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rSession9-3.pdf
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🔗 Source: vldb.org
📊 Size: 177 KB
👤 Author: Thomas Neumann
⬇️ Downloads: 97

Summary

Most DBMS offer a declarative query interface, but need an imperative representation for execution, usually relational algebra. The classical evaluation strategy is the iterator model, but it's not optimal for modern DBMS due to millions of virtual function calls and poor cache locality. Some DBMS switched to blockwise processing, which amortizes costs and improves locality, but has disadvantages like reduced pipelining and additional memory reads/writes.

Description

Most DBMS offer a declarative query interface, but need an imperative representation for execution, usually relational algebra.

Technical Information

  • File Format: PDF
  • File Size: 177 KB
  • Pages: 18
  • Language: EN
  • Author: Thomas Neumann
  • Total Downloads: 97
  • Last Updated: 1 week ago

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