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There is considerable overlap between strategies proposed for subquery evaluation, and those for grouping and aggregation. In this paper we show how a number of small, independent primitives generate a rich set of efficient execution strategies —...
This paper describes techniques implemented in Microsoft SQL Server for queries containing sub-queries and/or aggregations, based on a number of orthogonal ...
We describe techniques implemented in Microsoft SQL. Server (releases 7.0 and 8.0) for queries containing sub- queries and/or aggregations, based on a number of ...
Optimization of subqueries has been studied for some time; Challenges. Mixing scalar and relational expressions; Appropriate abstractions for correct and ...
Jun 14, 2001 · Orthogonal Optimization of Subqueries and Aggregation. César A. Galindo-Legaria, Milind Joshi. Available in: PDF. 394 Downloads.
Apr 21, 2021 · The paper Orthogonal Optimization of Subqueries and Aggregation[1] repeatedly pushes correlated join down based on these rules until it is ...
Jun 24, 2022 · During one of our paper reading sessions, we looked at the paper Orthogonal Optimization of Subqueries and Aggregation, by Cesar A. Galindo ...
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The goal is to move the subquery up a level so that the DBMS can execute it as a join. 39. ORTHOGONAL OPTIMIZATION OF SUBQUERIES · AND AGGREGATION · SIGMOD 2001.
Sep 30, 2021 · This article shares the optimization techniques of subqueries and tips on handling subqueries in distributed databases.