Percona 要講進階的 MySQL Query Tuning...

看到「MySQL Webinar: Advanced Query Tuning」這個 Webinar,要講的主題看起來不賴:

1. GROUP BY and ORDER BY optimization
2. MySQL temporary tables and filesort
3. Using covered indexes to optimize your queries
4. Loose and tight index scans in MySQL

事後花時間來看投影片應該就夠了 :p

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