Module: Veritas::Optimizer::Relation::Operation::Unary::OrderOperand

Included in:

Algebra::Extension::OrderOperand, Algebra::Projection::OrderOperand, Algebra::Rename::OrderOperand, Algebra::Restriction::OrderOperand, Algebra::Summarization::OrderOperand

Defined in:

lib/veritas/optimizer/relation/operation/unary.rb

Overview

Optimize when the operand is an Order

Instance Method Summary

• #optimizable? ⇒ Boolean private

  Test if the operand is an Order.

• #optimize ⇒ Order private

  Drop the Order and wrap the operand.

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 an Order

Returns:

• (Boolean)

# File 'lib/veritas/optimizer/relation/operation/unary.rb', line 37

def optimizable?
  operand.kind_of?(Veritas::Relation::Operation::Order)
end

#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.

Drop the Order and wrap the operand

Returns:

• (Order)

# File 'lib/veritas/optimizer/relation/operation/unary.rb', line 46

def optimize
  wrap_operand
end