PostgreSQL is well-supported by its active community. There are more than a dozen mailing lists available, categorized into topics like:PostgreSQL User Groups all over the world, and there is also an active IRC & Slack community.
There are also links to international sites that contain PostgreSQL information in various languages.
People in the PostgreSQL community also contribute to:
|Edco Wallet: What you need to know about PostgreSQL 13|
|Lætitia AVROT: Is my port open?|
|Andreas 'ads' Scherbaum: Stéphane Schildknecht|
|Bo Peng: Deploy Pgpool-II on Kubernetes to Achieve Query Load Balancing and Monitoring|
|Ryan Lambert: PostGIS Trajectory: Space plus Time|
|Dmitry Dolgov: Evolution of tree data structures for indexing: more exciting than it sounds|
|Lætitia AVROT: Postgres dress with pockets|