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YouTubeHussein Nasser
The effect of Random UUID on database performance
In this video I whiteboard how UUIDs hurt write (and read performance) when used on secondary and primary indexes. UUIDv4 are the most popular but they are truly random. Compared to snowflakes, ULID or UUIDv7 or even UUIDv1. 0:00 UUIDv4 2:30 B+Tree Indexes and UUID 5:30 Random UUIDv4 Insert Workload 12:40 Ordered Insert Workload (UUID7/ULID ...
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UUID Generator
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终于有人把uuid讲清楚了！如何生成uuid？跟着来操作一遍吧！
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