XQL 98 lacked:

• Selection Functionality

  • comparison operators for fulltext (in progress)
  • regular path expressions for hierarchy (only // for recursive descent and * for matching all nodes in a search context)

• Restructuring

  • Suggestions: return operators (SAG), XSLT (W3C), Application Level (e.g. WebMethods)

• Combination

  • joins; Suggestions: see below

• Graphs

  • no navigation along ID/IDREF
  • no multi-documents (dereferencing URIs)
  • Suggestions: docref, ref, keyref, idref

• Delegation

  • external functions
  • wrappers

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