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:
|Hubert 'depesz' Lubaczewski: Million explain plans…|
|Alexander Korotkov: Rainbow Your Psql Output|
|Bruce Momjian: Postgres Pulse|
|Andreas 'ads' Scherbaum: Magnus Hagander|
|Michael Paquier: Postgres 14 highlight - CREATE TABLE COMPRESSION|
|David E. Wheeler: A Few Belated PGXN UpdatesThe last couple weeks I’ve returned to PGXN and ma|
|Bruce Momjian: Optimization Aggressiveness|