Anyone tried H2 Database migration with 3rd party tool?

[mgonzalez (Miguel)]

I have managed to migrate from H2 to PosgreSQL with version 8.9.10 LTS:

Upgrade sonarqube to psql without data loss from h2 database

Hi i want upgrade sonarqube db to psql from existing h2 db without any data loss how should i get my h2 data into psql db please need correct way to chnage db withou any data loss from h2 db.