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IBM Informix vs TimescaleDB

IBM Informix: Low-maintenance embeddable RDBMS with built-in TimeSeries, still quietly running retail and telco systems. TimescaleDB: PostgreSQL extension adding hypertables, columnar compression and continuous aggregates for time series.

key differences

  • IBM Informix is primarily a relational database; TimescaleDB is time-series.
  • Licensing: IBM Informix is proprietary (Proprietary commercial license); TimescaleDB is source-available (Apache-2.0 core + Timescale License (TSL) for advanced features).
  • Horizontal scaling is addon in IBM Informix and none in TimescaleDB.
  • Only IBM Informix has geospatial, change data capture, encryption at rest, online schema changes.
  • Only TimescaleDB has vector search, materialized views, ttl / expiry, pub/sub, columnar storage.

choose ibm-informix for

  • +Retail store and point-of-sale back ends
  • +Smart-meter and utility time-series data
  • +Telecom provisioning systems
  • +Embedded databases inside OEM appliances

best at · OLTP, Time-series, IoT

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

IBM InformixLow-maintenance embeddable RDBMS with built-in TimeSeries, still quietly running retail and telco systems.
TimescaleDBPostgreSQL extension adding hypertables, columnar compression and continuous aggregates for time series.
overview
Primary model
Relational
Time-Series
Also supports
Time-Series, Document, Spatial
Relational, Columnar / OLAP
Type
Database engine
Extension
Status
Active
Active
Developer
IBM (co-developed with HCLSoftware)
TigerData (formerly Timescale)
First release
1981
2017
Latest version
15.0.1.18 (Sep 30, 2026)
2.31.0 (Oct 20, 2026)
License
ProprietaryProprietary commercial license
Source-availableApache-2.0 core + Timescale License (TSL) for advanced features
Free tier
✓
✓
popularity
WhichDB Score
26.0
47.1
Rank
#115
#34
GitHub stars
–
23.8K
Stack Overflow questions
2.3K
775
scale & guarantees
Comfortable data size
Medium (≤ 10 TB)
Medium (≤ 10 TB)
Horizontal scaling
Addon
None
Multi-region
Active active
Read replicas
ACID
Full
Full
Consistency
Strong
Strong
Schema
Strict
Strict
Architecture
Client server, Primary replica, Multi primary, Shared storage
Single node, Primary replica, Client server
deployment
Self-hosted
✓
✓
Vendor-managed cloud
—
✓
Serverless
—
—
Embedded
—
—
Edge
—
—
Clouds
–
AWS, Azure
capabilities
Transactions
✓
✓
Joins
✓
✓
Secondary indexes
✓
✓
Full-text search
✓
✓
Vector search
—
✓
Geospatial
✓
—
JSON
✓
✓
Change data capture
✓
—
Triggers
✓
✓
Stored procedures
✓
✓
Materialized views
—
✓
TTL / expiry
—
✓
Pub/Sub
—
✓
Columnar storage
—
✓
In-memory
—
—
Durable persistence
✓
✓
Compression
✓
✓
Encryption at rest
✓
—
Role-based access
✓
✓
Time travel
—
—
Branching
—
✓
Online schema changes
✓
—
Streaming ingest
—
—
Offline sync
—
—
Runs in WebAssembly
—
—
interfaces
Query languages
SQL, SPL
SQL, PL/pgSQL
Client languages
C, Java, Python, JavaScript, C#, ESQL/C
C, Java, Python, JavaScript, Go, Rust, C#, Ruby
Best for
OLTP, Time-series, IoT, Embedded
Time-series, Real-time analytics, IoT, Observability
Add more to this comparisonNot sure either fits? Try smart match

IBM Informix vs TimescaleDB: FAQ

What is the difference between IBM Informix and TimescaleDB?

IBM Informix: Low-maintenance embeddable RDBMS with built-in TimeSeries, still quietly running retail and telco systems. TimescaleDB: PostgreSQL extension adding hypertables, columnar compression and continuous aggregates for time series. IBM Informix is primarily a relational database; TimescaleDB is time-series. Licensing: IBM Informix is proprietary (Proprietary commercial license); TimescaleDB is source-available (Apache-2.0 core + Timescale License (TSL) for advanced features). Horizontal scaling is addon in IBM Informix and none in TimescaleDB.

When should I choose IBM Informix over TimescaleDB?

Choose IBM Informix for retail store and point-of-sale back ends; smart-meter and utility time-series data; and telecom provisioning systems. 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 IBM Informix or TimescaleDB more popular?

TimescaleDB ranks #34 on the WhichDB Score (47.1/100) and IBM Informix ranks #115 (26.0/100). Popularity is not fit: check the requirements that matter for your project.

Are IBM Informix and TimescaleDB open source?

No. IBM Informix is proprietary, closed-source software. 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.