Databases Relational mature
PostgreSQL
The world's most advanced open-source relational database
1.5K contributors
Since 1996
Enterprise-grade relational database with JSONB, extensions ecosystem (PostGIS, TimescaleDB, pgvector), MVCC, full ACID compliance, and rich SQL feature set.
License
PostgreSQL
Min RAM
256 MB
Min CPUs
1 core
Scaling
vertical
Complexity
intermediate
Performance
enterprise grade
Self-hostable
✓
K8s native
✕
Offline
✓
Pricing
fully free
Docs quality
excellent
Vendor lock-in
none
Use cases
- ✓ Primary transactional database for web applications
- ✓ GIS applications with PostGIS extension
- ✓ Time-series data with TimescaleDB extension
- ✓ Vector similarity search with pgvector for RAG
- ✓ JSONB document storage as MongoDB alternative
Anti-patterns / when NOT to use
- ✕ Horizontal sharding not native (need Citus)
- ✕ Not ideal for pure key-value workloads at massive scale
- ✕ Write-heavy append-only workloads better served by Cassandra
- ✕ Not a graph database
Integrates with
Complements
Compare with alternatives
Replaces / alternatives to
Technical specs
Language
C
API type
SDK
Protocols
PostgreSQL wire
Data model
relationaldocumentkv
Deployment
aptdockerbinary
SDKs
pythonjavascriptjavagorustrubycphpc#
Community
GitHub stars 0
Contributors 1.5K
Commit frequency daily
Plugin ecosystem massive
Backing PostgreSQL Global Dev Group
Funding community
Release
Latest version
— Last release —
Since 1996
Best fit
Team size
solosmallmediumenterprise
Industries
generalfintechhealthcaree-commercesaasgovernment