The '.' cannot be permitted in the database table names used for JDBC object store.

The EAP OpenShift scripts provides a way to configure the transaction subsystem to work with a JDBC object store. In such case there is configured a database table name where Narayana transaction log is persisted in. The database table name is prefixed with os and then follow-up with value of env variable JBOSS_NODE_NAME[1].
(JBOSS_NODE_NAME is developed based on the hostname stripped to 23 characters[2]).

The particular databases restricts how the table can be named. Oracle does not permit hyphens and they are removed[1]. The PostgreSQL consider dots as a delimiter of table name and namespace. The tablename itself works incorrectly when contains dots.

[1] https://github.com/wildfly/wildfly-cekit-modules/blob/0.18.10/jboss/container/wildfly/launch/datasources/added/launch/tx-datasource.sh#L63
[2] https://github.com/wildfly/wildfly-cekit-modules/blob/0.18.10/jboss/container/wildfly/launch/os/node-name/added/launch/openshift-node-name.sh