From dda6714d98b95cb9e5a30f62380ebdb58be3f3ff Mon Sep 17 00:00:00 2001
From: chao <48119764+withchao@users.noreply.github.com>
Date: Sat, 6 Jun 2026 09:17:18 +0800
Subject: [PATCH] refactor(msg): update regex pattern for conversationID to
 include a trailing colon (#3736)

(cherry picked from commit 82f87551d6067983f4e31f8dacb905c740d58639)
---
 pkg/common/storage/database/mgo/msg.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkg/common/storage/database/mgo/msg.go b/pkg/common/storage/database/mgo/msg.go
index f0665b03d..c70718f73 100644
--- a/pkg/common/storage/database/mgo/msg.go
+++ b/pkg/common/storage/database/mgo/msg.go
@@ -951,7 +951,7 @@ func (m *MsgMgo) GetLastMessageSeqByTime(ctx context.Context, conversationID str
 		{
 			"$match": bson.M{
 				"doc_id": bson.M{
-					"$regex": fmt.Sprintf("^%s", conversationID),
+					"$regex": fmt.Sprintf("^%s:", conversationID),
 				},
 			},
 		},
@@ -1003,7 +1003,7 @@ func (m *MsgMgo) GetLastMessage(ctx context.Context, conversationID string) (*mo
 		{
 			"$match": bson.M{
 				"doc_id": bson.M{
-					"$regex": fmt.Sprintf("^%s", conversationID),
+					"$regex": fmt.Sprintf("^%s:", conversationID),
 				},
 			},
 		},