greenplumn CBucketTest 源码

2022-08-18
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greenplumn CBucketTest 代码

文件路径：/src/backend/gporca/server/include/unittest/dxl/statistics/CBucketTest.h

//---------------------------------------------------------------------------
//	Greenplum Database
//	Copyright (C) 2018 VMware, Inc. or its affiliates.
//
//	@filename:
//		CBucketTest.h
//
//	@doc:
//		Test for CBucketTest
//---------------------------------------------------------------------------
#ifndef GPNAUCRATES_CBucketTest_H
#define GPNAUCRATES_CBucketTest_H

#include "naucrates/statistics/CBucket.h"

namespace gpnaucrates
{
//---------------------------------------------------------------------------
//	@class:
//		CBucketTest
//
//	@doc:
//		Static unit testing operations on histogram buckets
//
//---------------------------------------------------------------------------
class CBucketTest
{
private:
	// test case for intersection of buckets
	struct SBucketsIntersectTestElem
	{
		// lower bound of bucket 1
		INT m_iLb1;

		// upper bound of bucket 1
		INT m_iUb1;

		// is lower bound of bucket 1 closed
		BOOL m_fLb1Closed;

		// is upper bound of bucket 1 closed
		BOOL m_fUb1Closed;

		CDouble m_frequency1;

		CDouble m_distinct1;

		// lower bound of bucket 2
		INT m_iLb2;

		// upper bound of bucket 2
		INT m_iUb2;

		// is lower bound of bucket 2 closed
		BOOL m_fLb2Closed;

		// is upper bound of bucket 2 closed
		BOOL m_fUb2Closed;

		CDouble m_frequency2;

		CDouble m_distinct2;

		// result of the bucket intersect test
		BOOL fIntersect;

		// lower bound of output bucket
		INT m_iLbOutput;

		// upper bound of output bucket
		INT m_iUbOutput;

		// is lower bound of output bucket closed
		BOOL m_fLbOutputClosed;

		// is upper bound of output bucket closed
		BOOL m_fUbOutputClosed;

		CDouble m_frequencyOutput;

		CDouble m_distinctOutput;

	};	// SBucketsIntersectTestElem

	// do the bucket boundaries match
	static BOOL FMatchBucket(CBucket *bucket1, CBucket *bucket2);

public:
	// unittests
	static GPOS_RESULT EresUnittest();

	// bucket basic tests
	static GPOS_RESULT EresUnittest_CBucketInt4();

	static GPOS_RESULT EresUnittest_CBucketBool();

	// bucket intersect
	static GPOS_RESULT EresUnittest_CBucketIntersect();

	// bucket scaling tests
	static GPOS_RESULT EresUnittest_CBucketScale();

	// bucket difference tests
	static GPOS_RESULT EresUnittest_CBucketDifference();

	static GPOS_RESULT EresUnittest_CBucketMergeCommutativityUnion();

	static GPOS_RESULT EresUnittest_CBucketMergeCommutativitySameLowerBounds();

	static GPOS_RESULT EresUnittest_CBucketMergeCommutativitySameUpperBounds();

	static GPOS_RESULT EresUnittest_CBucketMergeCommutativityUnionAll();

	static GPOS_RESULT EresUnittest_CBucketMergeCommutativityDoubleDatum();

	static GPOS_RESULT
	EresUnittest_CBucketMergeCommutativityDoubleDatumSameLowerBounds();

	static GPOS_RESULT
	EresUnittest_CBucketMergeCommutativityDoubleDatumSameUpperBounds();
};	// class CBucketTest
}  // namespace gpnaucrates

#endif	// !GPNAUCRATES_CBucketTest_H


// EOF

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