高性能MySQL：剖析单条查询（1）[2]

| checking permissions | |

| checking permissions | |

| checking permissions | |

| checking permissions | |

| checking permissions | |

| optimizing | |

| statistics | |

| preparing | |

| Creating tmp table | |

| executing | |

| Copying to tmp table | |

| Sorting result | |

| Sending data | |

| removing tmp table | |

| Sending data | |

| init | |

| optimizing | |

| statistics | |

| preparing | |

| executing | |

| Sending data | |

| end | |

| query end | |

| freeing items | |

| removing tmp table | |

| removing tmp table | |

| closing tables | |

| logging slow query | |

| logging slow query | |

| cleaning up | |

++

返回目录高性能MySQL

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