PostgreSQL vs TimescaleDB
PostgreSQL: The extensible, standards-first open-source relational database. TimescaleDB: PostgreSQL extension adding hypertables, columnar compression and continuous aggregates for time series.
key differences
- PostgreSQL is primarily a relational database; TimescaleDB is time-series.
- Licensing: PostgreSQL is open source (permissive) (PostgreSQL License); TimescaleDB is source-available (Apache-2.0 core + Timescale License (TSL) for advanced features).
- Horizontal scaling is addon in PostgreSQL and none in TimescaleDB.
- Only PostgreSQL has geospatial, change data capture, online schema changes.
- Only TimescaleDB has ttl / expiry, columnar storage, branching.
choose postgresql for
- +General-purpose application backend
- +SaaS multi-tenant data
- +Geospatial applications with PostGIS
- +Semantic search alongside relational data with pgvector
best at · OLTP, Geo, Search
choose timescaledb for
- +IoT and sensor data joined with relational metadata
- +Financial tick and market data analytics in SQL
- +Product and application metrics dashboards
- +Energy and utility metering
best at · Time-series, Real-time analytics, IoT
PostgreSQL vs TimescaleDB: FAQ
What is the difference between PostgreSQL and TimescaleDB?
PostgreSQL: The extensible, standards-first open-source relational database. TimescaleDB: PostgreSQL extension adding hypertables, columnar compression and continuous aggregates for time series. PostgreSQL is primarily a relational database; TimescaleDB is time-series. Licensing: PostgreSQL is open source (permissive) (PostgreSQL License); TimescaleDB is source-available (Apache-2.0 core + Timescale License (TSL) for advanced features). Horizontal scaling is addon in PostgreSQL and none in TimescaleDB.
When should I choose PostgreSQL over TimescaleDB?
Choose PostgreSQL for general-purpose application backend, SaaS multi-tenant data and geospatial applications with PostGIS. Choose TimescaleDB for IoT and sensor data joined with relational metadata; financial tick and market data analytics in SQL; and product and application metrics dashboards.
Is PostgreSQL or TimescaleDB more popular?
PostgreSQL ranks #1 on the WhichDB Score (93.2/100) and TimescaleDB ranks #34 (47.1/100). Popularity is not fit: check the requirements that matter for your project.
Are PostgreSQL and TimescaleDB open source?
Yes. PostgreSQL is open source. License: PostgreSQL License. Not in the OSI sense. TimescaleDB is source-available: you can read the code, but the license restricts some uses, typically offering it as a competing managed service. License: Apache-2.0 core + Timescale License (TSL) for advanced features.