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Olli Pekka Kostamaa

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Publication

Featured researches published by Olli Pekka Kostamaa.

Archive | 2009

System, method, and computer-readable medium for dynamic detection and management of data skew in parallel join operations

Yu Xu; Olli Pekka Kostamaa; Xin Zhou

Archive | 2008

System, method, and computer-readable medium for optimizing processing of queries featuring maximum or minimum equality conditions in a parallel processing system

Yu Xu; Olli Pekka Kostamaa

Archive | 2008

System, method, and computer-readable medium for reducing row redistribution costs for parallel join operations

Yu Xu; Olli Pekka Kostamaa; Xin Zhou

Archive | 2008

SYSTEM, METHOD, AND COMPUTER-READABLE MEDIUM FOR OPTIMIZING PROCESSING OF DISTINCT AND AGGREGATION QUERIES ON SKEWED DATA IN A DATABASE SYSTEM

Yu Xu; Olli Pekka Kostamaa

Archive | 2003

Statistical representation of skewed data

Bhashyam Ramesh; Olli Pekka Kostamaa

Archive | 2009

SYSTEM, METHOD AND COMPUTER-READABLE MEDIUM FOR DYNAMIC SKEW AVOIDANCE FOR GENERIC QUERIES

Xin Zhou; Olli Pekka Kostamaa

Archive | 2006

Runtime resource sensitive and data driven optimization

Bhashyam Ramesh; Olli Pekka Kostamaa

Archive | 2008

SYSTEM, METHOD, AND COMPUTER-READABLE MEDIUM FOR OPTIMIZING THE PERFORMANCE OF OUTER JOINS

Yu Xu; Olli Pekka Kostamaa

Archive | 2011

Techniques for accessing a parallel database system via external programs using vertical and/or horizontal partitioning

Yu Xu; Olli Pekka Kostamaa

Archive | 2008

System, method, and computer-readable medium for duplication optimization for parallel join operations on similarly large skewed tables

Xin Zhou; Olli Pekka Kostamaa

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Collaboration

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Yu Xu

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Xin Zhou

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Bhashyam Ramesh

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Bibhu Ranjan Priyadarshi

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Gary Roberts

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Grace Au

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Guilian Wang

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Jian Wen

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John R. Catozzi

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Steven B. Cohen

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