Examples of org.eigenbase.reltype.RelDataTypeFactory$FieldInfoBuilder

org.eigenbase.reltype.RelDataTypeFactory
Implementation of {@link FieldInfo} that provides a fluid API to builda list of fields.

    this.dataContext = dataContext;
  }


  private String compile(RexBuilder rexBuilder, List<RexNode> constExps,
      RexToLixTranslator.InputGetter getter) {
    final RelDataTypeFactory typeFactory = rexBuilder.getTypeFactory();
    final RelDataType emptyRowType = typeFactory.builder().build();
    return compile(rexBuilder, constExps, getter, emptyRowType);
  }

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        + "<MAP>[<VALUE>]";
  }


  @Override
  public RelDataType inferReturnType(SqlOperatorBinding opBinding) {
    final RelDataTypeFactory typeFactory = opBinding.getTypeFactory();
    final RelDataType operandType = opBinding.getOperandType(0);
    switch (operandType.getSqlTypeName()) {
    case ARRAY:
      return typeFactory.createTypeWithNullability(
          operandType.getComponentType(), true);
    case MAP:
      return typeFactory.createTypeWithNullability(operandType.getValueType(),
          true);
    case ANY:
      return typeFactory.createSqlType(SqlTypeName.ANY);
    default:
      throw new AssertionError();
    }
  }

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      AggregateRelBase oldAggRel,
      AggregateCall oldCall,
      List<AggregateCall> newCalls,
      Map<AggregateCall, RexNode> aggCallMapping) {
    final int nGroups = oldAggRel.getGroupCount();
    RelDataTypeFactory typeFactory =
        oldAggRel.getCluster().getTypeFactory();
    RexBuilder rexBuilder = oldAggRel.getCluster().getRexBuilder();
    int iAvgInput = oldCall.getArgList().get(0);
    RelDataType avgInputType =
        getFieldType(
            oldAggRel.getChild(),
            iAvgInput);
    RelDataType sumType =
        typeFactory.createTypeWithNullability(
            avgInputType,
            avgInputType.isNullable() || nGroups == 0);
    // SqlAggFunction sumAgg = new SqlSumAggFunction(sumType);
    SqlAggFunction sumAgg = new SqlSumEmptyIsZeroAggFunction(sumType);
    AggregateCall sumCall =

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      AggregateRelBase oldAggRel,
      AggregateCall oldCall,
      List<AggregateCall> newCalls,
      Map<AggregateCall, RexNode> aggCallMapping) {
    final int nGroups = oldAggRel.getGroupCount();
    RelDataTypeFactory typeFactory =
        oldAggRel.getCluster().getTypeFactory();
    RexBuilder rexBuilder = oldAggRel.getCluster().getRexBuilder();
    int arg = oldCall.getArgList().get(0);
    RelDataType argType =
        getFieldType(
            oldAggRel.getChild(),
            arg);
    RelDataType sumType =
        typeFactory.createTypeWithNullability(
            argType, argType.isNullable());
    SqlAggFunction sumZeroAgg = new SqlSumEmptyIsZeroAggFunction(sumType);
    AggregateCall sumZeroCall =
        new AggregateCall(
            sumZeroAgg,

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    //   power(
    //     (sum(x * x) - sum(x) * sum(x) / count(x))
    //     / nullif(count(x) - 1, 0),
    //     .5)
    final int nGroups = oldAggRel.getGroupCount();
    RelDataTypeFactory typeFactory =
        oldAggRel.getCluster().getTypeFactory();
    final RexBuilder rexBuilder = oldAggRel.getCluster().getRexBuilder();


    assert oldCall.getArgList().size() == 1 : oldCall.getArgList();
    final int argOrdinal = oldCall.getArgList().get(0);
    final RelDataType argType =
        getFieldType(
            oldAggRel.getChild(),
            argOrdinal);


    // final RexNode argRef = inputExprs.get(argOrdinal);
    RexNode argRef = rexBuilder.makeCall(CastHighOp, inputExprs.get(argOrdinal));
    inputExprs.set(argOrdinal, argRef);


    final RexNode argSquared =
        rexBuilder.makeCall(
            SqlStdOperatorTable.MULTIPLY, argRef, argRef);
    final int argSquaredOrdinal = lookupOrAdd(inputExprs, argSquared);


    final RelDataType sumType =
        typeFactory.createTypeWithNullability(
            argType,
            true);
    final AggregateCall sumArgSquaredAggCall =
        new AggregateCall(
            new SqlSumAggFunction(sumType),

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  {
  @Test
  /** Tests that we can analyze a program with no inputs or outputs. */
  public void testAnalyzeProgram()
    {
    final RelDataTypeFactory typeFactory = new FieldTypeFactory();
    final RelDataType inputType = typeFactory.createStructType( new RelDataTypeFactory.FieldInfoBuilder() );
    final RelDataType outputType = typeFactory.createStructType( new RelDataTypeFactory.FieldInfoBuilder() );
    final RexProgram program = new RexProgram(
      inputType,
      Collections.<RexNode>emptyList(),
      Collections.<RexLocalRef>emptyList(),
      null,

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  @Test
  /** Tests that we can analyze a program with no inputs that outputs two
   * constants. */
  public void testAnalyzeTwoConstantProgram()
    {
    final RelDataTypeFactory typeFactory = new FieldTypeFactory();
    final RelDataType inputType = typeFactory.createStructType( new RelDataTypeFactory.FieldInfoBuilder() );
    final RexBuilder builder = new RexBuilder( typeFactory );
    final RexProgramBuilder programBuilder = new RexProgramBuilder( inputType, builder );
    programBuilder.addProject( builder.makeExactLiteral( BigDecimal.ONE ), "x" );
    programBuilder.addProject( builder.makeCharLiteral( new NlsString( "foo", null, null ) ), "y" );
    final RexProgram program = programBuilder.getProgram();

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