Query Optimization
New Schema for Examples
Motivating Example
Alternative Plans 1
Alternative Plans 2 With Indexes
Query Optimization Process
Key Lessons in Optimization
Relational Algebra Equivalences
More Equivalences
Query Rewriting: Predicate Pushdown
Query Rewrites: Predicate Pushdown (through grouping)
Query Rewrite: Pushing predicates up
Query Rewrite: Predicate Movearound
Nested Queries
Query Rewrite Summary
Email: alon@cs.washington.edu
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