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- W2964297918 abstract "A well-established technique for capturing database provenance as annotations on data is to instrument queries to propagate such annotations. However, even sophisticated query optimizers often fail to produce efficient execution plans for instrumented queries. We develop provenance-aware optimization techniques to address this problem. Specifically, we study algebraic equivalences targeted at instrumented queries and alternative ways of instrumenting queries for provenance capture. Furthermore, we present an extensible heuristic and cost-based optimization framework utilizing these optimizations. Our experiments confirm that these optimizations are highly effective, improving performance by several orders of magnitude for diverse provenance tasks." @default.
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- W2964297918 date "2019-07-01" @default.
- W2964297918 modified "2023-09-24" @default.
- W2964297918 title "Heuristic and Cost-Based Optimization for Diverse Provenance Tasks" @default.
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- W2964297918 doi "https://doi.org/10.1109/tkde.2018.2827074" @default.
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