Query Execution (Sort and Join operators)

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Content

Roadmap

Nested Loop Join (NLJ)

Implementing Operators

Operator Cost Model

Assumptions

Parameters used in Cost Model

Notions of clustering

Clustering Index

Operator Classes

Implementing Tuple-at-a-time Operators

Implementing a Full-Relation Operator, Ex: Sort

Two-phase Sort: Phase 1

Analysis of Two-Phase Sort

Duplicate Elimination

Duplicate Elimination Based on Sorting

Back to Nested Loop Join (NLJ)

Analysis of Tuple-based NLJ

Joins with Sorting

Dropdown