Package com.facebook.presto.block.rle

Examples of com.facebook.presto.block.rle.RunLengthEncodedBlock

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    @Test
    public void testAllPositionsNull()
            throws Exception
    {
        Block block = new RunLengthEncodedBlock(nullTuple(getSequenceBlock(0, 10).getTupleInfo()), 11);
        testMultiplePositions(block, getExpectedValue(0, 0), 10);
    }
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    @Test
    public void testVectorAllPositionsNull()
            throws Exception
    {
        Block nullsBlock = new RunLengthEncodedBlock(nullTuple(getSequenceBlock(0, 1).getTupleInfo()), 11);
        testVectorMultiplePositions(nullsBlock, getExpectedValue(0, 0));
    }
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            valuesBlock = new UncompressedBlock(0, TupleInfo.SINGLE_DOUBLE, Slices.EMPTY_SLICE);
            percentilesBlock = new UncompressedBlock(0, TupleInfo.SINGLE_DOUBLE, Slices.EMPTY_SLICE);
        }
        else {
            valuesBlock = createDoublesBlock(values);
            percentilesBlock = new RunLengthEncodedBlock(createTuple(percentile), values.length);
        }

        return new Page(valuesBlock, percentilesBlock);
    }
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            valuesBlock = new UncompressedBlock(0, TupleInfo.SINGLE_LONG, Slices.EMPTY_SLICE);
            percentilesBlock = new UncompressedBlock(0, TupleInfo.SINGLE_DOUBLE, Slices.EMPTY_SLICE);
        }
        else {
            valuesBlock = createLongsBlock(values);
            percentilesBlock = new RunLengthEncodedBlock(createTuple(percentile), values.length);
        }

        return new Page(valuesBlock, percentilesBlock);
    }
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            percentilesBlock = new UncompressedBlock(0, TupleInfo.SINGLE_DOUBLE, Slices.EMPTY_SLICE);
        }
        else {
            valuesBlock = createLongsBlock(values);
            weightsBlock = createLongsBlock(weights);
            percentilesBlock = new RunLengthEncodedBlock(createTuple(percentile), values.length);
        }

        return new Page(valuesBlock, weightsBlock, percentilesBlock);
    }
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            percentilesBlock = new UncompressedBlock(0, TupleInfo.SINGLE_DOUBLE, Slices.EMPTY_SLICE);
        }
        else {
            valuesBlock = createDoublesBlock(values);
            weightsBlock = createLongsBlock(weights);
            percentilesBlock = new RunLengthEncodedBlock(createTuple(percentile), values.length);
        }

        return new Page(valuesBlock, weightsBlock, percentilesBlock);
    }
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        return this;
    }

    private void writeBlock()
    {
        RunLengthEncodedBlock block = new RunLengthEncodedBlock(lastValue, positionCount);

        encoding.writeBlock(sliceOutput, block);
        lastValue = null;
        positionCount = 0;
    }
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    {
        BlockBuilder blockBuilder = VARCHAR.createBlockBuilder(new BlockBuilderStatus());
        VARCHAR.writeString(blockBuilder, "alice");
        Block value = blockBuilder.build();

        RunLengthEncodedBlock expectedBlock = new RunLengthEncodedBlock(value, 11);

        DynamicSliceOutput sliceOutput = new DynamicSliceOutput(1024);
        RunLengthBlockEncoding blockEncoding = new RunLengthBlockEncoding(new VariableWidthBlockEncoding());
        blockEncoding.writeBlock(sliceOutput, expectedBlock);
        RunLengthEncodedBlock actualBlock = blockEncoding.readBlock(sliceOutput.slice().getInput());
        assertTrue(positionEqualsPosition(VARCHAR, actualBlock, 0, expectedBlock, 0));
        BlockAssertions.assertBlockEquals(VARCHAR, actualBlock, expectedBlock);
    }
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        BlockEncoding blockEncoding = new RunLengthEncoder(sliceOutput, VARCHAR).append(expectedBlock).finish();
        SliceInput sliceInput = sliceOutput.slice().getInput();

        Block block = blockEncoding.readBlock(sliceInput);
        assertInstanceOf(block, RunLengthEncodedBlock.class);
        RunLengthEncodedBlock rleBlock = (RunLengthEncodedBlock) block;
        assertTrue(positionEqualsPosition(VARCHAR, rleBlock, 0, expectedBlock, 0));
        assertEquals(rleBlock.getPositionCount(), 2);
        assertEquals(VARCHAR.getSlice(rleBlock, 0).toStringUtf8(), "alice");

        block = blockEncoding.readBlock(sliceInput);
        assertInstanceOf(block, RunLengthEncodedBlock.class);
        rleBlock = (RunLengthEncodedBlock) block;
        assertTrue(positionEqualsPosition(VARCHAR, rleBlock, 0, expectedBlock, 2));
        assertEquals(rleBlock.getPositionCount(), 4);
        assertEquals(VARCHAR.getSlice(rleBlock, 0).toStringUtf8(), "bob");

        block = blockEncoding.readBlock(sliceInput);
        assertInstanceOf(block, RunLengthEncodedBlock.class);
        rleBlock = (RunLengthEncodedBlock) block;
        assertTrue(positionEqualsPosition(VARCHAR, rleBlock, 0, expectedBlock, 6));
        assertEquals(rleBlock.getPositionCount(), 6);
        assertEquals(VARCHAR.getSlice(rleBlock, 0).toStringUtf8(), "charlie");

        assertFalse(sliceInput.isReadable());
    }
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    @Test
    public void testAllPositionsNull()
            throws Exception
    {
        Block block = new RunLengthEncodedBlock(nullTuple(getSequenceBlock(0, 10).getTupleInfo()), 10);
        assertAggregation(getFunction(), getExpectedValueIncludingNulls(0, 0, 10), 10, block);
    }
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Related Classes of com.facebook.presto.block.rle.RunLengthEncodedBlock

  • com.facebook.presto.block.TestRunLengthEncodedBlock
  • com.facebook.presto.operator.aggregation.AbstractTestAggregationFunction
  • com.facebook.presto.operator.aggregation.AggregationTestUtils
  • com.facebook.presto.operator.aggregation.TestApproximatePercentileAggregation
  • com.facebook.presto.operator.aggregation.TestCountAggregation
  • com.facebook.presto.serde.RunLengthBlockEncoding
  • com.facebook.presto.serde.RunLengthEncoder
  • com.facebook.presto.serde.TestRunLengthEncodedBlockSerde
  • io.airlift.units.DataSize
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