anchor.diff:          | TypeWrapper.None -> typeof<Operations>?GetOptionalValue (runtimeTyp) value
           | TypeWrapper.Option -> value
           | TypeWrapper.Nullable -> typeof<Operations>?NullableToOption (runtimeTyp) value
  -      if typ = typeof<int> || typ = typeof<Bit0> || typ = typeof<Bit1> then <@@ Operations.ConvertIntegerBack(culture, %%value) @@>
  -      elif typ = typeof<int64> then <@@ Operations.ConvertInteger64Back(culture, %%value) @@>
  -      elif typ = typeof<decimal> then <@@ Operations.ConvertDecimalBack(culture, %%value) @@>
  -      elif typ = typeof<float> then <@@ Operations.ConvertFloatBack(culture, missingValues, %%value) @@>
  -      elif typ = typeof<string> then <@@ Operations.ConvertStringBack(%%value) @@>
  -      elif typ = typeof<bool> then <@@ Operations.ConvertBooleanBack(culture, %%value, false) @@>
  -      elif typ = typeof<Bit> then <@@ Operations.ConvertBooleanBack(culture, %%value, true) @@>
  -      elif typ = typeof<Guid> then <@@ Operations.ConvertGuidBack(%%value) @@>
  -      elif typ = typeof<DateTime> then <@@ Operations.ConvertDateTimeBack(culture, %%value) @@>
  -      else failwith "convertValue: Unsupported primitive type"
  -      |> replacer.ToRuntime
  +      getBackConversionQuotation config typ value |> replacer.ToRuntime
   
       returnTyp, returnTypWithoutMeasure, convert, convertBack
   
  
positive.code:   open FSharp.Data.RuntimeImplementation
    open QuotationBuilder
  
    /// Creates a function that takes Expr<string option> and converts it to 
    /// an expression of other type - the type is specified by `field`
    let convertValue (replacer:AssemblyReplacer) (missingValues, culture) (field:PrimitiveInferedProperty) = 
  
      let returnTyp = 
        match field.TypeWrapper with
  
negative.code:     let runtimeTyp = field.RuntimeType
  
      let convert value =
        let converted = getConversionQuotation config typ value
        match field.TypeWrapper with
        | TypeWrapper.None -> typeof<Operations>?GetNonOptionalValue (runtimeTyp) (field.Name, converted, value)
        | TypeWrapper.Option -> converted
  