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Every blog post that took off on Hacker News, ranked by the votes of its best submission. 2,337 posts.

Databases & Data
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175

Jepsen: NATS 2.12.1

NATS is a popular streaming system. Producers publish messages to streams , and consumers subscribe to those streams, fetching messages from them. Regular NATS streams are allowed to drop messages. However, NATS has a subsystem called JetStream , which uses the Raft consensus algorithm to replicate data among nodes…

180

Postgres 15 improves UNIQUE and NULL

Postgres 15 beta 2 was released recently! I enjoy Beta season... reviewing and testing new features is a fun diversion from daily tasks. This post takes a look at an improvement to UNIQUE constraints on columns with NULL values . While the nuances of unique constraints are not as flashy as making sorts faster (that's…