UUID in PostgreSQL: uuid-ossp, gen_random_uuid(), and Primary Keys
Use UUIDs as primary keys in PostgreSQL. Compare uuid-ossp extension, gen_random_uuid(), and UUID v7 for index performance and insert throughput.
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Tags: developer-tools, uuid, postgresql
UUID in PostgreSQL: uuid-ossp, genrandomuuid(), and Primary Keys PostgreSQL has mature UUID support built in. Since version 13, is available without any extension. For new projects, UUID v7 as a primary key type gives you the uniqueness guarantees of UUIDs with B-tree performance close to . Here is the complete guide. genrandomuuid() — Built-in Since PG 13 generates a UUID v4 using PostgreSQL's random number generator. Since PostgreSQL 13, it is part of the core — no extension needed. PostgreSQL version check --- uuid-ossp Extension is the older extension that predates . It provides additional UUID versions that the built-in function does not. When to use uuid-ossp vs genrandomuuid() | Scenario | Choice | |----------|--------| | PostgreSQL 13+, just need random UUIDs | — no extension | |…
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