EVALUATING XML FULL TEXT SEARCH

Processes, machines, and stored instructions are provided for storing posting lists for tokens in XML documents and using the posting lists to process queries. For each occurrence of a token in the XML documents, a document processor adds an entry to a list for the token. The entry for the token maps the token to documents or nodes within the documents where the tokens can be found. The document processor may also detect tags in the XML documents and, for each occurrence of a tag, add an entry to a list for the tag. The entry for the tag specifies a range of locations covered by the tag. A query processor may then receive a full text query for evaluation against XML documents, and the query processor may determine a result set for the query using the lists for the tokens and/or the lists for the tags.