What is PostgreSQL?

The World's Most Advanced Open Source Database

PostgreSQL, often just called Postgres, is a powerful open source relational database that has been developed by a global community for over thirty years. It prides itself on standards compliance, reliability and a rich feature set that rivals commercial databases such as Oracle.

Why Developers Choose PostgreSQL

• Extensible: add custom data types, operators and functions.
• Standards compliant: follows the SQL standard very closely.
• Advanced features: JSON/JSONB, full-text search, window functions, materialized views and more.
• Strong typing: strict and safe handling of data types.
• MVCC concurrency: readers never block writers.
• Great tooling: psql for scripts, pgAdmin and DBeaver for GUI use.

PostgreSQL vs MySQL

MySQL is tuned for very high read throughput and simple deployment, which suits web content. PostgreSQL offers richer data types, better standards adherence, advanced indexing (GIN, GiST, BRIN) and heavier data analytics, which suits data-driven applications and complex workloads.

Where PostgreSQL Shines

• Analytics and reporting workloads.
• Applications storing JSON documents alongside relational data.
• Geospatial data with PostGIS.
• Concurrency-heavy OLTP systems.

Key Points

• PostgreSQL is a mature, extensible open source RDBMS.
• It supports advanced SQL features out of the box.
• MVCC means readers and writers do not block each other.
• Choose it when data integrity and advanced features matter more than raw speed.