aggregate query processing meaning

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Cost-Based Optimization of Aggregation Star Queries on

ceur-ws.org/Vol-58/tsois.pdf

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You Can Stop Early with COLA: Online Processing of Aggregate

idke.ruc.edu.cn/publications/2012/fp134-shi.pdf

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Feb 1, 2008 hierarchies that favor the data aggregation process [1]. Several techniques and . we define the notion of generic geometric aggregate queries.

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Semantics and Evaluation Techniques for Window Aggregates in

than existing window aggregate query evaluation options that retain and reprocess For applications monitoring and processing streams, window aggregates 

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Aggregations | Elasticsearch Reference [2.3] | Elastic

By the end of the aggregation process, we'll end up with a list of buckets - each one with a set of documents that "belong" to it. In this scenario, the sub- aggregations you define on the bucketing aggregation level will be . Query DSL .

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This paper is about anti-tamper databases, where the database contents are encrypted for security in a way to allow efficient query processing directly on the 

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Approximate Query Processing Using Wavelets

and Wang). • effective for aggregate queries even at high dimensions. • limited in query processing scope (only range-sum queries) .. Selection : Definition 

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When Should Approximate Query Processing Be Used? - High

highscalability.com/blog/2016/2/25/when-should-approximate-query-processing-be-used.html

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CubeCache: Efficient and Scalable Processing of OLAP - CERCS

particular, CubeCache can perform aggregation queries in parallel at different peer . a single, centralized warehouse means that data must be aggregated in a 

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Anti-Tamper Databases: Processing Aggregate Queries over

ieeexplore.ieee.org

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Datalog and Recursive Query Processing - a blog

blogs.evergreen.edu/sosw/files/2014/04/Green-Vol5-DBS-017.pdf

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processing of aggregation star queries changes dramatically creating new optimization define such a method we provide the means to estimate the cost of the 

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Range Aggregate Processing in Spatial Databases - Department of

Abstract—A range aggregate query returns summarized information about the points falling in a .. all * are replaced by 4) meaning that it will not be modified.

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aggregation for processing multiple aggregate queries. Mul- tiple “aggregate” . means the I/O cost for sampling is significantly reduced. In fact, the “gain by 

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guage, recursive query processing, and optimization techniques. This To define a fixpoint-theoretic semantics of aggregate stratified pro- grams, we extend  

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lot of interest around approximate query processing (AQP) as a means data at Facebook fit in the aggregate memory of their data centers.

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Oct 29, 2012 of the final accurate query result, online processing of aggregate queries .. in table R to be the population, and the mean value of the popula-.

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Continuous Sampling for Online Aggregation Over Multiple Queries ∗

event.cwi.nl/SIGMOD-RWE/2010/13-2b21fa/paper.pdf

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Data Aggregation in Wireless Sensor Network - itfrindia.org

offer an increasingly Sensor nodes need less power for processing as compared to . The meaning of the query is detecting nodeid per five minutes in which 

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Spatial Aggregation: Data Model and Implementation

arxiv.org/pdf/0707.4304

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