greenplumn CPhysicalUnionAllFactory 源码
greenplumn CPhysicalUnionAllFactory 代码
文件路径：/src/backend/gporca/libgpopt/include/gpopt/operators/CPhysicalUnionAllFactory.h
// Greenplum Database
// Copyright (C) 2016 VMware, Inc. or its affiliates.
#ifndef GPOPT_CPhysicalUnionAllFactory_H
#define GPOPT_CPhysicalUnionAllFactory_H
#include "gpos/types.h"
#include "gpopt/operators/CLogicalUnionAll.h"
#include "gpopt/operators/CPhysicalUnionAll.h"
namespace gpopt
{
// Constructs a gpopt::CPhysicalUnionAll operator instance. Depending the
// parameter fParallel we construct either a CPhysicalParallelUnionAll or
// a CPhysicalSerialUnionAll instance.
class CPhysicalUnionAllFactory
{
private:
CLogicalUnionAll *const m_popLogicalUnionAll;
public:
CPhysicalUnionAllFactory(CLogicalUnionAll *popLogicalUnionAll);
CPhysicalUnionAll *PopPhysicalUnionAll(CMemoryPool *mp, BOOL fParallel);
};
} // namespace gpopt
#endif //GPOPT_CPhysicalUnionAllFactory_H
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