We usually had the option to dump the openstack database if the sosreport profile matched OpenStack [1].
For this reason must-gather should be extended to get the dump of the database similar to what has been done in [2].

[1] https://github.com/sosreport/sos/blob/main/sos/collector/clusters/openstack.py
[2] https://github.com/sosreport/sos/blob/main/sos/report/plugins/openstack_database.py