[GiorgioG]

For a vast majority of use cases 20TB is positively enormous.

[mplanchard]

RDS caps out at 64 TB unless you use Aurora, so 20 TB is totally manageable without sharding.

[returningfory2]

This product is for Postgres deployments that are so large they need to be sharded. For these use cases, I think 20TB is about normal.

[jeltz]

Yes. But for most workloads it is not much for PostgreSQL. You often will not have to shard at all.

[tingletech]

that article seems to suggest 20TB total over the dozen deployments in prod.

[happyopossum]

Sure, but 20TB in “the only database you need” is mere hours or minutes worth of data for many workflows.