fix

src/kit/taosdemo/src/demoJsonOpt.c

@@ -854,6 +854,7 @@ int getMetaFromInsertJsonFile(cJSON *root) {
                     g_Dbs.db[i].superTbls[j].iface = STMT_IFACE;
                 } else if (0 == strcasecmp(stbIface->valuestring, "sml")) {
                     g_Dbs.db[i].superTbls[j].iface = SML_IFACE;
+                    g_args.iface = SML_IFACE;
                 } else {
                     errorPrint(
                         "failed to read json, insert_mode %s not recognized\n",