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Storage space estimation method and device, electronic equipment and readable storage medium

A storage space and space technology, applied in the database field, can solve problems such as low space usage rate and poor computing performance, and achieve the effect of ensuring space usage efficiency and overall computing performance

Active Publication Date: 2021-08-24
ALIBABA GRP HLDG LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, most of the schemes used in the database are to directly apply for the maximum space or calculate the size of the result accurately and then calculate the output result twice, which will face the problems of low space usage and poor computing performance

Method used

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  • Storage space estimation method and device, electronic equipment and readable storage medium
  • Storage space estimation method and device, electronic equipment and readable storage medium
  • Storage space estimation method and device, electronic equipment and readable storage medium

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Embodiment Construction

[0074] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily realize them. Also, for clarity, parts not related to describing the exemplary embodiments are omitted in the drawings.

[0075] In the present disclosure, it should be understood that terms such as "comprising" or "having" are intended to indicate the existence of labels, numbers, steps, acts, components, parts or combinations thereof disclosed in this specification, and are not intended to exclude one or multiple other labels, numbers, steps, acts, parts, parts or combinations thereof exist or are added to the possibility.

[0076] In addition, it should be noted that, in the case of no conflict, the embodiments in the present disclosure and the labels in the embodiments can be combined with each other. The present disclosure will be described in detail below with reference to the accompanying...

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Abstract

The embodiment of the invention discloses a storage space estimation method and device, electronic equipment and a readable storage medium. The storage space estimation method comprises the following steps: calculating and estimating a first storage space occupied by result data after data calculation based on sampling sum of data; writing the result data into the estimated first storage space; and writing the residual result data into a second storage space based on the fact that the residual result data is not written after the first storage space is fully written, so that the overall calculation performance is ensured while the space use efficiency is ensured.

Description

technical field [0001] The present disclosure relates to the technical field of databases, in particular to a storage space estimation method, device, electronic equipment and readable storage medium. Background technique [0002] In the computer field, it is often necessary to perform a large number of calculations and apply for storage space for the calculation results. In some scenarios, you can directly apply for the maximum space, or first calculate the size of the result accurately and then recalculate the output result. For example, in a database usage scenario, it is necessary to apply for a calculation result space before using various operator calculations, and write the results into the result space during the calculation process. At present, most of the schemes used in the database are directly applying for the maximum space or calculating the size of the result accurately and then recalculating the output result, which will face the problems of low space usage ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/0608G06F3/064G06F3/0671
Inventor 金天波沈国权吕政吴宇昊谢小龙
Owner ALIBABA GRP HLDG LTD
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