Migrate from SQL Server to PostgreSQL

We would like to move our local instance of SonarQube (running on SQL Server) to an AWS instance using Docker and PostgreSQL.
Is there any path for this migration?
Thank you.

It is not a straightforward migration, so we offer a tool for it but only for customers with commercial support as it almost always requires a lot of guidance. Details here if you’re interested and/or if you happen to have a commercial support contract.

What is the minimum level of commercial support to get the DB migration tool?

Also, we plan to migrate from 7.9.3 LTS (with SQL Server) to 8.9.9 (AWS RDS PostgreSQL) and eventually new 9.x LTS. Would we migrate 7.x to Postgres and then to 8.x, or would we migrate to 8.x and then Postgres?
One of the reasons I’m asking is because commercial support is in the budget for next year but 8.x upgrade we were hoping to do sooner (but Postgres RDS came up as substantially more economical option).