Beijing Volcano Engine Technology Co., Ltd.

Junling Du

Leilei Hu

Zhaowei Huang

Xuan Luo

Kejian Ju

A data reading and writing method, apparatus and electronic device are provided. In one embodiment, the method includes: receiving a data reading and writing request for a first database, wherein the first database stores data in a column-oriented storage format, the data reading and writing request is used for reading/writing data from/into a row storage table, the first database includes a front-end node and a back-end node, the front-end node is used for receiving the data reading and writing request and the back-end node is used for storing data; parsing the data reading and writing request in the front-end node and sending a parsing result to the back-end node; and reading/writing data from/into a second database by using the parsing result in the back-end node, wherein the first database calls data from the second database, and the second database stores data in a row-oriented storage format.

Data reading and writing method, electronic device and medium

A data query method based on Doris includes: acquiring history data in a bottom operator in a storage engine architecture of the Doris, and performing an aggregation calculation on the history data to obtain an aggregation result of the history data; caching, by a preset cache system, the aggregation result of the history data; performing an aggregation calculation on real-time data in a newly inserted bottom operator in the Doris, in response to a data query request, to obtain an aggregate result of the real-time data; acquiring the aggregation result of the history data from the preset cache system, and merging the aggregation result of the history data with the aggregation result of the real-time data to obtain merged data; and sending, by a data sending operator in the Doris, the merged data to an upper layer of an execution engine, to output a final data query result.

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Beijing, China

Junling Du