xsd2pgschema
Relational database replication tool based on XML Schema
...File conversion from XML to CSV, TSV, or JSON is possible as well as mapping XML Schema to JSON Schema.
Obtained PostgreSQL database can be optimized at user's discretion. Moreover, differential update, and XPath query evaluation over PostgreSQL are possible.
PgSchema server, serialized relational data model server, can be used to speed up the analysis of complex XML Schema.