Skip to main content

UUID

Browse all articles, tutorials, and guides about UUID

1posts

Posts

DevOps
|10 min read

Stop Using Random UUIDs as Primary Keys: uuidv7() Lands in PostgreSQL 18

Random UUIDv4 primary keys quietly wreck insert speed and bloat indexes on large tables. PostgreSQL 18 ships a native time-ordered uuidv7() that keeps the upsides of UUIDs without the B-tree penalty. Here are the numbers and how to adopt it.