发明名称 Inverted index system and method for numeric attributes
摘要 A system and method is provided for generating an inverted index and processing search queries using the inverted index. To increase efficiency for queries having multiple numeric range conditions, numeric attributes are tokenized into a plurality of tokens based on their binary value. The tokens become keys in the inverted index. A numeric range query is translated into a query on multiple tokens and combining two or more range queries on different attributes becomes a simple merge of document identification lists.
申请公布号 US7080091(B2) 申请公布日期 2006.07.18
申请号 US20020160763 申请日期 2002.05.31
申请人 ORACLE INTERNATIONAL CORPORATION 发明人 MATSUDA YASUHIRO
分类号 G06F17/30;G06F7/00 主分类号 G06F17/30
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