Why PostgreSQL Stands Out: Community, Innovation, and Cloud Power

PG Community Uniqueness

Unlike 99% of open‑source databases that are backed by commercial companies, PostgreSQL is the 1% that remains purely community‑driven. The governance structure includes a trademark and domain holder, an annual developers summit in Canada, a core team, a code‑of‑conduct committee, and sponsorship committees, ensuring disciplined, long‑term development.

The contribution pie chart shows that individual users provide the largest share of code, followed by database service providers (training, support, etc.), together accounting for about 66% of contributions; the remaining share comes from database vendors and cloud providers.

The country distribution chart shows contributions from many nations; China is absent only because the list includes contributors with at least two years of activity.

Open‑Source License Uniqueness

PostgreSQL uses a BSD‑like license that permits free redistribution, modification, and commercial use as long as the license notice is retained. This permissive model makes PostgreSQL attractive to cloud providers seeking a “no‑strings‑attached” database.

Architecture Uniqueness

PostgreSQL’s open interface design enables extensive extensibility: graph, stream, GIS, time‑series, recommendation, and search engines are built as extensions. Machine‑learning, image‑recognition, tokenisation, vector computation, and MPP workloads also rely on PostgreSQL’s extension framework.

PG Commercial and Innovation Capability

Enterprise‑grade requirements such as zero data loss, high availability, security, horizontal scalability, and modularity are met by PostgreSQL. Oracle compatibility is provided via plugins (e.g., PPAS) that support PL/SQL data types, functions, and packages, allowing seamless migration of Oracle stored procedures to PL/pgSQL.

Innovation highlights include GPU‑accelerated parallel computation that is transparent to users, and multi‑model support that lets PostgreSQL handle workloads traditionally reserved for NoSQL systems.

New Versions and Features

PostgreSQL 11 Highlights

Enhanced partition tables: hash partitioning, trigger support, default partitions, and the ability to modify partition keys.

Parallel computing improvements: up to 20× speed‑up for large scans, sorts, aggregates, and index builds (e.g., a 1‑billion‑row table sorted in under 3 seconds with parallelism versus >70 seconds without).

btree index INCLUDE columns: leaf pages can store additional non‑key attributes, reducing I/O for queries that need those columns.

Faster column addition (with or without default values) performed instantly.

Stored procedures now support sub‑transactions.

Example syntax for creating a stored procedure:

CREATE [ OR REPLACE ] PROCEDURE name ( [ [ argmode ] [ argname ] argtype [ { DEFAULT | = } default_expr ] [, ...] )
   { LANGUAGE lang_name
   | TRANSFORM { FOR TYPE type_name } [, ... ]
   | [ EXTERNAL ] SECURITY INVOKER | [ EXTERNAL ] SECURITY DEFINER
   | SET configuration_parameter { TO value | = value | FROM CURRENT }
   | AS 'definition'
   | AS 'obj_file', 'link_symbol' } ...

PostgreSQL 12 Highlights

AM (Access Method) interface: a new layer between indexes/table access methods allowing addition of storage engines such as in‑memory tables, column stores, and compressed tables.

Massive partition performance: queries over 1 000 partitions see >400× speed‑up.

GiST index INCLUDE support for spatio‑temporal searches and reduced heap fetches.

CTE materialisation control: optional materialisation enables the optimizer to push predicates into non‑materialised CTEs for better performance.

Log sampling: selective audit logging reduces overhead while still capturing useful error information. COPY WHERE clause: filters rows during bulk import, avoiding unnecessary data ingestion.

PG on Cloud

Alibaba Cloud’s PolarDB, a cloud‑native distributed relational database, offers compatibility with MySQL, PostgreSQL, and Oracle syntax. It can scale compute resources beyond 1 000 cores and storage up to 100 TB, providing features such as Oracle‑compatible syntax, PostgreSQL‑compatible engine, and (in development) transparent read/write splitting.