[SahAssar]

Aurora is postgres but with a different storage layer, no? It uses the postgres engine, which other postgres-compatible databases like cockroach do not, right?

[tudorg]

That’s right, Aurora Postgres is quite close to vanilla Postgres. Aurora DSQL is a different story though.

For a more scientific answer, there is this project: https://pgscorecard.com/

Note that Aurora scores 93% while Cockroach scores only 40%.

[SahAssar]

I actually wasn't aware of Aurora DSQL, that's incredibly bad product naming.