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IvorySQL vs Postgres Pro

IvorySQL: Apache-licensed PostgreSQL distribution with an Oracle-compatible mode, PL/iSQL and Oracle packages. Postgres Pro: Russian commercial PostgreSQL distribution with multimaster, 64-bit XIDs and compressed storage.

key differences

  • Licensing: IvorySQL is open source (permissive) (Apache License 2.0); Postgres Pro is proprietary (Postgres Pro commercial license).
  • Postgres Pro is built for larger datasets (≤ 1 PB) than IvorySQL (≤ 10 TB).
  • Only Postgres Pro has compression.

choose ivorysql for

  • +Open-source Oracle-to-PostgreSQL migrations
  • +Running Oracle-style PL/SQL code on Postgres
  • +Teams wanting Oracle syntax without commercial licensing

best at · OLTP, Geo

choose postgres-pro for

  • +Russian government and banking systems
  • +Oracle replacement under import-substitution programs
  • +Very large OLTP databases hitting XID wraparound limits
  • +HA clusters with synchronous multimaster

best at · OLTP, Geo, Search

IvorySQLApache-licensed PostgreSQL distribution with an Oracle-compatible mode, PL/iSQL and Oracle packages.
Postgres ProRussian commercial PostgreSQL distribution with multimaster, 64-bit XIDs and compressed storage.
overview
Primary model
Relational
Relational
Also supports
Document, Spatial
Document, Spatial
Type
Database engine
Database engine
Status
Active
Active
Developer
IvorySQL community (sponsored by HighGo Software)
Postgres Professional
First release
2021
2016
Latest version
5.6 (Sep 18, 2026)
Enterprise 18.6.0 (Aug 20, 2026)
License
Open source (permissive)Apache License 2.0
ProprietaryPostgres Pro commercial license
Free tier
✓
—
popularity
WhichDB Score
5.5
0.0
Rank
#384
#794
GitHub stars
1.1K
–
Stack Overflow questions
–
–
scale & guarantees
Comfortable data size
Medium (≤ 10 TB)
Large (≤ 1 PB)
Horizontal scaling
Addon
Addon
Multi-region
Read replicas
Active active
ACID
Full
Full
Consistency
Strong
Strong
Schema
Strict
Strict
Architecture
Single node, Primary replica, Client server
Single node, Primary replica, Multi primary, Client server
deployment
Self-hosted
✓
✓
Vendor-managed cloud
—
—
Serverless
—
—
Embedded
—
—
Edge
—
—
Clouds
–
–
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, PL/iSQL (Oracle-compatible)
SQL, PL/pgSQL
Client languages
C, Java, Python, JavaScript, Go, C#
C, Java, Python, JavaScript, Go, C#, PHP
Best for
OLTP, Geo
OLTP, Geo, Search
Add more to this comparisonNot sure either fits? Try smart match

IvorySQL vs Postgres Pro: FAQ

What is the difference between IvorySQL and Postgres Pro?

IvorySQL: Apache-licensed PostgreSQL distribution with an Oracle-compatible mode, PL/iSQL and Oracle packages. Postgres Pro: Russian commercial PostgreSQL distribution with multimaster, 64-bit XIDs and compressed storage. Licensing: IvorySQL is open source (permissive) (Apache License 2.0); Postgres Pro is proprietary (Postgres Pro commercial license). Postgres Pro is built for larger datasets (≤ 1 PB) than IvorySQL (≤ 10 TB). Only Postgres Pro has compression.

When should I choose IvorySQL over Postgres Pro?

Choose IvorySQL for open-source Oracle-to-PostgreSQL migrations, running Oracle-style PL/SQL code on Postgres and teams wanting Oracle syntax without commercial licensing. Choose Postgres Pro for russian government and banking systems; oracle replacement under import-substitution programs; and very large OLTP databases hitting XID wraparound limits.

Is IvorySQL or Postgres Pro more popular?

IvorySQL ranks #384 on the WhichDB Score (5.5/100) and Postgres Pro ranks #794 (0.0/100). Popularity is not fit: check the requirements that matter for your project.

Are IvorySQL and Postgres Pro open source?

Yes. IvorySQL is open source. License: Apache License 2.0. No. Postgres Pro is proprietary, closed-source software. License: Postgres Pro commercial license.