greenplumn CDatumSortedSet 源码
greenplumn CDatumSortedSet 代码
文件路径：/src/backend/gporca/libgpopt/include/gpopt/base/CDatumSortedSet.h
// Greenplum Database
// Copyright (C) 2016 VMware, Inc. or its affiliates.
#ifndef GPOPT_CDatumSortedSet_H
#define GPOPT_CDatumSortedSet_H
#include "gpos/memory/CMemoryPool.h"
#include "gpopt/base/IComparator.h"
#include "gpopt/operators/CExpression.h"
#include "naucrates/base/IDatum.h"
namespace gpopt
{
// A sorted and uniq'd array of pointers to datums
// It facilitates the construction of CConstraintInterval
class CDatumSortedSet : public IDatumArray
{
private:
BOOL m_fIncludesNull;
public:
CDatumSortedSet(CMemoryPool *mp, CExpression *pexprArray,
const IComparator *pcomp);
BOOL FIncludesNull() const;
};
} // namespace gpopt
#endif
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