What is PostgreSQL? — UK Software Development Guide

4 min readJune 2025ClickMasters Technical TeamReviewed by James Whitmore, CTO
what is postgresql

Direct Answer

PostgreSQL (commonly called Postgres) is a powerful, open-source relational database management system. It supports advanced SQL features, ACID transactions, complex queries, full-text search, and JSON data storage. PostgreSQL is considered the most advanced open-source database available and is the default choice for most UK software development projects.

Postgresql in the UK

PostgreSQL is ClickMasters' default database for UK projects due to: robust ACID compliance (important for financial and healthcare applications), UK GDPR right-to-erasure support via hard delete and row-level security, excellent performance at UK business scales (millions of records), and very strong AWS RDS and Azure Database for PostgreSQL managed service support in UK regions. PostgreSQL's row-level security feature is particularly valuable for multi-tenant SaaS platforms requiring UK GDPR data isolation.

Get Expert Advice on Postgresql

Get Expert Advice on PostgreSQL ClickMasters engineers apply PostgreSQL in every project. Free consultation. → clickmasterssoftwaredevelopmentcompany.co.uk/contact/