override persistence.xml in geronimo plan

[Phani Madgula]

Hi,
I saw a related JIRA created for this issue. Can you explain what can be
overridden in geronimo plan and how? Is it for only <jta-datasource> and
<non-jta-datasource>??
https://issues.apache.org/jira/browse/GERONIMO-3308

Thanks
Phani