Method SetToMin

be/src/exprs/expr-value.h:116–162

Sets the value for type to min and returns a pointer to the data

  /// Sets the value for type to min and returns a pointer to the data
  void* SetToMin(const ColumnType& type) {
    switch (type.type) {
      case TYPE_NULL:
        return NULL;
      case TYPE_BOOLEAN:
        bool_val = false;
        return &bool_val;
      case TYPE_TINYINT:
        tinyint_val = std::numeric_limits<int8_t>::min();
        return &tinyint_val;
      case TYPE_SMALLINT:
        smallint_val = std::numeric_limits<int16_t>::min();
        return &smallint_val;
      case TYPE_INT:
        int_val = std::numeric_limits<int32_t>::min();
        return &int_val;
      case TYPE_BIGINT:
        bigint_val = std::numeric_limits<int64_t>::min();
        return &bigint_val;
      case TYPE_DECIMAL:
        switch (type.GetByteSize()) {
          case 4:
            decimal4_val = -MAX_UNSCALED_DECIMAL4;
            return &decimal4_val;
          case 8:
            decimal8_val = -MAX_UNSCALED_DECIMAL8;
            return &decimal8_val;
          case 16:
            decimal16_val = -MAX_UNSCALED_DECIMAL16;
            return &decimal16_val;
        }
      case TYPE_FLOAT:
        // For floats and doubles, numeric_limits::min() is the smallest positive
        // representable value.
        float_val = -std::numeric_limits<float>::infinity();
        return &float_val;
      case TYPE_DOUBLE:
        double_val = -std::numeric_limits<double>::infinity();
        return &double_val;
      case TYPE_DATE:
        date_val = DateValue::MIN_DATE;
        return &date_val;
      default:
        DCHECK(false);
        return NULL;
    }
  }

  /// Sets the value for type to max and returns a pointer to the data
  void* SetToMax(const ColumnType& type) {