whichdb
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Citus vs Nile

Citus: Postgres extension that shards tables across nodes for multi-tenant SaaS and real-time analytics. Nile: Serverless Postgres that makes tenants a first-class primitive, with per-tenant isolation and placement.

key differences

  • Licensing: Citus is open source (copyleft) (GNU AGPL v3); Nile is proprietary (Proprietary (managed service; SDKs Apache-2.0)).
  • Citus is built for larger datasets (≤ 1 PB) than Nile (≤ 10 TB).
  • Only Citus has change data capture, materialized views, columnar storage, compression, online schema changes.
  • Only Nile has encryption at rest.
  • Nile has a serverless option; Citus does not.

choose citus for

  • +Multi-tenant B2B SaaS sharded by customer
  • +Real-time analytics dashboards over event data
  • +Time-series and IoT ingestion with rollups
  • +Scaling an existing Postgres app without changing databases

best at · OLTP, Real-time analytics, HTAP

choose nile for

  • +B2B SaaS with many customer organizations
  • +Per-tenant AI features using pgvector
  • +Moving large customers to isolated infrastructure
  • +Compliance-driven tenant data placement

best at · OLTP, Vector search, RAG

CitusPostgres extension that shards tables across nodes for multi-tenant SaaS and real-time analytics.
NileServerless Postgres that makes tenants a first-class primitive, with per-tenant isolation and placement.
overview
Primary model
Relational
Relational
Also supports
Document, Columnar / OLAP, Spatial
Document, Vector
Type
Extension
Managed service
Status
Active
Active
Developer
Microsoft (Citus Data)
Nile
First release
2016
2023
Latest version
14.3.0 (Oct 23, 2026)
–
License
Open source (copyleft)GNU AGPL v3
ProprietaryProprietary (managed service; SDKs Apache-2.0)
Free tier
✓
✓
popularity
WhichDB Score
21.1
9.2
Rank
#144
#316
GitHub stars
12.8K
1.1K
Stack Overflow questions
149
–
scale & guarantees
Comfortable data size
Large (≤ 1 PB)
Medium (≤ 10 TB)
Horizontal scaling
Native
Native
Multi-region
None
None
ACID
Full
Full
Consistency
Strong
Strong
Schema
Strict
Strict
Architecture
Distributed, Client server
Serverless, Distributed, Shared storage
deployment
Self-hosted
✓
—
Vendor-managed cloud
✓
✓
Serverless
—
✓
Embedded
—
—
Edge
—
—
Clouds
Azure
AWS
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, PL/pgSQL
SQL, PL/pgSQL
Client languages
Java, Python, JavaScript, Go, Ruby, C#, PHP, Rust
JavaScript, TypeScript, Python, Go, Java
Best for
OLTP, Real-time analytics, HTAP, Time-series
OLTP, Vector search, RAG
Add more to this comparisonNot sure either fits? Try smart match

Citus vs Nile: FAQ

What is the difference between Citus and Nile?

Citus: Postgres extension that shards tables across nodes for multi-tenant SaaS and real-time analytics. Nile: Serverless Postgres that makes tenants a first-class primitive, with per-tenant isolation and placement. Licensing: Citus is open source (copyleft) (GNU AGPL v3); Nile is proprietary (Proprietary (managed service; SDKs Apache-2.0)). Citus is built for larger datasets (≤ 1 PB) than Nile (≤ 10 TB). Only Citus has change data capture, materialized views, columnar storage, compression, online schema changes.

When should I choose Citus over Nile?

Choose Citus for multi-tenant B2B SaaS sharded by customer; real-time analytics dashboards over event data; and time-series and IoT ingestion with rollups. Choose Nile for B2B SaaS with many customer organizations, per-tenant AI features using pgvector and moving large customers to isolated infrastructure.

Is Citus or Nile more popular?

Citus ranks #144 on the WhichDB Score (21.1/100) and Nile ranks #316 (9.2/100). Popularity is not fit: check the requirements that matter for your project.

Are Citus and Nile open source?

Yes. Citus is open source. License: GNU AGPL v3. No. Nile is proprietary, closed-source software.