diff --git a/dbpool.go b/dbpool.go
index 3e30e4b..b9931b3 100644
--- a/dbpool.go
+++ b/dbpool.go
@@ -299,7 +299,9 @@ func (this *dbPool) UpsertEx(
 					}
 				}
 			} else {
-				this.Insert(dataSource, tblName, insertKv, cb)
+				if len(insertKv) > 0 {
+					this.Insert(dataSource, tblName, insertKv, cb)
+				}
 			}
 		})
 }