anonymous_namespace{RelAlgOptimizer.cpp}::RexInputRenumberVisitor Class Reference

Inheritance diagram for anonymous_namespace{RelAlgOptimizer.cpp}::RexInputRenumberVisitor:

Collaboration diagram for anonymous_namespace{RelAlgOptimizer.cpp}::RexInputRenumberVisitor:

Public Member Functions
	RexInputRenumberVisitor (const std::unordered_map< const RelAlgNode *, std::unordered_map< size_t, size_t >> &new_numbering)
RetType	visitInput (const RexInput *input) const override
Public Member Functions inherited from RexVisitorBase< std::unique_ptr< const RexScalar > >
virtual std::unique_ptr< const RexScalar >	visit (const RexScalar *rex_scalar) const

Private Attributes
const std::unordered_map < const RelAlgNode *, std::unordered_map< size_t, size_t > > &	node_to_input_renum_

Additional Inherited Members
Public Types inherited from RexDeepCopyVisitor
using	RowValues = std::vector< std::unique_ptr< const RexScalar >>
Static Public Member Functions inherited from RexDeepCopyVisitor
static std::vector< RowValues >	copy (std::vector< RowValues > const &rhs)
Protected Types inherited from RexDeepCopyVisitor
using	RetType = std::unique_ptr< const RexScalar >
Protected Member Functions inherited from RexDeepCopyVisitor
RetType	visitInput (const RexInput *input) const override
RetType	visitLiteral (const RexLiteral *literal) const override
RetType	visitSubQuery (const RexSubQuery *subquery) const override
RetType	visitRef (const RexRef *ref) const override
RetType	visitOperator (const RexOperator *rex_operator) const override
RetType	visitWindowFunctionOperator (const RexWindowFunctionOperator *rex_window_function_operator) const
RetType	visitCase (const RexCase *rex_case) const override

Detailed Description

Definition at line 860 of file RelAlgOptimizer.cpp.

Constructor & Destructor Documentation

anonymous_namespace{RelAlgOptimizer.cpp}::RexInputRenumberVisitor::RexInputRenumberVisitor ( const std::unordered_map< const RelAlgNode *, std::unordered_map< size_t, size_t >> &  new_numbering )

inline

Definition at line 862 of file RelAlgOptimizer.cpp.

      : node_to_input_renum_(new_numbering) {}

Member Function Documentation

RetType anonymous_namespace{RelAlgOptimizer.cpp}::RexInputRenumberVisitor::visitInput ( const RexInput *  input ) const

inlineoverridevirtual

Implements RexVisitorBase< std::unique_ptr< const RexScalar > >.

Definition at line 866 of file RelAlgOptimizer.cpp.

References CHECK, RexInput::deepCopy(), RexAbstractInput::getIndex(), and RexInput::getSourceNode().

                                                           {
    auto source = input->getSourceNode();
    auto node_it = node_to_input_renum_.find(source);
    if (node_it != node_to_input_renum_.end()) {
      auto old_to_new_num = node_it->second;
      auto renum_it = old_to_new_num.find(input->getIndex());
      CHECK(renum_it != old_to_new_num.end());
      return boost::make_unique<RexInput>(source, renum_it->second);
    }
    return input->deepCopy();
  }

Here is the call graph for this function:

Member Data Documentation

const std::unordered_map<const RelAlgNode*, std::unordered_map<size_t, size_t> >& anonymous_namespace{RelAlgOptimizer.cpp}::RexInputRenumberVisitor::node_to_input_renum_

private

Definition at line 880 of file RelAlgOptimizer.cpp.

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The documentation for this class was generated from the following file:

• /home/jenkins-slave/workspace/core-os-doxygen/QueryEngine/RelAlgOptimizer.cpp