Query processing method, query processing system, server and computer readable medium

A processing method and processing system technology, which are applied in computing, transmission systems, electrical and digital data processing, etc., can solve the problems that data query technology cannot meet the query requirements in the Internet of Things field, and are difficult to support at the same time.

Active Publication Date: 2019-09-20
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The data types in the field of the Internet of Things are diversified, and the amount of data is massive. The query scenarios cover the On-Line Analysis Processing (OLAP) scale query business and the On-Line Transaction Processing (OLTP) scale query

Method used

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  • Query processing method, query processing system, server and computer readable medium
  • Query processing method, query processing system, server and computer readable medium
  • Query processing method, query processing system, server and computer readable medium

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Embodiment Construction

[0110] In order for those skilled in the art to better understand the technical solutions of the present disclosure, a query processing method, query processing system, server, and computer-readable medium provided in the present disclosure will be described in detail below with reference to the accompanying drawings.

[0111]Example embodiments will be described more fully hereinafter with reference to the accompanying drawings, but may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0112] The terminology used herein is for describing particular embodiments only and is not intended to limit the present disclosure. As used herein, the singular forms "a" and "the" are intended to include the plural forms as well, unless the context clearly dictate...

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PUM

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Abstract

The invention provides a query processing method, which relates to the field of cloud computing and comprises the following steps that: a service node analyzes a query request and generates a corresponding logic execution plan; the service node judges whether the logic execution plan belongs to OLAP scale query service or OLT scale query service; when it is judged that the logic execution plan belongs to OLAP scale query service, the service node divides the logic execution plan into a plurality of logic execution sub-plans; the coordination node generates a first physical execution plan corresponding to the logic execution plan and feeds back the first physical execution plan to the service node, and the first physical execution plan records node information of processing nodes corresponding to the logic execution sub-plans; the service node distributes each logic execution sub-plan to the corresponding processing node according to the first physical execution plan; the processing node processes the corresponding logic execution sub-plan to obtain a query sub-result, and reports the processing sub-result layer by layer; and the service node gathers the received processing sub-results, generates a final query result and feeds the final query result back to the user.

Description

technical field [0001] The present disclosure relates to the technical field of the Internet of Things and the field of cloud computing, and in particular to a query processing method, a query processing system, a server, and a computer-readable medium. Background technique [0002] In the field of the Internet of Things, the importance of data to enterprises is immeasurable. By mining the value behind the data, we can analyze the past, monitor the present and make decisions about the future. In this process, an important link is data query. [0003] The data types in the field of the Internet of Things are diversified, and the amount of data is massive. The query scenarios cover the On-Line Analysis Processing (OLAP) scale query business and the On-Line Transaction Processing (OLTP) scale query business. However, it is difficult for existing data query engines to support OLAP-scale query services and OLTP-scale query services at the same time, that is, existing data query ...

Claims

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Application Information

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IPC IPC(8): G06F16/28G06F16/2457
CPCG06F16/283G06F16/2457G06F16/2453G06F9/4806G06F16/2471H04L67/51G06F16/284G06F16/24542G06F16/248
Inventor 张钢沈达宇
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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