The official documentation provides a good introduction. But beneath this straightforward interface lies a set of more complex properties than most of us realise. Arrays in PostgreSQL are not just “lists” in a field. They have their own memory management strategy, their own index logic, and a lot of edge-case scenarios.
As it goes with boringSQL deep-dives, this article will explore the corners of array functionality that might break your production.
Click through for some not-boring explanation around arrays in PostgreSQL.