Class: Veritas::Optimizer::Algebra::Rename::OrderOperand

Inherits:
Veritas::Optimizer::Algebra::Rename show all
Includes:
Relation::Operation::Unary::OrderOperand
Defined in:
lib/veritas/optimizer/algebra/rename.rb

Overview

Optimize when the operand is an Order

Constant Summary

Constants inherited from Veritas::Optimizer

Noop, VERSION

Instance Attribute Summary

Attributes inherited from Veritas::Optimizer::Algebra::Rename

#aliases

Attributes inherited from Relation::Operation::Unary

#header

Attributes included from Function::Unary

#operand

Attributes inherited from Veritas::Optimizer

#operation

Instance Method Summary collapse

Methods included from Relation::Operation::Unary::OrderOperand

#optimizable?

Methods inherited from Veritas::Optimizer::Algebra::Rename

#initialize

Methods inherited from Relation::Operation::Unary

#initialize

Methods included from Function::Unary

#initialize

Methods inherited from Veritas::Optimizer

chain, #initialize, #optimizable?

Constructor Details

This class inherits a constructor from Veritas::Optimizer::Algebra::Rename

Instance Method Details

#optimize ⇒ Order

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.

Wrap the Rename in an Order

Returns:

  • (Order) 


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# File 'lib/veritas/optimizer/algebra/rename.rb', line 260

def optimize
  operand.class.new(wrap_operand, directions)
end