Package org.eigenbase.rex

Examples of org.eigenbase.rex.RexBuilder

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  public static RelNode createProject(final ProjectFactory factory,
      final RelNode child, final List<Integer> posList) {
    if (Mappings.isIdentity(posList, child.getRowType().getFieldCount())) {
      return child;
    }
    final RexBuilder rexBuilder = child.getCluster().getRexBuilder();
    return factory.createProject(child,
        new AbstractList<RexNode>() {
          public int size() {
            return posList.size();
          }

          public RexNode get(int index) {
            final int pos = posList.get(index);
            return rexBuilder.makeInputRef(child, pos);
          }
        },
        null);
  }
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          new SqlToRelConverter(
              null,
              validator,
              catalogReader,
              getPlanner(),
              new RexBuilder(typeFactory),
              StandardConvertletTable.INSTANCE);
    }
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                new JavaRules.EnumerableTableAccessRel(
                    cluster, cluster.traitSetOf(EnumerableConvention.INSTANCE),
                    relOptTable, Object[].class);

            // "WHERE i > 1"
            final RexBuilder rexBuilder = cluster.getRexBuilder();
            final RexNode condition =
                rexBuilder.makeCall(SqlStdOperatorTable.GREATER_THAN,
                    rexBuilder.makeFieldAccess(
                        rexBuilder.makeRangeReference(tableRel), "i", true),
                    rexBuilder.makeExactLiteral(BigDecimal.ONE));
            final FilterRel filterRel =
                new FilterRel(cluster, tableRel, condition);

            // Specify that the result should be in Enumerable convention.
            final RelNode rootRel = filterRel;
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    OptiqCatalogReader catalogReader =
        new OptiqCatalogReader(prepareContext.getRootSchema(),
            prepareContext.config().caseSensitive(),
            prepareContext.getDefaultSchemaPath(),
            typeFactory);
    final RexBuilder rexBuilder = new RexBuilder(typeFactory);
    final RelOptPlanner planner =
        createPlanner(prepareContext,
            action.getConfig().getContext(),
            action.getConfig().getCostFactory());
    final RelOptQuery query = new RelOptQuery(planner);
    final RelOptCluster cluster =
        query.createCluster(rexBuilder.getTypeFactory(), rexBuilder);
    return action.apply(cluster, catalogReader,
        prepareContext.getRootSchema().plus(), statement);
  }
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    final JoinRelBase bottomJoin = call.rel(1);
    final RelNode relA = bottomJoin.getLeft();
    final RelNode relB = bottomJoin.getRight();
    final RelSubset relC = call.rel(2);
    final RelOptCluster cluster = topJoin.getCluster();
    final RexBuilder rexBuilder = cluster.getRexBuilder();

    if (relC.getConvention() != relA.getConvention()) {
      // relC could have any trait-set. But if we're matching say
      // EnumerableConvention, we're only interested in enumerable subsets.
      return;
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      super(context, catalogReader, resultConvention);
      this.schema = schema;
      this.prefer = prefer;
      this.planner = planner;
      this.typeFactory = typeFactory;
      this.rexBuilder = new RexBuilder(typeFactory);
    }
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    if (preds.leftInferredPredicates.isEmpty()
        && preds.rightInferredPredicates.isEmpty()) {
      return;
    }

    RexBuilder rB = join.getCluster().getRexBuilder();
    RelNode lChild = join.getLeft();
    RelNode rChild = join.getRight();

    if (preds.leftInferredPredicates.size() > 0) {
      RelNode curr = lChild;
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        && extraFields.isEmpty()) {
      return this;
    }
    List<RexNode> exprList = new ArrayList<RexNode>();
    List<String> nameList = new ArrayList<String>();
    RexBuilder rexBuilder = getCluster().getRexBuilder();
    final List<RelDataTypeField> fields = getRowType().getFieldList();

    // Project the subset of fields.
    for (int i : BitSets.toIter(fieldsUsed)) {
      RelDataTypeField field = fields.get(i);
      exprList.add(rexBuilder.makeInputRef(this, i));
      nameList.add(field.getName());
    }

    // Project nulls for the extra fields. (Maybe a sub-class table has
    // extra fields, but we don't.)
    for (RelDataTypeField extraField : extraFields) {
      exprList.add(
          rexBuilder.ensureType(
              extraField.getType(),
              rexBuilder.constantNull(),
              true));
      nameList.add(extraField.getName());
    }

    return new ProjectRel(
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        "unknown expression type " + expression.getNodeType());
  }

  private List<RexNode> toRex(
      RelNode child, FunctionExpression expression) {
    RexBuilder rexBuilder = cluster.getRexBuilder();
    List<RexNode> list =
        Collections.singletonList(
            rexBuilder.makeRangeReference(child));
    OptiqPrepareImpl.ScalarTranslator translator =
        OptiqPrepareImpl.EmptyScalarTranslator
            .empty(rexBuilder)
            .bind(expression.parameterList, list);
    final List<RexNode> rexList = new ArrayList<RexNode>();
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  List<RexNode> toRexList(
      FunctionExpression expression,
      RelNode... inputs) {
    List<RexNode> list = new ArrayList<RexNode>();
    RexBuilder rexBuilder = cluster.getRexBuilder();
    for (RelNode input : inputs) {
      list.add(rexBuilder.makeRangeReference(input));
    }
    return OptiqPrepareImpl.EmptyScalarTranslator.empty(rexBuilder)
        .bind(expression.parameterList, list)
        .toRexList(expression.body);
  }
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Related Classes of org.eigenbase.rex.RexBuilder

  • cascading.lingual.optiq.CalcProjectUtilTest
  • net.hydromatic.avatica.ByteString
  • net.hydromatic.optiq.prepare.LixToRelTranslator
  • net.hydromatic.optiq.prepare.OptiqPrepareImpl
  • net.hydromatic.optiq.prepare.OptiqPrepareImpl$OptiqPreparingStmt
  • net.hydromatic.optiq.prepare.PlannerImpl
  • net.hydromatic.optiq.tools.FrameworksTest
  • org.apache.drill.exec.planner.logical.DrillJoinRule
  • org.apache.drill.exec.planner.logical.DrillReduceAggregatesRule
  • org.apache.drill.exec.planner.logical.RewriteProjectRel
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