anonymous_namespace{RelAlgOptimizer.cpp}::RexRebindInputsVisitor Class Reference

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

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Public Member Functions
	RexRebindInputsVisitor (const RelAlgNode *old_input, const RelAlgNode *new_input)
void *	visitInput (const RexInput *rex_input) const override
void	visitNode (const RelAlgNode *node) const
Public Member Functions inherited from RexVisitor< void *>
void *	visitInput (const RexInput *) const override
void *	visitLiteral (const RexLiteral *) const override
void *	visitSubQuery (const RexSubQuery *) const override
void *	visitRef (const RexRef *) const override
void *	visitOperator (const RexOperator *rex_operator) const override
void *	visitCase (const RexCase *rex_case) const override
Public Member Functions inherited from RexVisitorBase< void * >
virtual void *	visit (const RexScalar *rex_scalar) const

Private Attributes
const RelAlgNode *	old_input_
const RelAlgNode *	new_input_

Additional Inherited Members
Protected Member Functions inherited from RexVisitor< void *>
virtual void *	aggregateResult (const void * &aggregate, const void * &next_result) const
void *	defaultResult () const override

Detailed Description

Definition at line 57 of file RelAlgOptimizer.cpp.

Constructor & Destructor Documentation

RexRebindInputsVisitor()

anonymous_namespace{RelAlgOptimizer.cpp}::RexRebindInputsVisitor::RexRebindInputsVisitor ( const RelAlgNode *  old_input, const RelAlgNode *  new_input  )

inline

Definition at line 59 of file RelAlgOptimizer.cpp.

      : old_input_(old_input), new_input_(new_input) {}

Member Function Documentation

visitInput()

void* anonymous_namespace{RelAlgOptimizer.cpp}::RexRebindInputsVisitor::visitInput ( const RexInput *  rex_input ) const

inlineoverridevirtual

Implements RexVisitorBase< void * >.

Definition at line 62 of file RelAlgOptimizer.cpp.

References RexInput::getSourceNode(), and RexInput::setSourceNode().

                                                             {
    const auto old_source = rex_input->getSourceNode();
    if (old_source == old_input_) {
      rex_input->setSourceNode(new_input_);
    }
    return nullptr;
  };

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visitNode()

void anonymous_namespace{RelAlgOptimizer.cpp}::RexRebindInputsVisitor::visitNode ( const RelAlgNode *  node ) const

inline

Definition at line 70 of file RelAlgOptimizer.cpp.

References CHECK, and join().

Referenced by anonymous_namespace{RelAlgOptimizer.cpp}::redirect_inputs_of(), and anonymous_namespace{RelAlgOptimizer.cpp}::try_insert_coalesceable_proj().

                                               {
    if (dynamic_cast<const RelAggregate*>(node) || dynamic_cast<const RelSort*>(node)) {
      return;
    }
    if (auto join = dynamic_cast<const RelJoin*>(node)) {
      if (auto condition = join->getCondition()) {
        visit(condition);
      }
      return;
    }
    if (auto project = dynamic_cast<const RelProject*>(node)) {
      for (size_t i = 0; i < project->size(); ++i) {
        visit(project->getProjectAt(i));
      }
      return;
    }
    if (auto filter = dynamic_cast<const RelFilter*>(node)) {
      visit(filter->getCondition());
      return;
    }
    CHECK(false);
  }

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Member Data Documentation

new_input_

const RelAlgNode* anonymous_namespace{RelAlgOptimizer.cpp}::RexRebindInputsVisitor::new_input_

private

Definition at line 95 of file RelAlgOptimizer.cpp.

old_input_

const RelAlgNode* anonymous_namespace{RelAlgOptimizer.cpp}::RexRebindInputsVisitor::old_input_

private

Definition at line 94 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