What distinguishes PostgreSQL from other databases?

PostgreSQL differs from other databases with its powerful support for SQL standards and extensibility. It is an open-source object-relational database management system that supports complex data types, user-defined functions, triggers, and extensions.

Key differences:

• Support for extensions (e.g., PostGIS for geospatial data).
• Full-text search and JSON/JSONB types with indexing capabilities.
• Strong transactional model supporting ACID.
• Multi-version concurrency control (MVCC) for high concurrency.
• Ability to create custom data types and operators.

Unlike many NoSQL or less functional relational databases, PostgreSQL combines flexibility and power, making it suitable for complex and diverse tasks.