Index structure of metadata, method for providing indices of metadata, and metadata searching method and apparatus using the indices of metadata

摘要

A method of providing an index structure for metadata divided into fragments comprises providing a list of multi-keys corresponding to a combination of fields of the metadata and location information for defining a multi-key of the list. A method of providing an index structure for metadata divided into fragments comprises providing a key-list section comprising a list of multi-keys corresponding to a combination of fields of the metadata, providing a key index section and providing a sub key index section wherein for a multi-key of the key index the sub key index comprises a range of values of the multi-key and identification information on the ones of the fragments of metadata corresponding to the values of the multi-key and the key index section comprises representative key values representing the representative ranges of values of the multi-key. (62) Divided out of 533161