Class: Veritas::Optimizer::Algebra::Join

Inherits:

Relation::Operation::Combination

• Object
• Veritas::Optimizer
• Relation::Operation::Binary
• Relation::Operation::Combination
• Veritas::Optimizer::Algebra::Join

Defined in:

lib/veritas/optimizer/algebra/join.rb

Overview

Abstract base class representing Join optimizations

Direct Known Subclasses

DisjointHeaders, EqualHeaders, LeftMaterializedOperand, RightMaterializedOperand

Defined Under Namespace

Classes: DisjointHeaders, EqualHeaders, LeftMaterializedOperand, RightMaterializedOperand

Constant Summary

CONTRADICTION =

Veritas::Function::Proposition::Contradiction.instance

Constants inherited from Veritas::Optimizer

Noop, VERSION

Instance Attribute Summary

Attributes included from Function::Binary

#left, #right

Attributes inherited from Veritas::Optimizer

#operation

Method Summary

Methods inherited from Relation::Operation::Combination

#optimize

Methods included from Function::Binary

#initialize

Methods inherited from Veritas::Optimizer

chain, #initialize, #optimizable?, #optimize