From e87620fd794e460bf6a908c2118fe4f4e4d82f97 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=BB=91=E5=B8=83=E6=9E=97?=
 <11641432+heiheiyouyou@user.noreply.gitee.com>
Date: Tue, 24 Feb 2026 21:57:38 +0800
Subject: [PATCH 1/2] skip edge

---
 src/memos/graph_dbs/polardb.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/memos/graph_dbs/polardb.py b/src/memos/graph_dbs/polardb.py
index f0a23e39b..848064400 100644
--- a/src/memos/graph_dbs/polardb.py
+++ b/src/memos/graph_dbs/polardb.py
@@ -851,7 +851,8 @@ def add_edge(
             logger.warning(
                 "[add_edge] Source %s or target %s does not exist.", source_exists, target_exists
             )
-            raise ValueError("[add_edge] source_id and target_id must be provided")
+            logger.warning("[add_edge] source_id and target_id must be existed, skip add edge")
+            return
 
         properties = {}
         if user_name is not None:

From 8a1b5667dc26ef49e6de87efa261c70a25e8cb8c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=BB=91=E5=B8=83=E6=9E=97?=
 <11641432+heiheiyouyou@user.noreply.gitee.com>
Date: Tue, 24 Feb 2026 22:12:42 +0800
Subject: [PATCH 2/2] skip edges

---
 src/memos/graph_dbs/polardb.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/memos/graph_dbs/polardb.py b/src/memos/graph_dbs/polardb.py
index 848064400..d9e9988bc 100644
--- a/src/memos/graph_dbs/polardb.py
+++ b/src/memos/graph_dbs/polardb.py
@@ -841,7 +841,7 @@ def add_edge(
 
         start_time = time.time()
         if not source_id or not target_id:
-            logger.warning(f"Edge '{source_id}' and '{target_id}' are both None")
+            logger.info(f"Edge '{source_id}' and '{target_id}' are both None")
             raise ValueError("[add_edge] source_id and target_id must be provided")
 
         source_exists = self.get_node(source_id) is not None
@@ -851,7 +851,11 @@ def add_edge(
             logger.warning(
                 "[add_edge] Source %s or target %s does not exist.", source_exists, target_exists
             )
-            logger.warning("[add_edge] source_id and target_id must be existed, skip add edge")
+            logger.info(
+                "[add_edge_error] Source %s or target %s does not exist.",
+                source_exists,
+                target_exists,
+            )
             return
 
         properties = {}