Our Postgres components are Open Source

Rock solid PostgreSQL

PostgreSQL 10.10  Aug 8 Advanced RDBMS [proven]
PostgreSQL 11.5  Aug 8 Advanced RDBMS [stable]
PostgreSQL 12beta4  Sep 12 Open Beta!! RDBMS

Sponsored by Amazon Aurora PostgreSQL

plProfiler 4.1 Aug 23 StoredProc profiler
CassandraFDW 3.1.3  Cassandra interoperability
AthenaFDW 3.1-2 Jul 7 Hive queries
APG 4.3.1 Sep 12 API for PG provisioing, mgmt & ctrl
pgTSQL 2.0.1 Sep 20 Sybase & SQL Server Transact-SQL
pgSpock 2.2 Sep 20 Logical Bi-Directional Replication

Sponsored by 2ndQuadrant Ltd

Postgres-BDR 1.0.7  Bi-directional replication
pgLogical 2.2.2 Jul 24 Logical replication

Sponsored by Crunchy Data Solutions, Inc.

BackRest 2.17 Sep 4 Backup & Restore
pgPartMan 4.2.0 Aug 20 Enhanced partition mgmt
Audit 1.3.1 Jun 17 Detailed compliance logging
SetUser 1.6.2  Privilege escalation

Sponsored by EnterpriseDB Corporation

pgAdmin4 4.12 Aug 22 Web based admin & dev tools
pgAgent 4.0.0  Background scheduler
MySQL FDW 2.5.1  MySQL interoperability
plDebugger 1.1-3  StoredProc debugger

Sponsored by NTT OSS Center DBMS

HintPlan 1.3.4  Control query execution plans
pgBulkload 3.1.15  High speed data loading

Sponsored by Zalando

Patroni 1.6.0 Aug 2 Template Container for HA
Spilo 1.6-p1  Aug 19 Docker Image using Patroni on Ubuntu 18
Helm 1.4-p16  Jul 1 K8 Chart using Spilo

More Great Extensions

pg_cron 1.1.4  Cron-like background scheduler
Cstore FDW 1.6.1  Small & fast ORC column store
TimescaleDB 1.4.2 Sep 12 Scaleable time-series data
PostGIS 2.5.3 Aug 11 Spatial & geographic objects
pgRepack 1.4.4  Reorg tables w/ minimal locks
OraFCE 3.8 May 22 Oracle compatibility functions
OracleFDW 2.1.0  Oracle integration
TDS FDW 2.0a3  Sybase/SQLServer integration
pl/Java 1.5.2  Java stored procedures

Excellent Tools

You do not retrieve these applications with our server-side pgcli. Instead download from the respective Open Source project sites or use appropriate client specific tools such as maven, pip, nuget, or gems.
 
WAL-G 2.12 Aug 12 Archive & Restore using S3
ora2pg 20.0  Oracle migration
pgBadger 11.0 Jun 23 SQL Performance Analyzer
Bucardo 5.5.0  Triggers based replication
pgBouncer 1.11  Connection Pooler
pgjdbc 42.2.6 Jun 18 PostgreSQL JDBC Driver
psycopg2 2.8.3 Jun 14 Python DB Adapter (uses libpq)
npgsql 4.0.9 Aug 14 .NET Data Provider for PG
ruby-pg 1.1.4  Ruby interface to PostgreSQL
psqlodbc 11.01 May 24 PostgreSQL ODBC Driver