Package com.facebook.presto.block

Examples of com.facebook.presto.block.Block

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    }

    @Test
    public void testMixedNullAndNonNullPositions()
    {
        Block alternatingNullsBlock = createAlternatingNullsBlock(getSequenceBlock(0, 10));
        assertAggregation(getFunction(), getExpectedValueIncludingNulls(0, 10, 20), 20, alternatingNullsBlock);
    }
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            if (page.getPositionCount() > 0) {
                aggregation.addInput(page);
            }
        }

        Block block = aggregation.evaluateFinal();
        return BlockAssertions.getOnlyValue(block);
    }
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            if (page.getPositionCount() > 0) {
                partialAggregation.addInput(page);
            }
        }

        Block partialBlock = partialAggregation.evaluateIntermediate();

        Accumulator finalAggregation = function.createIntermediateAggregation();
        finalAggregation.addIntermediate(partialBlock);

        Block finalBlock = finalAggregation.evaluateFinal();
        return BlockAssertions.getOnlyValue(finalBlock);
    }
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        DynamicSliceOutput sliceOutput = new DynamicSliceOutput(1024);
        BlockEncoding blockEncoding = new RunLengthEncoder(sliceOutput).append(tuples).finish();
        SliceInput sliceInput = sliceOutput.slice().getInput();

        Block block = blockEncoding.readBlock(sliceInput);
        assertInstanceOf(block, RunLengthEncodedBlock.class);
        RunLengthEncodedBlock rleBlock = (RunLengthEncodedBlock) block;
        assertEquals(rleBlock.getSingleValue(), createTuple("alice"));
        assertEquals(rleBlock.getPositionCount(), 2);
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                        0.5));
    }

    private static Page createPage(Double[] values, double percentile)
    {
        Block valuesBlock;
        Block percentilesBlock;

        if (values.length == 0) {
            valuesBlock = new UncompressedBlock(0, SINGLE_DOUBLE, EMPTY_SLICE);
            percentilesBlock = new UncompressedBlock(0, SINGLE_DOUBLE, EMPTY_SLICE);
        }
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        return new Page(valuesBlock, percentilesBlock);
    }

    private static Page createPage(Long[] values, double percentile)
    {
        Block valuesBlock;
        Block percentilesBlock;

        if (values.length == 0) {
            valuesBlock = new UncompressedBlock(0, SINGLE_LONG, EMPTY_SLICE);
            percentilesBlock = new UncompressedBlock(0, SINGLE_DOUBLE, EMPTY_SLICE);
        }
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    private static Page createPage(Long[] values, Long[] weights, double percentile)
    {
        Preconditions.checkArgument(values.length == weights.length, "values.length must match weights.length");

        Block valuesBlock;
        Block weightsBlock;
        Block percentilesBlock;

        if (values.length == 0) {
            valuesBlock = new UncompressedBlock(0, SINGLE_LONG, EMPTY_SLICE);
            weightsBlock = new UncompressedBlock(0, SINGLE_LONG, EMPTY_SLICE);
            percentilesBlock = new UncompressedBlock(0, SINGLE_DOUBLE, EMPTY_SLICE);
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    private static Page createPage(Double[] values, Long[] weights, double percentile)
    {
        Preconditions.checkArgument(values.length == weights.length, "values.length must match weights.length");

        Block valuesBlock;
        Block weightsBlock;
        Block percentilesBlock;

        if (values.length == 0) {
            valuesBlock = new UncompressedBlock(0, SINGLE_DOUBLE, EMPTY_SLICE);
            weightsBlock = new UncompressedBlock(0, SINGLE_LONG, EMPTY_SLICE);
            percentilesBlock = new UncompressedBlock(0, SINGLE_DOUBLE, EMPTY_SLICE);
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        assertNotNull(output);
        assertEquals(output.getPositionCount(), 1);
        assertEquals(output.getChannelCount(), 1);

        Block block = output.getBlock(0);
        assertEquals(block.getPositionCount(), 1);

        BlockCursor cursor = block.cursor();
        assertTrue(cursor.advanceNextPosition());
        if (cursor.isNull()) {
            return null;
        }
        else {
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                .build();

        DynamicSliceOutput sliceOutput = new DynamicSliceOutput(1024);
        BlockEncoding blockEncoding = new UncompressedBlockEncoding(SINGLE_VARBINARY);
        blockEncoding.writeBlock(sliceOutput, expectedBlock);
        Block actualBlock = blockEncoding.readBlock(sliceOutput.slice().getInput());
        BlockAssertions.assertBlockEquals(actualBlock, expectedBlock);
    }
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Related Classes of com.facebook.presto.block.Block

  • com.facebook.presto.metadata.ColumnFileHandle
  • com.facebook.presto.operator.aggregation.AbstractTestAggregationFunction
  • com.facebook.presto.operator.aggregation.AbstractTestApproximateAggregationFunction
  • com.facebook.presto.operator.aggregation.AbstractTestApproximateCountDistinct
  • com.facebook.presto.operator.aggregation.AggregationTestUtils
  • com.facebook.presto.operator.aggregation.TestApproximatePercentileAggregation
  • com.facebook.presto.operator.aggregation.TestCountAggregation
  • com.facebook.presto.operator.AggregationOperator$FixedWidthAggregator
  • com.facebook.presto.operator.LimitOperator
  • com.facebook.presto.operator.MarkDistinctOperator
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