Package org.apache.drill.common.logical.data

Examples of org.apache.drill.common.logical.data.LogicalOperator

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    return new DrillLimitRel(getCluster(), traitSet, sole(inputs), offset, fetch);
  }

  @Override
  public LogicalOperator implement(DrillImplementor implementor) {
    LogicalOperator inputOp = implementor.visitChild(this, 0, getChild());

    // First offset to include into results (inclusive). Null implies it is starting from offset 0
    int first = offset != null ? Math.max(0, RexLiteral.intValue(offset)) : 0;

    // Last offset to stop including into results (exclusive), translating fetch row counts into an offset.
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      planBuilder.addStorageEngine(table.getStorageEngineName(), table.getStorageEngineConfig());
    }
  }

  public void go(DrillRel root) {
    LogicalOperator rootLOP = root.implement(this);
    rootLOP.accept(new AddOpsVisitor(), null);
  }
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    assert isUnique(fields);
    final int leftCount = left.getRowType().getFieldCount();
    final List<String> leftFields = fields.subList(0, leftCount);
    final List<String> rightFields = fields.subList(leftCount, fields.size());

    final LogicalOperator leftOp = implementInput(implementor, 0, 0, left);
    final LogicalOperator rightOp = implementInput(implementor, 1, leftCount, right);

    Join.Builder builder = Join.builder();
    builder.type(joinType);
    builder.left(leftOp);
    builder.right(rightOp);
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   * @param offset
   * @param input
   * @return
   */
  private LogicalOperator implementInput(DrillImplementor implementor, int i, int offset, RelNode input) {
    final LogicalOperator inputOp = implementor.visitChild(this, i, input);
    assert uniqueFieldNames(input.getRowType());
    final List<String> fields = getRowType().getFieldNames();
    final List<String> inputFields = input.getRowType().getFieldNames();
    final List<String> outputFields = fields.subList(offset, offset + inputFields.size());
    if (!outputFields.equals(inputFields)) {
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    return new DrillWindowRel(getCluster(), traitSet, sole(inputs), constants, getRowType(), windows);
  }

  @Override
  public LogicalOperator implement(DrillImplementor implementor) {
    final LogicalOperator inputOp = implementor.visitChild(this, 0, getChild());
    org.apache.drill.common.logical.data.Window.Builder builder = new org.apache.drill.common.logical.data.Window.Builder();
    final List<String> fields = getRowType().getFieldNames();
    final List<String> childFields = getChild().getRowType().getFieldNames();
    for (Window window : windows) {
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    return new DrillScreenRel(getCluster(), traitSet, sole(inputs));
  }

  @Override
  public LogicalOperator implement(DrillImplementor implementor) {
    LogicalOperator childOp = implementor.visitChild(this, 0, getChild());
    return Store.builder().setInput(childOp).storageEngine("--SCREEN--").build();
  }
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Related Classes of org.apache.drill.common.logical.data.LogicalOperator

  • org.apache.drill.exec.planner.logical.DrillFilterRel
  • org.apache.drill.exec.planner.logical.DrillImplementor
  • org.apache.drill.exec.planner.logical.DrillJoinRel
  • org.apache.drill.exec.planner.logical.DrillLimitRel
  • org.apache.drill.exec.planner.logical.DrillProjectRel
  • org.apache.drill.exec.planner.logical.DrillScreenRel
  • org.apache.drill.exec.planner.logical.DrillWindowRel
  • org.apache.drill.exec.planner.logical.DrillWriterRel
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