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CUBRID vs PostgreSQL

CUBRID: Korean open-source RDBMS with built-in HA and Oracle-like SQL, common in Korean public sector. PostgreSQL: The extensible, standards-first open-source relational database.

key differences

  • Horizontal scaling is manual in CUBRID and addon in PostgreSQL.
  • Only CUBRID has encryption at rest.
  • Only PostgreSQL has full-text search, vector search, geospatial, change data capture, materialized views.

choose cubrid for

  • +Korean public-sector and enterprise systems
  • +Oracle-to-open-source migrations
  • +Web services needing built-in HA without extra tooling

best at · OLTP, Content

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

CUBRIDKorean open-source RDBMS with built-in HA and Oracle-like SQL, common in Korean public sector.
PostgreSQLThe extensible, standards-first open-source relational database.
overview
Primary model
Relational
Relational
Also supports
–
Document, Spatial
Type
Database engine
Database engine
Status
Active
Active
Developer
CUBRID Corporation
PostgreSQL Global Development Group
First release
2008
1996
Latest version
11.4.6 (Sep 10, 2026)
18.6 (Aug 13, 2026)
License
Open source (permissive)Apache License 2.0 (engine), BSD (APIs/connectors)
Open source (permissive)PostgreSQL License
Free tier
✓
✓
popularity
WhichDB Score
11.8
93.2
Rank
#277
#1
GitHub stars
291
22.6K
Stack Overflow questions
13
178.8K
scale & guarantees
Comfortable data size
Medium (≤ 10 TB)
Medium (≤ 10 TB)
Horizontal scaling
Manual
Addon
Multi-region
None
Read replicas
ACID
Full
Full
Consistency
Strong
Strong
Schema
Strict
Strict
Architecture
Client server, Primary replica, Single node
Single node, Primary replica, Client server
deployment
Self-hosted
✓
✓
Vendor-managed cloud
—
—
Serverless
—
—
Embedded
—
—
Edge
—
—
Clouds
–
AWS, Google Cloud, Azure, Oracle Cloud, IBM Cloud, Alibaba Cloud
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/CSQL
SQL, PL/pgSQL
Client languages
Java, C, PHP, Python, C#, Node.js
C, Java, Python, JavaScript, Go, Rust, C#, Ruby
Best for
OLTP, Content
OLTP, Geo, Search, Content
Add more to this comparisonNot sure either fits? Try smart match

CUBRID vs PostgreSQL: FAQ

What is the difference between CUBRID and PostgreSQL?

CUBRID: Korean open-source RDBMS with built-in HA and Oracle-like SQL, common in Korean public sector. PostgreSQL: The extensible, standards-first open-source relational database. Horizontal scaling is manual in CUBRID and addon in PostgreSQL. Only CUBRID has encryption at rest. Only PostgreSQL has full-text search, vector search, geospatial, change data capture, materialized views.

When should I choose CUBRID over PostgreSQL?

Choose CUBRID for korean public-sector and enterprise systems; oracle-to-open-source migrations; and web services needing built-in HA without extra tooling. Choose PostgreSQL for general-purpose application backend, SaaS multi-tenant data and geospatial applications with PostGIS.

Is CUBRID or PostgreSQL more popular?

PostgreSQL ranks #1 on the WhichDB Score (93.2/100) and CUBRID ranks #277 (11.8/100). Popularity is not fit: check the requirements that matter for your project.

Are CUBRID and PostgreSQL open source?

Yes. CUBRID is open source. License: Apache License 2.0 (engine), BSD (APIs/connectors). Yes. PostgreSQL is open source. License: PostgreSQL License.