How DSQL makes sure sequences scale
3 months ago
- #database
- #scalability
- #postgres
- DSQL introduces scalable sequence support, addressing the limitations of traditional Postgres sequences in distributed environments.
- Sequences in DSQL can be created with `CACHE` values to optimize performance, with recommendations for `CACHE=1` for low throughput and `CACHE>=65536` for high scalability.
- Experiments show significant performance improvements with high `CACHE` values, especially in bulk inserts and high-concurrency scenarios.
- UUIDs remain a recommended alternative for applications prioritizing simplicity and avoiding sequence bottlenecks.
- DSQL's architecture allows sequences to scale horizontally, leveraging distributed storage and compute resources to minimize contention.