query instruction, the connector generating a first Phoenix query instruction if an index table corresponding to the table identifier and the metadata exists in a memory, and sending the first Phoenix query instruction to the memory (42), the index table being used to record a correlation between the attribute values of the metadata of the HBase table and row keys of the HBase table, the first Phoenix query instruction comprising the table identifier, the metadata, and the attribute values; after having received the first Phoenix query instruction, the memory acquiring, from the index table corresponding to the table identifier and the metadata, the row keys corresponding to the attribute values, acquiring, from the HBase table corresponding to the table identifier, row data corresponding to the row keys (43), and returning the row data to the connector (44); and after having received the row data, the connector returning the row data to the querier (45).
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Inventors:
DING YUANPU (CN)
LI RIGUANG (CN)
LI RIGUANG (CN)
Application Number:
PCT/CN2018/118249
Publication Date:
June 06, 2019
Filing Date:
November 29, 2018
Export Citation:
Assignee:
NEW H3C BIG DATA TECH CO LTD (CN)
International Classes:
G06F16/24
Foreign References:
| CN105354255A | 2016-02-24 | |||
| CN107122437A | 2017-09-01 | |||
| CN107133342A | 2017-09-05 | |||
| US9779150B1 | 2017-10-03 |
Other References:
See also references of EP 3683697A4
Attorney, Agent or Firm:
LINDA LIU & PARTNERS (CN)
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