Examples with ReduceOperator - io.dingodb.exec.operator.ReduceOperator

Example 1 with ReduceOperator

use of io.dingodb.exec.operator.ReduceOperator in project dingo by dingodb.

the class DingoJobVisitor method visit.

@Override
public Collection<Output> visit(@Nonnull DingoReduce rel) {
    Collection<Output> inputs = dingo(rel.getInput()).accept(this);
    int size = inputs.size();
    if (size <= 1) {
        return inputs;
    }
    Operator operator;
    operator = new ReduceOperator(inputs.size(), rel.getKeyMapping(), rel.getAggList());
    operator.setId(idGenerator.get());
    Output one = inputs.iterator().next();
    Task task = one.getTask();
    task.putOperator(operator);
    int i = 0;
    for (Output input : inputs) {
        assert input.getTask().equals(task) : "Operator linked must be in the same task.";
        input.setLink(operator.getInput(i));
        ++i;
    }
    return operator.getOutputs();
}

Also used : SumUpOperator(io.dingodb.exec.operator.SumUpOperator) AggregateOperator(io.dingodb.exec.operator.AggregateOperator) SortOperator(io.dingodb.exec.operator.SortOperator) RootOperator(io.dingodb.exec.operator.RootOperator) PartScanOperator(io.dingodb.exec.operator.PartScanOperator) SendOperator(io.dingodb.exec.operator.SendOperator) ReceiveOperator(io.dingodb.exec.operator.ReceiveOperator) ProjectOperator(io.dingodb.exec.operator.ProjectOperator) ValuesOperator(io.dingodb.exec.operator.ValuesOperator) PartUpdateOperator(io.dingodb.exec.operator.PartUpdateOperator) ReduceOperator(io.dingodb.exec.operator.ReduceOperator) Operator(io.dingodb.exec.base.Operator) GetByKeysOperator(io.dingodb.exec.operator.GetByKeysOperator) PartitionOperator(io.dingodb.exec.operator.PartitionOperator) PartDeleteOperator(io.dingodb.exec.operator.PartDeleteOperator) PartInsertOperator(io.dingodb.exec.operator.PartInsertOperator) CoalesceOperator(io.dingodb.exec.operator.CoalesceOperator) Task(io.dingodb.exec.base.Task) Output(io.dingodb.exec.base.Output) ReduceOperator(io.dingodb.exec.operator.ReduceOperator) OutputHint(io.dingodb.exec.base.OutputHint)

Aggregations

Operator (io.dingodb.exec.base.Operator)1 Output (io.dingodb.exec.base.Output)1 OutputHint (io.dingodb.exec.base.OutputHint)1 Task (io.dingodb.exec.base.Task)1 AggregateOperator (io.dingodb.exec.operator.AggregateOperator)1 CoalesceOperator (io.dingodb.exec.operator.CoalesceOperator)1 GetByKeysOperator (io.dingodb.exec.operator.GetByKeysOperator)1 PartDeleteOperator (io.dingodb.exec.operator.PartDeleteOperator)1 PartInsertOperator (io.dingodb.exec.operator.PartInsertOperator)1 PartScanOperator (io.dingodb.exec.operator.PartScanOperator)1 PartUpdateOperator (io.dingodb.exec.operator.PartUpdateOperator)1 PartitionOperator (io.dingodb.exec.operator.PartitionOperator)1 ProjectOperator (io.dingodb.exec.operator.ProjectOperator)1 ReceiveOperator (io.dingodb.exec.operator.ReceiveOperator)1 ReduceOperator (io.dingodb.exec.operator.ReduceOperator)1 RootOperator (io.dingodb.exec.operator.RootOperator)1 SendOperator (io.dingodb.exec.operator.SendOperator)1 SortOperator (io.dingodb.exec.operator.SortOperator)1 SumUpOperator (io.dingodb.exec.operator.SumUpOperator)1 ValuesOperator (io.dingodb.exec.operator.ValuesOperator)1