Postgres DB is free, yes, but limited resources for support. Please add a SQL Express version to the QEM data analytic and Compose software as an option. There are way more SQL Server support resources than postgres.
We have had issues with our postgres DB during this latest upgrade. Have already spent more than 8 hours trying to debug the connection issue. If this was a SQL Express DB, I would have had it resolved within minutes.
Thank you
Lori Halsey