Not sure about the CLA process, but the database is already under a restrictive, proprietary license:
## Free Trial
Use to evaluate whether the software suits a particular
application for less than 32 consecutive calendar days, on
behalf of you or your company, is use for a permitted purpose.
It's not really clear what this means (what is a permitted purpose?), but it seems the intent is that after 32 days, you are expected to pay up. Or at least prepare for a future when the infrastructure to charge customers is in place (if it isn't there yet).
Thanks. I think that only covers the commercial bits they run themselves though:
"The entire database with all its features (including the enterprise ones) is licensed under the Apache License 2.0
The binaries that contain -managed in the artifact and help run a managed service are licensed under the Polyform Free Trial License 1.0.0."
It's not really clear what this means (what is a permitted purpose?), but it seems the intent is that after 32 days, you are expected to pay up. Or at least prepare for a future when the infrastructure to charge customers is in place (if it isn't there yet).