fixed last_updated_date column

app.py

@@ -105,7 +105,7 @@ def clustering_post(text):
 
         logging.info(msg=f"Start Update Similar Cluster DB")
 
-        session.query(Class_Table_Name).filter(Class_Table_Name.cluster_id == cluster_id).update({'centroid': new_similar_centroid, 'count': DB_CLUSTER_COUNT[ids]})
+        session.query(Class_Table_Name).filter(Class_Table_Name.cluster_id == cluster_id).update({'centroid': new_similar_centroid, 'count': DB_CLUSTER_COUNT[ids], 'last_update_date':datetime.now()})
         session.commit()
         DB_CENTROID_VECTORS[ids] = new_similar_centroid
 
@@ -175,4 +175,4 @@ def service(body, message):
                         yield output_document
 
 if __name__ == '__main__':
-    app.run()
\ No newline at end of file
+    app.run()