[GENERAL] XML Support

[Essam Mansour]

Hi Everybody,

In my research project, I need a DBMS that supports XML storage and retrieval, and provides ECA rule support.
Currently, I am using Oracle 10g. However, I am interested in using Open Sources DB.

I am looking for a document addressing the XML support in the current Postgresql release (8.1.4).
I would like to know
 - whether Postgresql DB could be used as XML Repository or not?
 - Whether Postgresql DB support the XQuery or SQL/XML or not?
 - if Yes, could I write triggers combined with SQL/XML statement or XQuery statement?

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Regards,

Essam Mansour