Package org.apache.drill.exec.physical.impl.sort

Examples of org.apache.drill.exec.physical.impl.sort.Sorter

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  VectorContainer sortedSamples = new VectorContainer();
    builder.build(context, sortedSamples);

    // Sort the records according the orderings given in the configuration

    Sorter sorter = SortBatch.createNewSorter(context, popConfig.getOrderings(), sortedSamples);
    SelectionVector4 sv4 = builder.getSv4();
    sorter.setup(context, sv4, sortedSamples);
    sorter.sort(sv4, sortedSamples);

    // Project every Nth record to a new vector container, where N = recordsSampled/(samplingFactor * partitions).
    // Uses the
    // the expressions from the Orderings to populate each column. There is one column for each Ordering in
    // popConfig.orderings.
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      orderDefs.add(new Ordering(od.getDirection(), new FieldReference(sp)));
    }

    // sort the data incoming samples.
    SelectionVector4 newSv4 = containerBuilder.getSv4();
    Sorter sorter = SortBatch.createNewSorter(context, orderDefs, allSamplesContainer);
    sorter.setup(context, newSv4, allSamplesContainer);
    sorter.sort(newSv4, allSamplesContainer);

    // Copy every Nth record from the samples into a candidate partition table, where N = totalSampledRecords/partitions
    // Attempt to push this to the distributed map. Only the first candidate to get pushed will be used.
    VectorContainer candidatePartitionTable = new VectorContainer();
    SampleCopier copier = null;
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  VectorContainer sortedSamples = new VectorContainer();
    builder.build(context, sortedSamples);

    // Sort the records according the orderings given in the configuration

    Sorter sorter = SortBatch.createNewSorter(context, popConfig.getOrderings(), sortedSamples);
    SelectionVector4 sv4 = builder.getSv4();
    sorter.setup(context, sv4, sortedSamples);
    sorter.sort(sv4, sortedSamples);

    // Project every Nth record to a new vector container, where N = recordsSampled/(samplingFactor * partitions).
    // Uses the
    // the expressions from the Orderings to populate each column. There is one column for each Ordering in
    // popConfig.orderings.
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      orderDefs.add(new Ordering(od.getDirection(), new FieldReference(sp)));
    }

    // sort the data incoming samples.
    SelectionVector4 newSv4 = containerBuilder.getSv4();
    Sorter sorter = SortBatch.createNewSorter(context, orderDefs, allSamplesContainer);
    sorter.setup(context, newSv4, allSamplesContainer);
    sorter.sort(newSv4, allSamplesContainer);

    // Copy every Nth record from the samples into a candidate partition table, where N = totalSampledRecords/partitions
    // Attempt to push this to the distributed map. Only the first candidate to get pushed will be used.
    VectorContainer candidatePartitionTable = new VectorContainer();
    SampleCopier copier = null;
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Related Classes of org.apache.drill.exec.physical.impl.sort.Sorter

  • org.apache.drill.exec.physical.impl.orderedpartitioner.OrderedPartitionRecordBatch
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