西维蜀黍

【Engineering】Semantic Versioning

Summary

Given a version number MAJOR.MINOR.PATCH, increment the:

  1. MAJOR version when you make incompatible API changes
  2. MINOR version when you add functionality in a backwards compatible manner
  3. PATCH version when you make backwards compatible bug fixes

Additional labels for pre-release and build metadata are available as extensions to the MAJOR.MINOR.PATCH format.

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Posted by Wei on 2023-02-22, Last Modified on 2024-01-15

【Database】索引 - 哈希索引 VS B+ Tree 索引

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Posted by Wei on 2023-02-22, Last Modified on 2023-07-18

【Database】存储引擎（Storage Engine）

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Posted by Wei on 2023-02-21, Last Modified on 2023-05-02

【Database】索引 - Build an LSM-tree Database

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Posted by Wei on 2023-02-21, Last Modified on 2023-05-02

【Database】索引 - LSM Trees VS B+ Trees

The B-tree and the Log-Structured Merge-tree (LSM-tree) are the two most widely used data structures for data-intensive applications to organize and store data. However, each of them has its own advantages and disadvantages.

LSM Tree is not a single data structure as a whole but combines multiple data structures that exploit the response times of different storage devices in the storage hierarchy. Being append only, it provides high rates of writes while still providing low cost reads via indexes maintained in RAM. In contrast to B+ tree based storage engine which performs in-place updates, there are no in-place updates in a LSM Tree and this helps in avoiding random I/Os.

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Posted by Wei on 2023-02-21, Last Modified on 2023-07-18

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