3. The method of claim 2 wherein the at least one index property describes how the plurality of descendant elements covered by the sub-path definition should be indexed.
2. The method of claim 1 wherein each path-value pair in the inverted multi-path index is generated when the indexed element is indexed according to a sub-path definition covering the indexed element, wherein the sub-path definition is included in a multi-path index definition associated with the inverted multi-path index, and covers a plurality of elements descending from a root element and includes at least one index property.