gistpredicate.cpp

此文件包含了在linux下实现tpr-tree索引的源代码

//--------------------------------------------------------------------
//        GiSTpredicate.cpp
//        -----------------
//
//        GiST - Generalized Search Tree 
//        June 2001 release, Aalborg University
//        
//        This file is a revised version of a part of the original 
//        libGiST release (version  0.9beta1)     
//        Copyright (c) 1996, Regents of the University of California
//

#include "GiST.h"

//------------------------------------------------
int PtrPredicate::Consistent(const GiSTentry& entry) const
{
    return !entry.IsLeaf() || entry.Ptr() == page;
}

//------------------------------------------------
GiSTobject* PtrPredicate::Copy() const
{
    return new PtrPredicate(page);
}

#ifdef PRINTING_OBJECTS
//------------------------------------------------
void PtrPredicate::Print(ostream& os) const
{
    os << "ptr = " << page;
}
#endif