greenplumn CTranslatorDXLToExprTest 源码

2022-08-18
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greenplumn CTranslatorDXLToExprTest 代码

文件路径：/src/backend/gporca/server/include/unittest/gpopt/translate/CTranslatorDXLToExprTest.h

//---------------------------------------------------------------------------
//	Greenplum Database
//	Copyright (C) 2011 EMC Corp.
//
//	@filename:
//		CTranslatorDXLToExprTest.h
//
//	@doc:
//		Tests translating DXL trees into Expr tree
//
//---------------------------------------------------------------------------


#ifndef GPOPT_CTranslatorDXLToExprTest_H
#define GPOPT_CTranslatorDXLToExprTest_H

#include "gpos/base.h"
#include "gpos/common/CRefCount.h"
#include "gpos/io/COstreamString.h"
#include "gpos/string/CWStringDynamic.h"

#include "gpopt/base/CColRef.h"
#include "gpopt/mdcache/CMDAccessor.h"
#include "gpopt/metadata/CColumnDescriptor.h"
#include "gpopt/metadata/CTableDescriptor.h"
#include "gpopt/operators/CExpression.h"

namespace gpopt
{
using namespace gpos;

//---------------------------------------------------------------------------
//	@class:
//		CTranslatorDXLToExprTest
//
//	@doc:
//		Static unit tests
//
//---------------------------------------------------------------------------

class CTranslatorDXLToExprTest
{
private:
	// translate a dxl document and check against the expected Expr tree's string representation
	static GPOS_RESULT EresTranslateAndCheck(
		CMemoryPool *mp,
		const CHAR
			*dxl_filename,	// DXL document representing the DXL logical tree
		const CWStringDynamic
			*pstrExpQuery  // string representation of the expected query
	);

	// translate a dxl document into Expr Tree
	static CExpression *Pexpr(
		CMemoryPool *mp,  // memory pool
		const CHAR
			*dxl_filename  // DXL document representing the DXL logical tree
	);

	// generate a string representation of a given Expr tree
	static CWStringDynamic *Pstr(CMemoryPool *mp, CExpression *pexpr);

	// create a get expression for a table (r) with two integer columns
	static CExpression *PexprGet(CMemoryPool *mp);

public:
	// unittests
	static GPOS_RESULT EresUnittest();

	// tests for supported operators
	static GPOS_RESULT EresUnittest_MetadataColumnMapping();
	static GPOS_RESULT EresUnittest_SingleTableQuery();
	static GPOS_RESULT EresUnittest_SelectQuery();
	static GPOS_RESULT EresUnittest_SelectQueryWithConst();
	static GPOS_RESULT EresUnittest_SelectQueryWithBoolExpr();
	static GPOS_RESULT EresUnittest_SelectQueryWithScalarOp();
	static GPOS_RESULT EresUnittest_Limit();
	static GPOS_RESULT EresUnittest_LimitNoOffset();
	static GPOS_RESULT EresUnittest_ScalarSubquery();
	static GPOS_RESULT EresUnittest_TVF();
	static GPOS_RESULT EresUnittest_SelectQueryWithConstInList();

};	// class CTranslatorDXLToExprTest
}  // namespace gpopt

#endif	// !GPOPT_CTranslatorDXLToExprTest_H

// EOF

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本文标签： greenplum
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