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:
|Peter Geoghegan: Visualizing Postgres page images within GDB|
|Viorel Tabara: Benchmarking Managed PostgreSQL Cloud Solutions - Part Two: Amazon RDS|
|Pavel Stehule: How to split string to array by individual characters?|
|Peter Bengtsson: Best way to count distinct indexed things in PostgreSQL|
|Yogesh Sharma: PostgreSQL Zero to Hero: Getting Started with RPMs -Part 1|
|Craig Kerstiens: How to evaluate your database|
|Christophe Pettus: “Look It Up: Practical PostgreSQL Indexing” at Nordic PGDay 2019|