RexInputRenumber< bAllowMissing > Class Template Reference

#include <RexVisitor.h>

Inheritance diagram for RexInputRenumber< bAllowMissing >:

Collaboration diagram for RexInputRenumber< bAllowMissing >:

Public Member Functions
	RexInputRenumber (const 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 < size_t, size_t > &	old_to_new_idx_

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	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

template<bool bAllowMissing>
class RexInputRenumber< bAllowMissing >

Definition at line 226 of file RexVisitor.h.

Constructor & Destructor Documentation

template<bool bAllowMissing>

RexInputRenumber< bAllowMissing >::RexInputRenumber ( const std::unordered_map< size_t, size_t > &  new_numbering )

inline

Definition at line 228 of file RexVisitor.h.

      : old_to_new_idx_(new_numbering) {}

Member Function Documentation

template<bool bAllowMissing>

RetType RexInputRenumber< bAllowMissing >::visitInput ( const RexInput *  input ) const

inlineoverridevirtual

Reimplemented from RexDeepCopyVisitor.

Definition at line 230 of file RexVisitor.h.

References CHECK, RexInput::deepCopy(), RexAbstractInput::getIndex(), RexInput::getSourceNode(), and RexInputRenumber< bAllowMissing >::old_to_new_idx_.

                                                           {
    auto renum_it = old_to_new_idx_.find(input->getIndex());
    if (bAllowMissing) {
      if (renum_it != old_to_new_idx_.end()) {
        return std::make_unique<RexInput>(input->getSourceNode(), renum_it->second);
      } else {
        return input->deepCopy();
      }
    } else {
      CHECK(renum_it != old_to_new_idx_.end());
      return std::make_unique<RexInput>(input->getSourceNode(), renum_it->second);
    }
  }

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Member Data Documentation

template<bool bAllowMissing>

const std::unordered_map<size_t, size_t>& RexInputRenumber< bAllowMissing >::old_to_new_idx_

private

Definition at line 245 of file RexVisitor.h.

Referenced by RexInputRenumber< bAllowMissing >::visitInput().

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

• /home/jenkins-slave/workspace/core-os-doxygen/QueryEngine/RexVisitor.h