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Don't hide your database indexes!
Автор: PlanetScale
Загружено: 2023-07-03
Просмотров: 13485
Описание:
Using a redundant condition is a technique to allow MySQL to use an index where it might otherwise be impossible!
00:00 Intro
01:06 Redundant condition drawing
02:12 Obfuscated indexes in MySQL
03:04 Obfuscated index example
04:50 Redundant condition example
06:18 Explaining the ADDTIME query
07:18 Adding a redundant condition
08:59 A second example
10:41 When to use redundant conditions
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