greenplumn CXformTest 代码
文件路径：/src/backend/gporca/server/include/unittest/gpopt/xforms/CXformTest.h
/---------------------------------------------------------------------------
/ Greenplum Database
/ Copyright (C) 2009 Greenplum, Inc.
/
/ @filename:
/ CXformTest.h
/
/ @doc:
/ Test for CXForm
/---------------------------------------------------------------------------
#ifndef GPOPT_CXformTest_H
#define GPOPT_CXformTest_H
#include "gpos/base.h"
#include "gpopt/mdcache/CMDAccessor.h"
#include "gpopt/operators/CExpression.h"
namespace gpopt
{
using namespace gpos;
/---------------------------------------------------------------------------
/ @class:
/ CXformTest
/
/ @doc:
/ Unittests
/
/---------------------------------------------------------------------------
class CXformTest
{
private:
/ path to metadata test file
static const CHAR *m_szMDFilePath;
/ accessor to metadata cache
static CMDAccessor *m_pmda;
/ generate a random join tree
static CExpression *PexprJoinTree(CMemoryPool *mp);
/ generate random star join tree
static CExpression *PexprStarJoinTree(CMemoryPool *mp, ULONG ulTabs);
/ application of different xforms for the given expression
static void ApplyExprXforms(CMemoryPool *mp, IOstream &os,
CExpression *pexpr);
public:
/ test driver
static GPOS_RESULT EresUnittest();
/ test application of different xforms
static GPOS_RESULT EresUnittest_ApplyXforms();
/ test application of cte-related xforms
static GPOS_RESULT EresUnittest_ApplyXforms_CTE();
#ifdef GPOS_DEBUG
/ test name -> xform mapping
static GPOS_RESULT EresUnittest_Mapping();
#endif / GPOS_DEBUG
}; / class CXformTest
} / namespace gpopt
#endif / !GPOPT_CXformTest_H
/ EOF
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