Examples of org.apache.drill.common.expression.FieldReference$De

Package org.apache.drill.common.expression

Examples of org.apache.drill.common.expression.FieldReference$De

org.apache.drill.common.expression.FieldReference

  protected void createKeysAndExprs() {
    final List<String> childFields = getChild().getRowType().getFieldNames();
    final List<String> fields = getRowType().getFieldNames();


    for (int group : BitSets.toIter(groupSet)) {
      FieldReference fr = new FieldReference(childFields.get(group), ExpressionPosition.UNKNOWN);
      keys.add(new NamedExpression(fr, fr));
    }


    for (Ord<AggregateCall> aggCall : Ord.zip(aggCalls)) {
      int aggExprOrdinal = groupSet.cardinality() + aggCall.i;
      FieldReference ref = new FieldReference(fields.get(aggExprOrdinal));
      LogicalExpression expr = toDrill(aggCall.e, childFields);
      NamedExpression ne = new NamedExpression(expr, ref);
      aggExprs.add(ne);


      if (getOperatorPhase() == OperatorPhase.PHASE_1of2) {

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  }


  protected LogicalExpression toDrill(AggregateCall call, List<String> fn) {
    List<LogicalExpression> args = Lists.newArrayList();
    for (Integer i : call.getArgList()) {
      args.add(new FieldReference(fn.get(i)));
    }


    // for count(1).
    if (args.isEmpty()) {
      args.add(new ValueExpressions.LongExpression(1l));

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    materializedValueFields = new MaterializedField[valueFieldIds.size()];


    if (valueFieldIds.size() > 0) {
      int i = 0;
      FieldReference ref = new FieldReference("dummy", ExpressionPosition.UNKNOWN, valueFieldIds.get(0).getIntermediateType());
      for (TypedFieldId id : valueFieldIds) {
        materializedValueFields[i++] = MaterializedField.create(ref, id.getIntermediateType());
      }
    }

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    Window window = windows.get(0);
    List<NamedExpression> withins = Lists.newArrayList();
    List<NamedExpression> aggs = Lists.newArrayList();
    for (int group : BitSets.toIter(window.groupSet)) {
      FieldReference fr = new FieldReference(childFields.get(group), ExpressionPosition.UNKNOWN);
      withins.add(new NamedExpression(fr, fr));
    }


    for (AggregateCall aggCall : window.getAggregateCalls(this)) {
      FieldReference ref = new FieldReference(aggCall.getName());
      LogicalExpression expr = toDrill(aggCall, childFields);
      aggs.add(new NamedExpression(expr, ref));
    }


    WindowPOP windowPOP = new WindowPOP(

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  }


  protected LogicalExpression toDrill(AggregateCall call, List<String> fn) {
    List<LogicalExpression> args = Lists.newArrayList();
    for (Integer i : call.getArgList()) {
      args.add(new FieldReference(fn.get(i)));
    }


    // for count(1).
    if (args.isEmpty()) {
      args.add(new ValueExpressions.LongExpression(1l));

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      writer.setValueCount(count);
    }
  }


  private FieldReference getRef(NamedExpression e) {
    FieldReference ref = e.getRef();
    PathSegment seg = ref.getRootSegment();


    return ref;
  }

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          incoming.getSchema().getColumn(
              incoming.getValueVectorId(
                  popConfig.getColumn()).getFieldIds()[0]).getValueClass(),
          incoming.getValueVectorId(popConfig.getColumn()).getFieldIds()).getValueVector());


    NamedExpression namedExpression = new NamedExpression(popConfig.getColumn(), new FieldReference(popConfig.getColumn()));
    LogicalExpression expr = ExpressionTreeMaterializer.materialize(namedExpression.getExpr(), incoming, collector, context.getFunctionRegistry(), true);
    ValueVectorReadExpression vectorRead = (ValueVectorReadExpression) expr;
    TypedFieldId id = vectorRead.getFieldId();
    Preconditions.checkNotNull(incoming);

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    List<NamedExpression> exprs = Lists.newArrayList();
    for (MaterializedField field : incoming.getSchema()) {
      if (field.getPath().equals(popConfig.getColumn())) {
        continue;
      }
      exprs.add(new NamedExpression(field.getPath(), new FieldReference(field.getPath())));
    }
    return exprs;
  }

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        NamedExpression rightExpr[] = new NamedExpression[conditionsSize];
        NamedExpression leftExpr[] = new NamedExpression[conditionsSize];


        // Create named expressions from the conditions
        for (int i = 0; i < conditionsSize; i++) {
            rightExpr[i] = new NamedExpression(conditions.get(i).getRight(), new FieldReference("build_side_" + i ));
            leftExpr[i] = new NamedExpression(conditions.get(i).getLeft(), new FieldReference("probe_side_" + i));


            // Hash join only supports equality currently.
            assert conditions.get(i).getRelationship().equals("==");
        }

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    List<Ordering> orderDefs = Lists.newArrayList();
    int i = 0;
    for (Ordering od : popConfig.getOrderings()) {
      SchemaPath sp = SchemaPath.getSimplePath("f" + i++);
      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);

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