Talk for CitusCon 2023 on how Marten uses the Postgresql database to support a robust document database and event store feature set

1. Twisting Postgresql into a
Document Db & Event Store
April 2023

2. About Marten
• Open Source .NET Library
• Uses PostgreSQL for
Persistence
• ACID Compliant Document
Store
• Integrated Event Sourcing
• https://martendb.io

3. The Marten Community
3
• OSS with MIT License
• 100+ Contributors
• Core Team:
• Jeremy D. Miller
• Babu Annamalai
• Oskar Dudycz
• https://discord.gg/wb2EGP6s (Critter Stack)
• https://martendb.io

4. Why Postgresql?
• Outstanding JSON Support
• JavaScript in the Database
• Docker Friendly
• Hosting Options
• FOSS
• Vibrant Community
• Very Capable

5. Marten as Document Database
5

6. Event Sourcing
• A style of system persistence where each state
change is captured and stored as an explicit event
object

7. Advantages to
Event Sourcing
• Usage of Business Language
• Audit Log
• Temporal Querying / “Time Travel”
• Retrofitting Metrics
• Complement to CQRS
• Concurrency

8. Event
Store
Demo

9. Fast Web
Services

10. Future Plans
• MASSIVE SCALABILITY!
• Postgresql table sharding
• Leverage sql/json support