postgresql

The bug you never see · Decisions that hold, Part 1

Oct 20, 2026 - 14 min read

Is there stock? Is the name free? Is the balance enough? Every check-then-act decision has a gap between the check and the write, and two requests can both pass it. Nothing throws, the tests are green, and the bad state turns up weeks later. Why that is, what the database defaults do and don't do, and how to spot it in your own code.

Event sourcing with MongoDB, PostgreSQL or SQL Server

Oct 10, 2026 - 8 min read

The Cratis Team

Cratis

An event store doesn't have to be a special database. Chronicle keeps events in the database you already run, and this is where they land: databases per event store and namespace, the shape of the event record, the indexes and the read models.