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:
|Dimitri Fontaine: PostgreSQL LISTEN/NOTIFY|
|Craig Kerstiens: ZFS Private Beta on Citus Cloud|
|pgCMH - Columbus, OH: PostgreSQL Data Types and You II|
|Pavel Stehule: New release of pspg - 1.2.0|
|Christophe Pettus: pg_rewind and checkpoints: caution!|
|Liaqat Andrabi: PGInstaller – A Step by Step Guide to install PostgreSQL|
|Joshua Otwell: More of My Favorite PostgreSQL Queries - and Why They Also Matter|