diff --git a/pkg/common/db/controller/msg.go b/pkg/common/db/controller/msg.go
index 4cb1f0580..2f991f9ea 100644
--- a/pkg/common/db/controller/msg.go
+++ b/pkg/common/db/controller/msg.go
@@ -475,6 +475,7 @@ func (db *commonMsgDatabase) GetMsgBySeqsRange(ctx context.Context, userID strin
 	if err != nil && errs.Unwrap(err) != redis.Nil {
 		return 0, 0, nil, err
 	}
+	log.ZDebug(ctx, "GetMsgBySeqsRange", "userMinSeq", userMinSeq, "conMinSeq", minSeq, "conMaxSeq", maxSeq, "userMaxSeq", userMaxSeq)
 	if userMaxSeq != 0 {
 		if userMaxSeq < maxSeq {
 			maxSeq = userMaxSeq