What are PostgreSQL Extensions?
Think of PostgreSQL extensions as power-ups for the database engine. They help it do more things and bring in cool new features.
Extensions work a bit like building blocks. You can decide which ones you want and add them to your PostgreSQL. This lets you make the database just the way you need it. If you're a developer needing special tools or an administrator wanting better performance, extensions are like magic tools that let you shape PostgreSQL into the perfect fit for your needs.
Some Examples of Useful Extensions:
pg_stat_statements -
pg_vector -
postgis -
timescaledb -
file_fdw -
Trunk Extensions Registry
Trunk is an open-source package installer and registry for PostgreSQL extensions. You can find, learn more, and install extensions from a list of about 200 extensions (as of Sep 2023).
My Take:
This is a useful resource to find extensions, and far more important - easily install them. Remember that the cloud vendors, such as AWS or Azure, limit the extensions you can install. This solution is only relevant for your Docker-based PG.