Connection method and device for key-value data table
A connection method and a connection device technology, applied in the field of databases, can solve irrelevant and low-efficiency problems, achieve the effects of reducing computing costs, reducing the total amount of data, and improving computing efficiency
Active Publication Date: 2022-04-29
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Problems solved by technology
[0003] In the process of realizing the present invention, the inventor found that there are at least the following problems in the prior art: the node data of the binary tree are all closely connected, and when the data is connected, there are a large amount of irrelevant data in the data in the data table
When connecting data, it is necessary to read certain irrelevant data that exists, which is inefficient
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[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0037] figure 1 A schematic flowchart of a connection method for a key-value data table provided by an embodiment of the present invention, as shown in figure 1 shown, which includes:
[0038] S101. Obtain a first Bloom array corresponding to each first keyword in the first key-value data table, and obtain a second Bloom array corresponding to e...
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The present invention provides a connection method and device for a key-value data table, the method comprising: obtaining a first Bloom array corresponding to each first keyword in the first key-value data table, and obtaining a second key-value data table The second Bloom array corresponding to each second keyword in ; filter out the first keyword and the second keyword corresponding to the first Bloom array and the second Bloom array, which must not have a duplicate relationship; after filtering The first keyword corresponding to the first Bloom array and the second keyword corresponding to the second Bloom array are connected to the first key-value data table and the second key-value data table. The method and device for connecting key-value data tables provided by the embodiments of the present invention first filter out the first key and the second key that must not have a duplicate relationship in the first key-value data table and the second key-value data table that need to be connected. Words are connected, which reduces the total amount of data that needs to be connected, thereby reducing computing costs and improving computing efficiency.
Description
technical field [0001] The invention relates to the field of databases, in particular to a method and device for connecting key-value data tables. Background technique [0002] The key-value (key-value) storage database is a non-relational (NoSQL) database model that has been widely adopted, and its data is organized, indexed and stored in the form of key-value pairs. When using key-value storage data, it will be stored according to different conditions. For example, the student information of a school may store the student numbers, subjects and grades of all students in the school as a data table, and the students in the class The name and student number are stored as another data table. If you want to obtain a data table containing the student's name and grades, you need to connect and merge the above two data tables according to the student number. At this time, the keyword is the student number, and the student's name, subject and grade are the data connected and merged...
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IPC IPC(8): G06F16/2455G06F16/22
CPCG06F16/22G06F16/2456
Inventor 胡懋地林文辉
Owner AEROSPACE INFORMATION