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Looking for : query plan
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Plan Generator Overview
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The Plan Generator is responsible for generating query plans in C-Store. ... There is always one root node. This is an example of a query plan. ...
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lantian.doc
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The query optimizer is a module that examines equivalent query plans and chooses the plan that needs the least amount of cost. ... A search space of plans : the set of all plans that can be used to answer a given query. ...
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MS Word Version.doc
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In broad terms, the purpose of a database query optimizer is to find a good evaluation plan for any given query. ... every possible query evaluation plan and assign each of these plans a ...
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MS Word Version.doc.doc
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Thus, the point of the query optimizer is to select the least computationally expensive query evaluation plan. In the course of considering different query evaluation plans, the optimizer must analyze how the data interacts with the various operators that exist in relational algebra. ...
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RAKESH MALHOTRA.doc
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On one hand there is the traditional database field of structured data, query languages, algebras, logical and physical plans while on the other hand is the new standard of the eXtensible Markup Language (XML) for storing and disseminating semi-structured data over the web. ...
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Multi - objective query optimization in a P2P Database System
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As a matter of fact, we should be able to rank the peers contributing to a plan, and thus the plans themselves, according to data quality metrics allowing to discard plans producing poor quality query results (according to a threshold either set by the user or the system) ...
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