use of io.prestosql.operator.index.PageRecordSet in project hetu-core by openlookeng.
the class TestScanFilterAndProjectOperator method testRecordCursorYield.
@Test
public void testRecordCursorYield() {
// create a generic long function that yields for projection on every row
// verify we will yield #row times totally
// create a table with 15 rows
int length = 15;
Page input = SequencePageBuilder.createSequencePage(ImmutableList.of(BIGINT), length, 0);
DriverContext driverContext = newDriverContext();
// set up generic long function with a callback to force yield
Metadata localMetadata = functionAssertions.getMetadata();
localMetadata.getFunctionAndTypeManager().registerBuiltInFunctions(ImmutableList.of(new GenericLongFunction("record_cursor", value -> {
driverContext.getYieldSignal().forceYieldForTesting();
return value;
})));
ExpressionCompiler compiler = new ExpressionCompiler(localMetadata, new PageFunctionCompiler(localMetadata, 0));
List<RowExpression> projections = ImmutableList.of(call(QualifiedObjectName.valueOfDefaultFunction("generic_long_record_cursor").toString(), new BuiltInFunctionHandle(internalScalarFunction(QualifiedObjectName.valueOfDefaultFunction("generic_long_record_cursor"), BIGINT.getTypeSignature(), ImmutableList.of(BIGINT.getTypeSignature()))), BIGINT, field(0, BIGINT)));
Supplier<CursorProcessor> cursorProcessor = compiler.compileCursorProcessor(Optional.empty(), projections, "key");
Supplier<PageProcessor> pageProcessor = compiler.compilePageProcessor(Optional.empty(), projections);
ScanFilterAndProjectOperator.ScanFilterAndProjectOperatorFactory factory = new ScanFilterAndProjectOperator.ScanFilterAndProjectOperatorFactory(0, new PlanNodeId("test"), new PlanNodeId("0"), (session, split, table, columns, dynamicFilter) -> new RecordPageSource(new PageRecordSet(ImmutableList.of(BIGINT), input)), cursorProcessor, pageProcessor, TEST_TABLE_HANDLE, ImmutableList.of(), null, ImmutableList.of(BIGINT), new DataSize(0, BYTE), 0, ReuseExchangeOperator.STRATEGY.REUSE_STRATEGY_DEFAULT, new UUID(0, 0), false, Optional.empty(), 0, 0);
SourceOperator operator = factory.createOperator(driverContext);
operator.addSplit(new Split(new CatalogName("test"), TestingSplit.createLocalSplit(), Lifespan.taskWide()));
operator.noMoreSplits();
// start driver; get null value due to yield for the first 15 times
for (int i = 0; i < length; i++) {
driverContext.getYieldSignal().setWithDelay(SECONDS.toNanos(1000), driverContext.getYieldExecutor());
assertNull(operator.getOutput());
driverContext.getYieldSignal().reset();
}
// the 16th yield is not going to prevent the operator from producing a page
driverContext.getYieldSignal().setWithDelay(SECONDS.toNanos(1000), driverContext.getYieldExecutor());
Page output = operator.getOutput();
driverContext.getYieldSignal().reset();
assertNotNull(output);
assertEquals(toValues(BIGINT, output.getBlock(0)), toValues(BIGINT, input.getBlock(0)));
}
use of io.prestosql.operator.index.PageRecordSet in project hetu-core by openlookeng.
the class TestScanFilterAndProjectOperator method testRecordCursorSource.
@Test
public void testRecordCursorSource() {
final Page input = SequencePageBuilder.createSequencePage(ImmutableList.of(VARCHAR), 10_000, 0);
DriverContext driverContext = newDriverContext();
List<RowExpression> projections = ImmutableList.of(field(0, VARCHAR));
Supplier<CursorProcessor> cursorProcessor = expressionCompiler.compileCursorProcessor(Optional.empty(), projections, "key");
Supplier<PageProcessor> pageProcessor = expressionCompiler.compilePageProcessor(Optional.empty(), projections);
ScanFilterAndProjectOperator.ScanFilterAndProjectOperatorFactory factory = new ScanFilterAndProjectOperator.ScanFilterAndProjectOperatorFactory(0, new PlanNodeId("test"), new PlanNodeId("0"), (session, split, table, columns, dynamicFilter) -> new RecordPageSource(new PageRecordSet(ImmutableList.of(VARCHAR), input)), cursorProcessor, pageProcessor, TEST_TABLE_HANDLE, ImmutableList.of(), null, ImmutableList.of(VARCHAR), new DataSize(0, BYTE), 0, ReuseExchangeOperator.STRATEGY.REUSE_STRATEGY_DEFAULT, new UUID(0, 0), false, Optional.empty(), 0, 0);
SourceOperator operator = factory.createOperator(driverContext);
operator.addSplit(new Split(new CatalogName("test"), TestingSplit.createLocalSplit(), Lifespan.taskWide()));
operator.noMoreSplits();
MaterializedResult expected = toMaterializedResult(driverContext.getSession(), ImmutableList.of(VARCHAR), ImmutableList.of(input));
MaterializedResult actual = toMaterializedResult(driverContext.getSession(), ImmutableList.of(VARCHAR), toPages(operator));
assertEquals(actual.getRowCount(), expected.getRowCount());
assertEquals(actual, expected);
}
use of io.prestosql.operator.index.PageRecordSet in project hetu-core by openlookeng.
the class PageProcessorBenchmark method setup.
@Setup
public void setup() {
Type tmpType = TYPE_MAP.get(this.type);
for (int i = 0; i < columnCount; i++) {
Symbol symbol = new Symbol(tmpType.getDisplayName().toLowerCase(ENGLISH) + i);
symbolTypes.put(symbol, tmpType);
sourceLayout.put(symbol, i);
}
List<RowExpression> projections = getProjections(tmpType);
types = projections.stream().map(RowExpression::getType).collect(toList());
Metadata metadata = createTestMetadataManager();
PageFunctionCompiler pageFunctionCompiler = new PageFunctionCompiler(metadata, 0);
inputPage = createPage(types, dictionaryBlocks);
pageProcessor = new ExpressionCompiler(metadata, pageFunctionCompiler).compilePageProcessor(Optional.of(getFilter(tmpType)), projections).get();
recordSet = new PageRecordSet(types, inputPage);
cursorProcessor = new ExpressionCompiler(metadata, pageFunctionCompiler).compileCursorProcessor(Optional.of(getFilter(tmpType)), projections, "key").get();
}
use of io.prestosql.operator.index.PageRecordSet in project hetu-core by openlookeng.
the class TestReadWrite method testRecordSetReadWrite.
private void testRecordSetReadWrite(Random random, int records) {
testReadWrite(random, records, blocks -> {
List<Type> types = columns.stream().map(ColumnDefinition::getType).collect(toImmutableList());
PageRecordSet inputRecordSet = new PageRecordSet(types, new Page(blocks.toArray(new Block[blocks.size()])));
return fromRecordSet(inputRecordSet);
});
}
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