Bug Hunt
The Bug That Only Happened on Tuesdays
A weekly export failed every Tuesday and worked every other day. Three wrong hypotheses later, the cause was a date format string nobody had looked at in four years.
Bug Hunt
A weekly export failed every Tuesday and worked every other day. Three wrong hypotheses later, the cause was a date format string nobody had looked at in four years.
PostgreSQL
Adding a column should be instant. Sometimes it is not, and the difference is worth knowing before you run it in production.