Revert "If a primitive column is nullable, handle correctly"

This reverts commit 87b89ef.

Author: Piszmog

examples/src/main/resources/ondeck/postgresql/query/checking_account.sql

@@ -104,11 +104,7 @@ func jdbcSet(t ktType, idx int, name string) string {
 	if t.IsUUID() {
 		return fmt.Sprintf("stmt.setObject(%d, %s)", idx, name)
 	}
-	if t.IsNull && t.PrimitiveType != "" {
-		return fmt.Sprintf("if (%[3]s != null) stmt.set%[1]s(%[2]d, %[3]s) else stmt.setNull(%[2]d, Types.%[4]s)", t.Name, idx, name, t.PrimitiveType)
-	} else {
-		return fmt.Sprintf("stmt.set%s(%d, %s)", t.Name, idx, name)
-	}
+	return fmt.Sprintf("stmt.set%s(%d, %s)", t.Name, idx, name)
 }
 
 type Params struct {
@@ -336,13 +332,12 @@ func BuildDataClasses(conf Config, req *plugin.GenerateRequest) []Struct {
 }
 
 type ktType struct {
-	Name          string
-	IsEnum        bool
-	IsArray       bool
-	IsNull        bool
-	PrimitiveType string
-	DataType      string
-	Engine        string
+	Name     string
+	IsEnum   bool
+	IsArray  bool
+	IsNull   bool
+	DataType string
+	Engine   string
 }
 
 func (t ktType) String() string {
@@ -391,13 +386,12 @@ func (t ktType) IsBigDecimal() bool {
 func makeType(req *plugin.GenerateRequest, col *plugin.Column) ktType {
 	typ, isEnum := ktInnerType(req, col)
 	return ktType{
-		Name:          typ,
-		IsEnum:        isEnum,
-		IsArray:       col.IsArray,
-		IsNull:        !col.NotNull,
-		PrimitiveType: ktPrimitiveType(typ),
-		DataType:      sdk.DataType(col.Type),
-		Engine:        req.Settings.Engine,
+		Name:     typ,
+		IsEnum:   isEnum,
+		IsArray:  col.IsArray,
+		IsNull:   !col.NotNull,
+		DataType: sdk.DataType(col.Type),
+		Engine:   req.Settings.Engine,
 	}
 }
 
@@ -413,25 +407,6 @@ func ktInnerType(req *plugin.GenerateRequest, col *plugin.Column) (string, bool)
 	}
 }
 
-func ktPrimitiveType(t string) string {
-	switch t {
-	case "Int":
-		return "INTEGER"
-	case "Double":
-		return "DOUBLE"
-	case "Long":
-		return "BIGINT"
-	case "Short":
-		return "SMALLINT"
-	case "Float":
-		return "REAL"
-	case "Boolean":
-		return "BOOLEAN"
-	default:
-		return ""
-	}
-}
-
 type goColumn struct {
 	id int
 	*plugin.Column