anonymous_namespace{RelAlgOptimizer.cpp}::RexInputRedirector Class Reference

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

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

Public Member Functions
	RexInputRedirector (const RelAlgNode *old_src, const RelAlgNode *new_src)
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 RelAlgNode *	old_src_
const RelAlgNode *	new_src_

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 1418 of file RelAlgOptimizer.cpp.

Constructor & Destructor Documentation

anonymous_namespace{RelAlgOptimizer.cpp}::RexInputRedirector::RexInputRedirector ( const RelAlgNode *  old_src, const RelAlgNode *  new_src  )

inline

Definition at line 1420 of file RelAlgOptimizer.cpp.

      : old_src_(old_src), new_src_(new_src) {}

Member Function Documentation

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

inlineoverridevirtual

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

Definition at line 1423 of file RelAlgOptimizer.cpp.

References CHECK_EQ, CHECK_NE, RexAbstractInput::getIndex(), RexInput::getSourceNode(), and join().

                                                           {
    CHECK_EQ(old_src_, input->getSourceNode());
    CHECK_NE(old_src_, new_src_);
    auto actual_new_src = new_src_;
    if (auto join = dynamic_cast<const RelJoin*>(new_src_)) {
      actual_new_src = join->getInput(0);
      CHECK_EQ(join->inputCount(), size_t(2));
      auto src2_input_base = actual_new_src->size();
      if (input->getIndex() >= src2_input_base) {
        actual_new_src = join->getInput(1);
        return boost::make_unique<RexInput>(actual_new_src,
                                            input->getIndex() - src2_input_base);
      }
    }

    return boost::make_unique<RexInput>(actual_new_src, input->getIndex());
  }

Here is the call graph for this function:

Member Data Documentation

const RelAlgNode* anonymous_namespace{RelAlgOptimizer.cpp}::RexInputRedirector::new_src_

private

Definition at line 1443 of file RelAlgOptimizer.cpp.

const RelAlgNode* anonymous_namespace{RelAlgOptimizer.cpp}::RexInputRedirector::old_src_

private

Definition at line 1442 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