C++ (Cpp) Page Exemples

Exemple #1

Fichier : query1.cpp Projet : aveek0218/ImpalaPythia

void compute() 
{
	Operator::Page* out;
	Operator::GetNextResultT result; 
	
	startTimer(&timer);
	if (q.scanStart() != Operator::Ready) {
		fail("Scan initialization failed.");
	}

	while(result.first == Operator::Ready) {
		result = q.getNext();

		out = result.second;

		Operator::Page::Iterator it = out->createIterator();
		void* tuple;
		while ( (tuple = it.next()) ) {
#ifdef VERBOSE
			cout << q.getOutSchema().prettyprint(tuple, ' ') << endl;
#endif
			skata1 += *(unsigned long long*)tuple;
			skata2 += *((double*)tuple+1);
		}
	}

	if (q.scanStop() != Operator::Ready) {
		fail("Scan stop failed.");
	}
	stopTimer(&timer);
}

Exemple #2

Fichier : querympsmjoin.cpp Projet : aveek0218/ImpalaPythia

void compute() 
{
	for (int i=0; i<TUPLES; ++i) {
		verify[i] = 0;
	}

	q.threadInit();

#ifdef VERBOSE
	PrettyPrinterVisitor ppv;
	cout << "---------- QUERY PLAN START ----------" << endl;
	q.accept(&ppv);
	cout << "----------- QUERY PLAN END -----------" << endl;
#endif

	Operator::Page* out;
	Operator::GetNextResultT result; 
	
	if (q.scanStart() != Operator::Ready) {
		fail("Scan initialization failed.");
	}

	while(result.first == Operator::Ready) {
		result = q.getNext();

		out = result.second;

		Operator::Page::Iterator it = out->createIterator();
		void* tuple;
		while ( (tuple = it.next()) ) {
#ifdef VERBOSE2
			cout << q.getOutSchema().prettyprint(tuple, ' ') << endl;
#endif
			long long v = q.getOutSchema().asLong(tuple, 0);
			if (v <= 0 || v > TUPLES)
				fail("Values that never were generated appear in the output stream.");
			double d1 = q.getOutSchema().asDecimal(tuple, 1);
			double d2 = v + 0.1;
			if (d1 != d2)
				fail("Wrong tuple detected at join output.");
			verify[v-1]++;
		}
	}

	if (q.scanStop() != Operator::Ready) {
		fail("Scan stop failed.");
	}

#ifdef VERBOSE
	cout << "---------- QUERY PLAN START ----------" << endl;
	q.accept(&ppv);
	cout << "----------- QUERY PLAN END -----------" << endl;
#endif

	q.threadClose();
}

Exemple #3

Fichier : queryaggsum.cpp Projet : aveek0218/ImpalaPythia

void compute() 
{
	int verify[TUPLES];

	for (int i=0; i<TUPLES; ++i) 
	{
		verify[i] = 0;
	}

	q.threadInit();

	Operator::Page* out;
	Operator::GetNextResultT result; 
	
	if (q.scanStart() != Operator::Ready) {
		fail("Scan initialization failed.");
	}

	while(result.first == Operator::Ready) {
		result = q.getNext();

		out = result.second;

		Operator::Page::Iterator it = out->createIterator();
		void* tuple;
		while ( (tuple = it.next()) ) {
#ifdef VERBOSE
			cout << q.getOutSchema().prettyprint(tuple, ' ') << endl;
#endif
			long long v = q.getOutSchema().asLong(tuple, 0);
			if (v <= 0 || v > TUPLES)
				fail("Values that never were generated appear in the output stream.");
			if (verify[v-1] != 0)
				fail("Aggregation group appears twice.");
			if (lrint(q.getOutSchema().asDecimal(tuple, 1)) != (v*(v+1)/2))
				fail("Aggregated value is wrong.");
			verify[v-1]++;
		}
	}

	if (q.scanStop() != Operator::Ready) {
		fail("Scan stop failed.");
	}

	q.threadClose();
}

Exemple #4

Fichier : querypreprejoincartesianprod.cpp Projet : feilongliu/pythia

void compute() 
{
	for (int i=0; i<TUPLES*TUPLES; ++i) {
		verify[i] = 0;
	}

	q.threadInit();

	Operator::Page* out;
	Operator::GetNextResultT result; 
	
	if (q.scanStart() != Operator::Ready) {
		fail("Scan initialization failed.");
	}

	while(result.first == Operator::Ready) {
		result = q.getNext();

		out = result.second;

		Operator::Page::Iterator it = out->createIterator();
		void* tuple;
		while ( (tuple = it.next()) ) {
#ifdef VERBOSE
			cout << q.getOutSchema().prettyprint(tuple, ' ') << endl;
#endif
			long long v = q.getOutSchema().asLong(tuple, 0);
			if (v <= 0 || v > TUPLES)
				fail("Values that never were generated appear in the output stream.");
			double d1 = q.getOutSchema().asDecimal(tuple, 1);
			int i2 = (int) lrint(d1);
			int idx = (v-1)*TUPLES + (i2-1);
			if (idx < 0 || idx >= TUPLES*TUPLES)
				fail("Wrong values appear in output.");
			verify[idx]++;
		}
	}

	if (q.scanStop() != Operator::Ready) {
		fail("Scan stop failed.");
	}

	q.threadClose();
}

Exemple #5

Fichier : querympsmpartitionedjoin.cpp Projet : feilongliu/pythia

void compute() 
{
	q.threadInit();

	Operator::Page* out;
	Operator::GetNextResultT result; 
	
	if (q.scanStart() != Operator::Ready) {
		fail("Scan initialization failed.");
	}

	while(result.first == Operator::Ready) {
		result = q.getNext();

		out = result.second;

		Operator::Page::Iterator it = out->createIterator();
		void* tuple;
		while ( (tuple = it.next()) ) {
#ifdef VERBOSE
			cout << q.getOutSchema().prettyprint(tuple, ' ') << endl;
#endif
			long long v = q.getOutSchema().asLong(tuple, 0);
			if (v <= 0 || v > TUPLES)
				fail("Values that never were generated appear in the output stream.");
			double d1 = q.getOutSchema().asDecimal(tuple, 1);
			double d2 = v + 0.1;
			if (d1 != d2)
				fail("Wrong tuple detected at join output.");
			verify.at(v)++;
		}
	}

	if (q.scanStop() != Operator::Ready) {
		fail("Scan stop failed.");
	}

	q.threadClose();
}

Exemple #6

Fichier : queryhdf5.cpp Projet : aveek0218/ImpalaPythia

void compute() 
{
	q.threadInit();

	Operator::Page* out;
	Operator::GetNextResultT result; 
	
	if (q.scanStart() != Operator::Ready) {
		fail("Scan initialization failed.");
	}

	while(result.first == Operator::Ready) 
	{
		result = q.getNext();

		out = result.second;

		Operator::Page::Iterator it = out->createIterator();
		void* tuple;
		while ( (tuple = it.next()) ) 
		{
#ifdef VERBOSE2
			cout << q.getOutSchema().prettyprint(tuple, ' ') << endl;
#endif

			DataT d;
			d.v1 = q.getOutSchema().asLong(tuple, 0);
			d.v2 = q.getOutSchema().asLong(tuple, 1);
			d.v3 = q.getOutSchema().asInt(tuple, 2);
			finalresult.push_back(d);
		}
	}

	if (q.scanStop() != Operator::Ready) {
		fail("Scan stop failed.");
	}

	q.threadClose();
}