@@ -83,7 +83,7 @@ def __init__(  # noqa: C901
             ]
         ],
         udf: FunctionType,
-        udf_string: str,
+        udf_string: str = "",
         description: str = "",
         tags: Optional[Dict[str, str]] = None,
         owner: str = "",
@@ -140,6 +140,7 @@ def __copy__(self):
             sources=list(self.source_feature_view_projections.values())
             + list(self.source_request_sources.values()),
             udf=self.udf,
+            udf_string=self.udf_string,
             description=self.description,
             tags=self.tags,
             owner=self.owner,
 
@@ -69,6 +69,7 @@ def conv_rate_plus_100_feature_view(
         schema=[] if infer_features else _features,
         sources=sources,
         udf=conv_rate_plus_100,
+        udf_string="raw udf source",
     )
 
 
@@ -106,6 +107,7 @@ def similarity_feature_view(
         sources=sources,
         schema=[] if infer_features else _fields,
         udf=similarity,
+        udf_string="similarity raw udf",
     )
Original file line number	Diff line number	Diff line change
`@@ -69,6 +69,7 @@ def conv_rate_plus_100_feature_view(`
`69`	`69`	`schema=[] if infer_features else _features,`
`70`	`70`	`sources=sources,`
`71`	`71`	`udf=conv_rate_plus_100,`
	`72`	`+ udf_string="raw udf source",`
`72`	`73`	`)`
`73`	`74`
`74`	`75`
`@@ -106,6 +107,7 @@ def similarity_feature_view(`
`106`	`107`	`sources=sources,`
`107`	`108`	`schema=[] if infer_features else _fields,`
`108`	`109`	`udf=similarity,`
	`110`	`+ udf_string="similarity raw udf",`
`109`	`111`	`)`
`110`	`112`
`111`	`113`