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:
|Bruce Momjian: Cloud Vendor Monetization of Open Source|
|Andreas 'ads' Scherbaum: Thomas Munro|
|Bo Peng: How to Configure SCRAM and MD5 Authentication in Pgpool-II|
|ahsan hadi: PostgresConf.CN and PGCONF.Asia 2020 combined together to bring the best|
|cary huang: In-Memory Table with Pluggable Storage API|
|Andrew Dunstan: When to deploy or upgrade to a new major PostgreSQL release|
|Bruce Momjian: Cloud Vendors as a Barrier|