diff --git a/src/gausskernel/optimizer/sqladvisor/sqladvisor_online.cpp b/src/gausskernel/optimizer/sqladvisor/sqladvisor_online.cpp
index 5561563a4..80a2c764d 100644
--- a/src/gausskernel/optimizer/sqladvisor/sqladvisor_online.cpp
+++ b/src/gausskernel/optimizer/sqladvisor/sqladvisor_online.cpp
@@ -320,7 +320,7 @@ static bool equalPLpgsqlFunc(PLpgSQL_function* funcA, PLpgSQL_function* funcB)
         /* equalPLpgEstate(funcA->cur_estate, funcB->cur_estate) */
         for (int i = 0; i < funcA->fn_nargs; i++) {
             if (funcA->fn_argvarnos[i] != funcB->fn_argvarnos[i]) {
-                break;
+                return false;
             }
         }
         return true;