Help Needed: Recovering Lost Data from Cloud SQL Beyond Backup Period

[thaiduong]

Hello everyone, we're facing a critical situation with data loss in our production Cloud SQL database. Several tables have been completely wiped, disrupting our users' operations. The data loss occurred about two weeks ago, but our automated backup retention only covers the last 7 days.

We've explored several recovery options:
1. Automated backups aren't helpful since they only go back 7 days
2. Our most recent manual backup is from a year ago, which is too outdated to be useful
3. We have CSV files, but they're even older - from 5 years ago

What we're wondering is: Does Google retain any data beyond the standard backup period that could be accessed through Enhanced Support (https://cloud.google.com/support)? Is it worth reaching out to Google's customer support to see if they can help recover this data?

(We want to make sure they are able to help because upgrading to Enhanced Support costs us extra money)

Any advice or experience with similar situations would be greatly appreciated. Time is crucial as this is affecting our production environment.

P.S: Our configs: