Memoization in Cost-based Optimizers

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  • Presto

    The official home of the Presto distributed SQL query engine for big data

    You may find a similar design in many production-grade heuristic optimizers. In our previous blog post about Presto, we discussed the Memo class that manages such references. In Apache Calcite, the heuristic optimizer HepPlanner models node references through the class HepRelVertex.

  • Apache Calcite

    Apache Calcite

    You may find a similar design in many production-grade heuristic optimizers. In our previous blog post about Presto, we discussed the Memo class that manages such references. In Apache Calcite, the heuristic optimizer HepPlanner models node references through the class HepRelVertex.

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