dictGet('name', ...) should check for XML dictionary 'name' if XML dict=name does not exists then use SQL dictionary from the currectDatabase()

{
    using Type = typename DataType::FieldType;
public:
    static constexpr auto name = Name::name;
    static FunctionPtr create(const Context &context)
    {
        return std::make_shared<FunctionDictGetImpl>(context);
    }
    explicit FunctionDictGetImpl(const Context & context_) : impl(context_) {}
    String getName() const override { return name; }
private:
    size_t getNumberOfArguments() const override { return 0; }
    bool isVariadic() const override { return true; }
    bool useDefaultImplementationForConstants() const final { return true; }
    bool isDeterministic() const override { return false; }
    ColumnNumbers getArgumentsThatAreAlwaysConstant() const final { return {0, 1}; }
    bool isInjective(const ColumnsWithTypeAndName & sample_columns) const override
    {
        return impl.isInjective(sample_columns);
    }
    DataTypePtr getReturnTypeImpl(const DataTypes &) const override
    {
        DataTypePtr result;
        if constexpr (IsDataTypeDecimal<DataType>)
            result = std::make_shared<DataType>(DataType::maxPrecision(), 0);
        else
            result = std::make_shared<DataType>();
        return result;
    }
    ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr & result_type, size_t input_rows_count) const override