Query processing in distributed ORION

Autor:	Wan-Lik Lee, Darrell Woelk, B. Paul Jenq, Won Kim
Rok vydání:	2005
Předmět:	Web search query Information retrieval Relational database Computer science View InformationSystems_DATABASEMANAGEMENT Query optimization Query language Data modeling Query expansion Object Query Language Data model Sargable Query by Example computer computer.programming_language RDF query language
Zdroj:	Lecture Notes in Computer Science ISBN: 3540522913 EDBT
DOI:	10.1007/bfb0022170
Popis:	In this paper we describe query processing strategies we have developed and implemented in the distributed version of the ORION object-oriented database system. The ORION query model is based on the ORION object-oriented data model. Further, we have adopted the response time as the primary objective function for query optimization. The query-processing strategies we have developed reflect our solutions to these requirements. In particular, our strategies are based on a dataflow execution model which represents a plan for executing a query concurrently at multiple sites. One important observation we bring out in our description of the ORION query-processing strategies is that most of the important techniques developed for optimizing and processing a relational query apply directly to an object-oriented query, despite the differences in the underlying data models.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::06c7f2ea8952f810db3dcc5d1d00dc40 https://doi.org/10.1007/bfb0022170 Zobrazit plný text záznamu