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UUIDv7 Is a Great Database Key and a Bad Clock: 4 Tests Before You Migrate
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UUIDv7 Is a Great Database Key and a Bad Clock: 4 Tests Before You Migrate

DEV Community: postgres·Kiell Tampubolon·3 days ago
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#devtopostgresql#devto#dev#time#uuidv7

UUIDv7 primary keys help database indexes, but the embedded timestamp is not a reliable clock. Four tests to run before migrating your PostgreSQL IDs.

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Stop using UUID v4 for database primary keys — UUIDv7 is the 2026 default
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Stop using UUID v4 for database primary keys — UUIDv7 is the 2026 default

DEV Community·engr anees·6 months ago
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#javascript#but#webdev#database#uuid

Your B-tree indexes hate UUID v4. They've hated it for years. You probably haven't noticed because...

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