whichdb
vs

EDB Postgres Advanced Server vs IvorySQL

EDB Postgres Advanced Server: EnterpriseDB's PostgreSQL with deep Oracle compatibility: PL/SQL packages, DBMS_* and TDE. IvorySQL: Apache-licensed PostgreSQL distribution with an Oracle-compatible mode, PL/iSQL and Oracle packages.

key differences

  • Licensing: EDB Postgres Advanced Server is proprietary (EDB commercial subscription); IvorySQL is open source (permissive) (Apache License 2.0).
  • EDB Postgres Advanced Server is built for larger datasets (≤ 1 PB) than IvorySQL (≤ 10 TB).
  • Only EDB Postgres Advanced Server has vector search, compression, encryption at rest.

choose edb-postgres-advanced-server for

  • +Migrating Oracle applications to Postgres
  • +Regulated workloads needing TDE and auditing
  • +Enterprises wanting vendor-backed Postgres with 24x7 support
  • +Always-on clusters with EDB Postgres Distributed

best at · OLTP, Geo, Search

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

EDB Postgres Advanced ServerEnterpriseDB's PostgreSQL with deep Oracle compatibility: PL/SQL packages, DBMS_* and TDE.
IvorySQLApache-licensed PostgreSQL distribution with an Oracle-compatible mode, PL/iSQL and Oracle packages.
overview
Primary model
Relational
Relational
Also supports
Document, Spatial
Document, Spatial
Type
Database engine
Database engine
Status
Active
Active
Developer
EnterpriseDB (EDB)
IvorySQL community (sponsored by HighGo Software)
First release
2005
2021
Latest version
18.6 (Aug 13, 2026)
5.6 (Sep 18, 2026)
License
ProprietaryEDB commercial subscription
Open source (permissive)Apache License 2.0
Free tier
—
✓
popularity
WhichDB Score
12.9
5.5
Rank
#260
#384
GitHub stars
–
1.1K
Stack Overflow questions
105
–
scale & guarantees
Comfortable data size
Large (≤ 1 PB)
Medium (≤ 10 TB)
Horizontal scaling
Addon
Addon
Multi-region
Active active
Read replicas
ACID
Full
Full
Consistency
Strong, Eventual
Strong
Schema
Strict
Strict
Architecture
Single node, Primary replica, Multi primary, Client server
Single node, Primary replica, Client server
deployment
Self-hosted
✓
✓
Vendor-managed cloud
✓
—
Serverless
—
—
Embedded
—
—
Edge
—
—
Clouds
AWS, Azure, Google 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/pgSQL, SPL (Oracle-compatible PL/SQL)
SQL, PL/pgSQL, PL/iSQL (Oracle-compatible)
Client languages
C, Java, Python, .NET, JavaScript, Go, PHP
C, Java, Python, JavaScript, Go, C#
Best for
OLTP, Geo, Search
OLTP, Geo
Add more to this comparisonNot sure either fits? Try smart match

EDB Postgres Advanced Server vs IvorySQL: FAQ

What is the difference between EDB Postgres Advanced Server and IvorySQL?

EDB Postgres Advanced Server: EnterpriseDB's PostgreSQL with deep Oracle compatibility: PL/SQL packages, DBMS_* and TDE. IvorySQL: Apache-licensed PostgreSQL distribution with an Oracle-compatible mode, PL/iSQL and Oracle packages. Licensing: EDB Postgres Advanced Server is proprietary (EDB commercial subscription); IvorySQL is open source (permissive) (Apache License 2.0). EDB Postgres Advanced Server is built for larger datasets (≤ 1 PB) than IvorySQL (≤ 10 TB). Only EDB Postgres Advanced Server has vector search, compression, encryption at rest.

When should I choose EDB Postgres Advanced Server over IvorySQL?

Choose EDB Postgres Advanced Server for migrating Oracle applications to Postgres; regulated workloads needing TDE and auditing; and enterprises wanting vendor-backed Postgres with 24x7 support. 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.

Is EDB Postgres Advanced Server or IvorySQL more popular?

EDB Postgres Advanced Server ranks #260 on the WhichDB Score (12.9/100) and IvorySQL ranks #384 (5.5/100). Popularity is not fit: check the requirements that matter for your project.

Are EDB Postgres Advanced Server and IvorySQL open source?

No. EDB Postgres Advanced Server is proprietary, closed-source software. License: EDB commercial subscription. Yes. IvorySQL is open source. License: Apache License 2.0.