Data Engineering on Frederico Gago

Data Engineering on Frederico Gago – Tech Blog https://fredericogago.github.io/frederico-gago/tags/data-engineering/ Recent content in Data Engineering on Frederico Gago – Tech Blog Hugo -- 0.147.0 en-us Sun, 18 Jan 2026 13:00:00 +0000 UUID v5 as a Primary Key in PostgreSQL: when business keys stop being unique (and how to avoid collisions) https://fredericogago.github.io/frederico-gago/posts/postgres-uuidv5-primary-key-collisions-namespace-separator/ Sun, 18 Jan 2026 13:00:00 +0000 https://fredericogago.github.io/frederico-gago/posts/postgres-uuidv5-primary-key-collisions-namespace-separator/ How to generate deterministic UUID v5 primary keys from business keys without collisions, using explicit separators and governed namespaces in PostgreSQL.