Examples with PartitionStrategy io.dingodb.exec.partition.PartitionStrategy used on opensource projects

Example 1 with PartitionStrategy

use of io.dingodb.exec.partition.PartitionStrategy in project dingo by dingodb.

the class DingoJobVisitor method visit.

@Override
public Collection<Output> visit(@Nonnull DingoDistributedValues rel) {
    List<Output> outputs = new LinkedList<>();
    String tableName = getSimpleName(rel.getTable());
    final Map<String, Location> partLocations = Services.META.getPartLocations(tableName);
    final PartitionStrategy ps = new SimpleHashStrategy(partLocations.size());
    final TableDefinition td = Services.META.getTableDefinition(tableName);
    Map<String, List<Object[]>> partMap = ps.partTuples(rel.getValues(), td.getKeyMapping());
    for (Map.Entry<String, List<Object[]>> entry : partMap.entrySet()) {
        Object partId = entry.getKey();
        ValuesOperator operator = new ValuesOperator(entry.getValue());
        operator.setId(idGenerator.get());
        OutputHint hint = new OutputHint();
        hint.setPartId(partId);
        Location location = partLocations.get(partId);
        hint.setLocation(location);
        operator.getSoleOutput().setHint(hint);
        Task task = job.getOrCreate(location);
        task.putOperator(operator);
        outputs.addAll(operator.getOutputs());
    }
    return outputs;
}

Example 2 with PartitionStrategy

use of io.dingodb.exec.partition.PartitionStrategy in project dingo by dingodb.

the class DingoJobVisitor method visit.

@Override
public Collection<Output> visit(@Nonnull DingoPartition rel) {
    Collection<Output> inputs = dingo(rel.getInput()).accept(this);
    String tableName = getSimpleName(rel.getTable());
    List<Output> outputs = new LinkedList<>();
    final Map<String, Location> partLocations = Services.META.getPartLocations(tableName);
    final TableDefinition td = Services.META.getTableDefinition(tableName);
    final PartitionStrategy ps = new SimpleHashStrategy(partLocations.size());
    for (Output input : inputs) {
        Task task = input.getTask();
        PartitionOperator operator = new PartitionOperator(ps, td.getKeyMapping());
        operator.setId(idGenerator.get());
        operator.createOutputs(tableName, partLocations);
        task.putOperator(operator);
        input.setLink(operator.getInput(0));
        outputs.addAll(operator.getOutputs());
    }
    return outputs;
}

Example 3 with PartitionStrategy

use of io.dingodb.exec.partition.PartitionStrategy in project dingo by dingodb.

the class DingoJobVisitor method visit.

@Override
public Collection<Output> visit(@Nonnull DingoGetByKeys rel) {
    String tableName = getSimpleName(rel.getTable());
    final Map<String, Location> partLocations = Services.META.getPartLocations(tableName);
    final TableDefinition td = Services.META.getTableDefinition(tableName);
    final PartitionStrategy ps = new SimpleHashStrategy(partLocations.size());
    final TableId tableId = new TableId(Services.META.getTableKey(tableName));
    Map<String, List<Object[]>> partMap = ps.partKeyTuples(rel.getKeyTuples());
    List<Output> outputs = new LinkedList<>();
    for (Map.Entry<String, List<Object[]>> entry : partMap.entrySet()) {
        final Object partId = entry.getKey();
        GetByKeysOperator operator = new GetByKeysOperator(tableId, partId, td.getTupleSchema(), td.getKeyMapping(), entry.getValue(), rel.getSelection());
        operator.setId(idGenerator.get());
        Task task = job.getOrCreate(partLocations.get(entry.getKey()));
        task.putOperator(operator);
        operator.getSoleOutput().setHint(OutputHint.of(tableName, partId));
        outputs.addAll(operator.getOutputs());
    }
    return outputs;
}