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DATAKON 2001
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Softwarové noviny
Optimizing Meta Queries in Databases
Wataru Matsumoto1, Takao Miura1, Shingo Kashikawa1 and Isamu Shioya2
1 Dept. of Elect. & Elect. Engr., Hosei University
Kajinocho, Koganei, Tokyo, Japan
2 SANNO University
Kamikasuya, Isehara, Kanagawa, Japan
Abstract. This paper discusses query optimization of extended relational expressions on meta queries, and propose several rewriting rules to optimize meta queries under some restricted conditions. They are heavily utilizing signatures, meta knowledge, in our experimental database system HOME.
Keywords: meta queries, optimization, signatures.