Support querying of the XML documents (as read-only selects,
Writing should be implemented as a different feature that brings its own set of challenges.)
To consider is reading of the trivial, schema-less, XML documents, DTD-oriented ones and also of schema-defined ones.
Also, we should consider direct querying vs. using converter tools to change the representation from XML to JSON, CSV, etc.
Design and Implementation discussion, notes, ideas and implementation suggestions should be captured here:
(no vandalism, please)