Examples with BlockAssertions.createStringSequenceBlock com.facebook.presto.block.BlockAssertions.createStringSequenceBlock used on opensource projects

Example 1 with BlockAssertions.createStringSequenceBlock

use of com.facebook.presto.block.BlockAssertions.createStringSequenceBlock in project presto by prestodb.

the class TestGroupByHash method testForceRehash.

@Test
public void testForceRehash() {
    // Create a page with positionCount >> expected size of groupByHash
    Block valuesBlock = BlockAssertions.createStringSequenceBlock(0, 100);
    Block hashBlock = TypeUtils.getHashBlock(ImmutableList.of(VARCHAR), valuesBlock);
    // Create group by hash with extremely small size
    GroupByHash groupByHash = createGroupByHash(TEST_SESSION, ImmutableList.of(VARCHAR), new int[] { 0 }, Optional.of(1), 4, JOIN_COMPILER);
    groupByHash.getGroupIds(new Page(valuesBlock, hashBlock)).process();
    // Ensure that all groups are present in group by hash
    for (int i = 0; i < valuesBlock.getPositionCount(); i++) {
        assertTrue(groupByHash.contains(i, new Page(valuesBlock, hashBlock), CONTAINS_CHANNELS));
    }
}

Example 2 with BlockAssertions.createStringSequenceBlock

use of com.facebook.presto.block.BlockAssertions.createStringSequenceBlock in project presto by prestodb.

the class TestGroupByHash method testContainsMultipleColumns.

@Test
public void testContainsMultipleColumns() {
    Block valuesBlock = BlockAssertions.createDoubleSequenceBlock(0, 10);
    Block stringValuesBlock = BlockAssertions.createStringSequenceBlock(0, 10);
    Block hashBlock = TypeUtils.getHashBlock(ImmutableList.of(DOUBLE, VARCHAR), valuesBlock, stringValuesBlock);
    int[] hashChannels = { 0, 1 };
    GroupByHash groupByHash = createGroupByHash(TEST_SESSION, ImmutableList.of(DOUBLE, VARCHAR), hashChannels, Optional.of(2), 100, JOIN_COMPILER);
    groupByHash.getGroupIds(new Page(valuesBlock, stringValuesBlock, hashBlock)).process();
    Block testValuesBlock = BlockAssertions.createDoublesBlock((double) 3);
    Block testStringValuesBlock = BlockAssertions.createStringsBlock("3");
    Block testHashBlock = TypeUtils.getHashBlock(ImmutableList.of(DOUBLE, VARCHAR), testValuesBlock, testStringValuesBlock);
    assertTrue(groupByHash.contains(0, new Page(testValuesBlock, testStringValuesBlock, testHashBlock), hashChannels));
}

Example 3 with BlockAssertions.createStringSequenceBlock

use of com.facebook.presto.block.BlockAssertions.createStringSequenceBlock in project presto by prestodb.

the class TestGroupByHash method testAppendTo.

@Test
public void testAppendTo() {
    Block valuesBlock = BlockAssertions.createStringSequenceBlock(0, 100);
    Block hashBlock = TypeUtils.getHashBlock(ImmutableList.of(VARCHAR), valuesBlock);
    GroupByHash groupByHash = createGroupByHash(TEST_SESSION, ImmutableList.of(VARCHAR), new int[] { 0 }, Optional.of(1), 100, JOIN_COMPILER);
    Work<GroupByIdBlock> work = groupByHash.getGroupIds(new Page(valuesBlock, hashBlock));
    work.process();
    GroupByIdBlock groupIds = work.getResult();
    for (int i = 0; i < groupIds.getPositionCount(); i++) {
        assertEquals(groupIds.getGroupId(i), i);
    }
    assertEquals(groupByHash.getGroupCount(), 100);
    PageBuilder pageBuilder = new PageBuilder(groupByHash.getTypes());
    for (int i = 0; i < groupByHash.getGroupCount(); i++) {
        pageBuilder.declarePosition();
        groupByHash.appendValuesTo(i, pageBuilder, 0);
    }
    Page page = pageBuilder.build();
    // Ensure that all blocks have the same positionCount
    for (int i = 0; i < groupByHash.getTypes().size(); i++) {
        assertEquals(page.getBlock(i).getPositionCount(), 100);
    }
    assertEquals(page.getPositionCount(), 100);
    BlockAssertions.assertBlockEquals(VARCHAR, page.getBlock(0), valuesBlock);
    BlockAssertions.assertBlockEquals(BIGINT, page.getBlock(1), hashBlock);
}