add postgres column type check

add specific method to handle named parameters

data/data.go

@@ -16,30 +16,47 @@ type Data struct {
 	IsVirtual    bool
 	IsPrimaryKey bool
 	IsUpdated    bool
-	IsInteger    bool
+
+	IsInteger bool
+	IsBoolean bool
+	IsString  bool
+	IsNull    bool
 }
 
 func (d *Data) FromByte(v []byte) *Data {
 	d.Value = string(v)
-	d.IsInteger = false
 
 	return d
 }
 
 func (d *Data) FromInt64(v int64) *Data {
 	d.Value = strconv.FormatInt(v, 10)
-	d.IsInteger = true
 
 	return d
 }
 
 func (d *Data) FromString(v string) *Data {
 	d.Value = v
-	d.IsInteger = false
 
 	return d
 }
 
+func (d *Data) FinalValue() string {
+	if d.IsNull {
+		return "null"
+	}
+
+	if d.IsBoolean {
+		if d.Value == "1" {
+			return "true"
+		} else {
+			return "false"
+		}
+	}
+
+	return d.Value
+}
+
 func (d *Data) IsTwigExpression() bool {
 	return strings.Contains(d.Faker, "{{") || strings.Contains(d.Faker, "}}")
 }