AWS Bites 145. We Tried Amazon DSQL So You Don’t Have To (But You Might Want To)
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Jun 26, 2025 Dive into the world of Amazon Aurora DSQL, where a serverless SQL database could change the game for developers. Discover its unique features like optimistic concurrency control and the challenges posed by the lack of foreign key constraints. Learn about building a fast API with Node.js while measuring performance and optimizing for SaaS. Plus, explore how Rust can enhance DSQL connections and the cost implications of its architecture. Is DSQL the right choice for new applications? Tune in to find out!
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Aurora DSQL as Serverless SQL
- Amazon Aurora DSQL offers automatic, virtually infinite scaling and high availability with minimal management.
- It prioritizes simplicity and serverless experience unlike traditional relational databases.
DSQL Postgres Compatibility & Authentication
- Aurora DSQL is Postgres 16 compatible with optimistic concurrency control to avoid locking delays.
- It only supports AWS IAM authentication and lacks traditional username-password or Kerberos options.
Beware DSQL Feature Limitations
- Avoid Aurora DSQL if your app requires foreign keys, traditional indexes, triggers, or stored procedures as these are not supported.
- Adjust your ORM or migration tools carefully to handle asynchronous index creation and lack of some Postgres features.