Part 3: Primary Key Showdown: UUIDv7 vs. Snowflake ID vs. BIGINT in High-Throughput Distributed Systems
← Previous Chapter: Part 2 — Golang vs. PHP/Laravel | Series hub | Next Chapter: Part 4 — Apache Kafka vs. NATS JetStream → Answer-first: For distributed write-heavy architectures (≥10,000 writes/s) on MySQL/InnoDB, Snowflake ID (64-bit) is optimal, eliminating the 50% secondary index multiplier tax while preserving B-tree locality. For PostgreSQL, client-generated keys, or coordinate-free distributed topologies, UUIDv7 (RFC 9562) delivers 98% sequential page packing without dedicated coordinator nodes, overcoming random UUIDv4 page thrashing and IOPS cliff failures. ...