Class: Axiom::Optimizer::Algebra::Restriction::ProductOperand
- Inherits:
-
CombinationOperand
- Object
- Axiom::Optimizer
- Relation::Operation::Unary
- Axiom::Optimizer::Algebra::Restriction
- CombinationOperand
- Axiom::Optimizer::Algebra::Restriction::ProductOperand
- Defined in:
- lib/axiom/optimizer/algebra/restriction.rb
Overview
Optimize when the operand is a Product
Constant Summary
Constants inherited from Axiom::Optimizer
Instance Attribute Summary
Attributes inherited from Axiom::Optimizer::Algebra::Restriction
Attributes inherited from Relation::Operation::Unary
Attributes included from Function::Unary
Attributes inherited from Axiom::Optimizer
Instance Method Summary collapse
-
#optimizable? ⇒ Boolean
private
Test if the operand is a Join and the restriction is commutative.
Methods inherited from CombinationOperand
Methods inherited from Axiom::Optimizer::Algebra::Restriction
Methods inherited from Relation::Operation::Unary
Methods included from Function::Unary
Methods inherited from Axiom::Optimizer
Constructor Details
This class inherits a constructor from Axiom::Optimizer::Algebra::Restriction
Instance Method Details
#optimizable? ⇒ Boolean
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
Test if the operand is a Join and the restriction is commutative
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# File 'lib/axiom/optimizer/algebra/restriction.rb', line 267 def optimizable? operand.kind_of?(Axiom::Algebra::Product) && super end |