Postgres 15 improves UNIQUE and NULL
By Ryan Lambert -- Published July 11, 2022 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.
https://blog.rustprooflabs.com/2022/07/postgres-15-unique-improvement-with-null