Mysql教程:性能跟踪语句
2008-08-30 11:07:25 来源:WEB开发网| Creating tmp table | 0.000029 | 0 | 0 | 0 | 0 | 0 |
| executing | 0.000005 | 0 | 0 | 0 | 0 | 0 |
| Copying to tmp table | 1.262877 | 1.24981 | 0.012998 | 0 | 0 | 0 |
| converting HEAP to MyISAM | 0.384814 | 0.187971 | 0.19797 | 0 | 0 | 0 |
| Copying to tmp table on disk | 1.417069 | 1.203817 | 0.191971 | 0 | 0 | 0 |
| Sending data | 31.104185 | 13.965877 | 0.843872 | 0 | 0 | 0 |
| end | 0.000017 | 0 | 0 | 0 | 0 | 0 |
| removing tmp table | 0.134872 | 0 | 0.029995 | 0 | 0 | 0 |
| end | 0.000026 | 0 | 0 | 0 | 0 | 0 |
| query end | 0.000006 | 0 | 0 | 0 | 0 | 0 |
| freeing items | 0.000011 | 0 | 0 | 0 | 0 | 0 |
| closing tables | 0.000009 | 0 | 0 | 0 | 0 | 0 |
| logging slow query | 0.000049 | 0 | 0 | 0 | 0 | 0 |
更多精彩
赞助商链接