When saving data nodes using:

saveData(dataspaceName, anchorName, parentNodeXpath, nodeData, observedTimestamp)

The parentNodeXpath is not normalized. This results in data nodes being written to the database in a non-normal form, meaning those nodes cannot be operated on at all - this affects all operations like get, query, update, delete.

For example, if saveData is called like this:

notNormalizedParentXpath = '/bookstore/categories[ @code="1"]'
json = '"books" : [ { "title": "New Book" } ]'
saveData(dataspaceName, anchorName, notNormalizedParentXpath, json, now);

The fragment will be written to the DB with xpath:

/bookstore/categories[ @code="1"]/books[@title='New Book']