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gotimo | 7 months ago

probably [Aurora DSQL](https://aws.amazon.com/rds/aurora/dsql/) which released a couple of weeks ago

discuss

tneely|7 months ago

DSQL uses an internal service, Journal[1], for its mutli-region writes.

[1]: https://www.allthingsdistributed.com/2025/05/just-make-it-sc...

loginatnine|7 months ago

It's definitely DSQL with the multi-region active active feature[1].

[1]https://aws.amazon.com/rds/aurora/dsql/features/#topic-1

riknos314|7 months ago

DSQL only uses Postgres for the query processor layer, so it doesn't require a replication library within postgres itself. Definitely NOT from DSQL.

> We’re not using any of the storage or transaction processing parts of PostgreSQL, but are using the SQL engine, an adapted version of the planner and optimizer, and the client protocol implementation. [1]

Rather, DSQL seems to do its region replication using the distributed journal abstraction [2].

[1] https://brooker.co.za/blog/2024/12/04/inside-dsql.html [2] https://brooker.co.za/blog/2024/12/06/inside-dsql-cap.html

fizx|7 months ago

I thought dsql was distributed transactions. :thinking:

mjb|7 months ago

DSQL does use distributed transactions to offer active-active alongside strong consistency and isolation guarantees. Here's how: https://brooker.co.za/blog/2024/12/05/inside-dsql-writes.htm...