This was true for RDS serverless v1 which scaled to 0 but is no longer offered. V2 requires a minimum 0.5 ACU hourly commit ($40+ /mo).
V2 scales to zero as of last year.
https://aws.amazon.com/blogs/database/introducing-scaling-to...
It only scales down after a period of inactivity though - it’s not pay-per-request like other serverless offerings. DSQL looks to be more cost effective for small projects if you can deal with the deviations from Postgres.
V2 scales to zero as of last year.
https://aws.amazon.com/blogs/database/introducing-scaling-to...
It only scales down after a period of inactivity though - it’s not pay-per-request like other serverless offerings. DSQL looks to be more cost effective for small projects if you can deal with the deviations from Postgres.