Examples with HashAggregationOperatorFactory com.facebook.presto.operator.HashAggregationOperator.HashAggregationOperatorFactory used on opensource projects

Example 11 with HashAggregationOperatorFactory

use of com.facebook.presto.operator.HashAggregationOperator.HashAggregationOperatorFactory in project presto by prestodb.

the class TestHashAggregationOperator method testHashBuilderResizeLimit.

@Test(dataProvider = "hashEnabled", expectedExceptions = ExceededMemoryLimitException.class, expectedExceptionsMessageRegExp = "Query exceeded local memory limit of 3MB")
public void testHashBuilderResizeLimit(boolean hashEnabled) {
    BlockBuilder builder = VARCHAR.createBlockBuilder(new BlockBuilderStatus(), 1, DEFAULT_MAX_BLOCK_SIZE_IN_BYTES);
    // this must be larger than DEFAULT_MAX_BLOCK_SIZE, 64K
    VARCHAR.writeSlice(builder, Slices.allocate(5_000_000));
    builder.build();
    List<Integer> hashChannels = Ints.asList(0);
    RowPagesBuilder rowPagesBuilder = rowPagesBuilder(hashEnabled, hashChannels, VARCHAR);
    List<Page> input = rowPagesBuilder.addSequencePage(10, 100).addBlocksPage(builder.build()).addSequencePage(10, 100).build();
    DriverContext driverContext = createTaskContext(executor, TEST_SESSION, new DataSize(3, MEGABYTE)).addPipelineContext(0, true, true).addDriverContext();
    HashAggregationOperatorFactory operatorFactory = new HashAggregationOperatorFactory(0, new PlanNodeId("test"), ImmutableList.of(VARCHAR), hashChannels, ImmutableList.of(), Step.SINGLE, ImmutableList.of(COUNT.bind(ImmutableList.of(0), Optional.empty())), rowPagesBuilder.getHashChannel(), Optional.empty(), 100_000, new DataSize(16, MEGABYTE), joinCompiler);
    toPages(operatorFactory, driverContext, input);
}