Class: Veritas::Optimizer::Algebra::Union::EqualOperands

Inherits:
Veritas::Optimizer::Algebra::Union show all
Includes:
Relation::Operation::Binary::EqualOperands
Defined in:
lib/veritas/optimizer/algebra/union.rb

Overview

Optimize when operands are equal

Constant Summary

Constants inherited from Veritas::Optimizer

Noop, VERSION

Instance Attribute Summary

Attributes included from Function::Binary

#left, #right

Attributes inherited from Veritas::Optimizer

#operation

Instance Method Summary collapse

Methods included from Relation::Operation::Binary::EqualOperands

#optimizable?

Methods included from Function::Binary

#initialize

Methods inherited from Veritas::Optimizer

chain, #initialize, #optimizable?

Instance Method Details

#optimizeRelation

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.

A Union with equal operands is a noop

Returns:



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# File 'lib/veritas/optimizer/algebra/union.rb', line 19

def optimize
  left
end