@Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("{");
        if (getScalarValue() != null)
            sb.append("ScalarValue: ").append(getScalarValue()).append(",");
        if (getTimeSeriesValue() != null)
            sb.append("TimeSeriesValue: ").append(getTimeSeriesValue()).append(",");
        if (getArrayValue() != null)
            sb.append("ArrayValue: ").append(getArrayValue()).append(",");
        if (getRowValue() != null)
            sb.append("RowValue: ").append(getRowValue()).append(",");
        if (getNullValue() != null)
            sb.append("NullValue: ").append(getNullValue());
        sb.append("}");
        return sb.toString();
    }
Returns a string representation of this object. This is useful for testing and debugging. Sensitive data will be
redacted from this string using a placeholder value.

@return A string representation of this object.

@see java.lang.Object#toString()
aws-java-sdk-timestreamquery/src/main/java/com/amazonaws/services/timestreamquery/model/Datum.java