greenplumn CScalarCoerceBase 代码
文件路径：/src/backend/gporca/libgpopt/src/operators/CScalarCoerceBase.cpp
/---------------------------------------------------------------------------
/ Greenplum Database
/ Copyright (C) 2017 VMware, Inc. or its affiliates.
/
/ @filename:
/ CScalarCoerceBase.cpp
/
/ @doc:
/ Implementation of scalar coerce operator base class
/
/ @owner:
/
/ @test:
/
/
/---------------------------------------------------------------------------
#include "gpopt/operators/CScalarCoerceBase.h"
#include "gpos/base.h"
using namespace gpopt;
using namespace gpmd;
/---------------------------------------------------------------------------
/ @function:
/ CScalarCoerceBase::CScalarCoerceBase
/
/ @doc:
/ Ctor
/
/---------------------------------------------------------------------------
CScalarCoerceBase::CScalarCoerceBase(CMemoryPool *mp, IMDId *mdid_type,
INT type_modifier, ECoercionForm ecf,
INT location)
: CScalar(mp),
m_result_type_mdid(mdid_type),
m_type_modifier(type_modifier),
m_ecf(ecf),
m_location(location)
{
GPOS_ASSERT(nullptr != mdid_type);
GPOS_ASSERT(mdid_type->IsValid());
}
/---------------------------------------------------------------------------
/ @function:
/ CScalarCoerceBase::~CScalarCoerceBase
/
/ @doc:
/ Dtor
/
/---------------------------------------------------------------------------
CScalarCoerceBase::~CScalarCoerceBase()
{
m_result_type_mdid->Release();
}
/---------------------------------------------------------------------------
/ @function:
/ CScalarCoerceBase::MdidType
/
/ @doc:
/ Return type of the scalar expression
/
/---------------------------------------------------------------------------
IMDId *
CScalarCoerceBase::MdidType() const
{
return m_result_type_mdid;
}
/---------------------------------------------------------------------------
/ @function:
/ CScalarCoerceBase::TypeModifier
/
/ @doc:
/ Return type modifier
/
/---------------------------------------------------------------------------
INT
CScalarCoerceBase::TypeModifier() const
{
return m_type_modifier;
}
/---------------------------------------------------------------------------
/ @function:
/ CScalarCoerceBase::Ecf
/
/ @doc:
/ Return coercion form
/
/---------------------------------------------------------------------------
CScalar::ECoercionForm
CScalarCoerceBase::Ecf() const
{
return m_ecf;
}
/---------------------------------------------------------------------------
/ @function:
/ CScalarCoerceBase::Location
/
/ @doc:
/ Return token location
/
/---------------------------------------------------------------------------
INT
CScalarCoerceBase::Location() const
{
return m_location;
}
/---------------------------------------------------------------------------
/ @function:
/ CScalarCoerceBase::PopCopyWithRemappedColumns
/
/ @doc:
/ return a copy of the operator with remapped columns
/
/---------------------------------------------------------------------------
COperator *
CScalarCoerceBase::PopCopyWithRemappedColumns(
CMemoryPool *, /mp,
UlongToColRefMap *, /colref_mapping,
BOOL /must_exist
)
{
return PopCopyDefault();
}
/ EOF
相关信息
相关文章
greenplumn CExpressionFactorizer 源码
greenplumn CExpressionHandle 源码
greenplumn CExpressionPreprocessor 源码
greenplumn CExpressionUtils 源码