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    SIGMOD
    1996
    ACM
    132views Database» more  SIGMOD 1996»
    Cost-Based Optimization for Magic: Algebra and Implementation
    13 years 8 months ago
    Cost-Based Optimization for Magic: Algebra and Implementation
    Download  db.cs.berkeley.edu
    Magic sets rewriting is a well-known optimization heuristic for complex decision-support queries. There can be many variants of this rewriting even for a single query, which diffe...
    Praveen Seshadri, Joseph M. Hellerstein, Hamid Pir...
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    VLDB
    1998
    ACM
    82views Database» more  VLDB 1998»
    Reducing the Braking Distance of an SQL Query Engine
    13 years 8 months ago
    Reducing the Braking Distance of an SQL Query Engine
    Download  www-db.in.tum.de
    In a recent paper, we proposed adding a STOP AFTER clause to SQL to permit the cardinality of a query result to be explicitly limited by query writers and query tools. We demonstr...
    Michael J. Carey, Donald Kossmann
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