Examples with DriverYieldSignal com.facebook.presto.operator.DriverYieldSignal used on opensource projects

Example 26 with DriverYieldSignal

use of com.facebook.presto.operator.DriverYieldSignal in project presto by prestodb.

the class TestPageProcessorCompiler method testSanityRLE.

@Test
public void testSanityRLE() {
    PageProcessor processor = compiler.compilePageProcessor(TEST_SESSION.getSqlFunctionProperties(), Optional.empty(), ImmutableList.of(field(0, BIGINT), field(1, VARCHAR)), false, MAX_BATCH_SIZE).get();
    Slice varcharValue = Slices.utf8Slice("hello");
    Page page = new Page(RunLengthEncodedBlock.create(BIGINT, 123L, 100), RunLengthEncodedBlock.create(VARCHAR, varcharValue, 100));
    Page outputPage = getOnlyElement(processor.process(null, new DriverYieldSignal(), newSimpleAggregatedMemoryContext().newLocalMemoryContext(PageProcessor.class.getSimpleName()), page)).orElseThrow(() -> new AssertionError("page is not present"));
    assertEquals(outputPage.getPositionCount(), 100);
    assertTrue(outputPage.getBlock(0) instanceof RunLengthEncodedBlock);
    assertTrue(outputPage.getBlock(1) instanceof RunLengthEncodedBlock);
    RunLengthEncodedBlock rleBlock = (RunLengthEncodedBlock) outputPage.getBlock(0);
    assertEquals(BIGINT.getLong(rleBlock.getValue(), 0), 123L);
    RunLengthEncodedBlock rleBlock1 = (RunLengthEncodedBlock) outputPage.getBlock(1);
    assertEquals(VARCHAR.getSlice(rleBlock1.getValue(), 0), varcharValue);
}

Example 27 with DriverYieldSignal

use of com.facebook.presto.operator.DriverYieldSignal in project presto by prestodb.

the class TestPageProcessorCompiler method testNonDeterministicProject.

@Test
public void testNonDeterministicProject() {
    FunctionAndTypeManager functionAndTypeManager = createTestMetadataManager().getFunctionAndTypeManager();
    FunctionHandle lessThan = functionAndTypeManager.resolveOperator(LESS_THAN, fromTypes(BIGINT, BIGINT));
    CallExpression random = new CallExpression("random", functionAndTypeManager.lookupFunction("random", fromTypes(BIGINT)), BIGINT, singletonList(constant(10L, BIGINT)));
    InputReferenceExpression col0 = field(0, BIGINT);
    CallExpression lessThanRandomExpression = new CallExpression(LESS_THAN.name(), lessThan, BOOLEAN, ImmutableList.of(col0, random));
    PageProcessor processor = compiler.compilePageProcessor(TEST_SESSION.getSqlFunctionProperties(), Optional.empty(), ImmutableList.of(lessThanRandomExpression), false, MAX_BATCH_SIZE).get();
    assertFalse(new RowExpressionDeterminismEvaluator(metadataManager.getFunctionAndTypeManager()).isDeterministic(lessThanRandomExpression));
    Page page = new Page(createLongDictionaryBlock(1, 100));
    Page outputPage = getOnlyElement(processor.process(null, new DriverYieldSignal(), newSimpleAggregatedMemoryContext().newLocalMemoryContext(PageProcessor.class.getSimpleName()), page)).orElseThrow(() -> new AssertionError("page is not present"));
    assertFalse(outputPage.getBlock(0) instanceof DictionaryBlock);
}