MINOR: Fix lineage PATCH API (#17264)

ingestion/src/metadata/ingestion/ometa/mixins/lineage_mixin.py

@@ -52,11 +52,12 @@ class OMetaLineageMixin(Generic[T]):
     def _merge_column_lineage(
         self, original: List[Dict[str, Any]], updated: List[Dict[str, Any]]
     ):
-        temp_result = []
+        flat_original_result = set()
+        flat_updated_result = set()
         try:
             for column in original or []:
                 if column.get("toColumn") and column.get("fromColumns"):
-                    temp_result.append(
+                    flat_original_result.add(
                         (*column.get("fromColumns", []), column.get("toColumn"))
                     )
             for column in updated or []:
@@ -65,15 +66,18 @@ class OMetaLineageMixin(Generic[T]):
                 else:
                     data = column
                 if data.get("toColumn") and data.get("fromColumns"):
-                    temp_result.append(
+                    flat_updated_result.add(
                         (*data.get("fromColumns", []), data.get("toColumn"))
                     )
         except Exception as exc:
             logger.debug(f"Error while merging column lineage: {exc}")
             logger.debug(traceback.format_exc())
+        union_result = flat_original_result.union(flat_updated_result)
+        if flat_original_result == union_result:
+            return original
         return [
             {"fromColumns": list(col_data[:-1]), "toColumn": col_data[-1]}
-            for col_data in set(temp_result)
+            for col_data in union_result
         ]
 
     def _update_cache(self, request: AddLineageRequest, response: Dict[str, Any]):
@@ -119,7 +123,10 @@ class OMetaLineageMixin(Generic[T]):
                         "columnsLineage", []
                     )
                     original.edge.lineageDetails.pipeline = (
-                        EntityReference(**edge["edge"].get("pipeline"))
+                        EntityReference(
+                            id=edge["edge"]["pipeline"]["id"],
+                            type=edge["edge"]["pipeline"]["type"],
+                        )
                         if edge["edge"].get("pipeline")
                         else None
                     )
@@ -141,7 +148,7 @@ class OMetaLineageMixin(Generic[T]):
                             original.edge.lineageDetails.pipeline
                         )
                     patch = self.patch_lineage_edge(original=original, updated=data)
-                    if patch is not None:
+                    if patch:
                         patch_op_success = True
 
             if patch_op_success is False:
@@ -203,7 +210,7 @@ class OMetaLineageMixin(Generic[T]):
         self,
         original: AddLineageRequest,
         updated: AddLineageRequest,
-    ) -> Optional[str]:
+    ) -> Optional[bool]:
         """
         Patches a lineage edge between two entities.
 
@@ -229,14 +236,14 @@ class OMetaLineageMixin(Generic[T]):
                     f"/{original.edge.toEntity.id.root}",
                     data=str(patch),
                 )
-                return str(patch)
+            return True
         except APIError as err:
             logger.debug(traceback.format_exc())
             logger.warning(
                 f"Error Patching Lineage Edge {err.status_code} "
                 f"for {original.edge.fromEntity.fullyQualifiedName}"
             )
-        return None
+        return False
 
     def get_lineage_by_id(
         self,

openmetadata-service/src/main/java/org/openmetadata/service/jdbi3/LineageRepository.java

@@ -204,6 +204,7 @@ public class LineageRepository {
       } else {
         pipelineMap = JsonUtils.getMap(Entity.getEntity(pipelineRef, "tags,owners", Include.ALL));
       }
+      pipelineMap.remove("changeDescription");
       relationshipDetails.put("pipelineEntityType", pipelineRef.getType());
       relationshipDetails.put(PIPELINE, pipelineMap);
     }