Percona 對 MySQL Index 效用的基本教學

Percona 好像偶而就會整理一篇類似的文章出來...

這次是對 MySQL 上線後,關於 Index 的設計研究:「Basic Housekeeping for MySQL Indexes」。

包括了這幾個主題:

  • Unused indexes
  • Duplicated indexes
  • Potentially missing indexes
  • Multiple column indexes order

這幾點都還蠻基本的,不過這些都做完了之後效能應該不會太差,算是上線後的觀測基本功...

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