diff --git a/include/client/taos.h b/include/client/taos.h
index 6d3bf39c03..0260316618 100644
--- a/include/client/taos.h
+++ b/include/client/taos.h
@@ -29,8 +29,8 @@ typedef void   TAOS_RES;
 typedef void **TAOS_ROW;
 #if 0
 typedef void   TAOS_STREAM;
-typedef void   TAOS_SUB;
 #endif
+typedef void   TAOS_SUB;
 
 // Data type definition
 #define TSDB_DATA_TYPE_NULL       0   // 1 bytes
@@ -182,13 +182,16 @@ DLL_EXPORT int         taos_errno(TAOS_RES *tres);
 DLL_EXPORT void taos_query_a(TAOS *taos, const char *sql, __taos_async_fn_t fp, void *param);
 DLL_EXPORT void taos_fetch_rows_a(TAOS_RES *res, __taos_async_fn_t fp, void *param);
 
-#if 0
+// Shuduo: temporary enable for app build
+#if 1
 typedef void (*__taos_sub_fn_t)(TAOS_SUB *tsub, TAOS_RES *res, void *param, int code);
 DLL_EXPORT TAOS_SUB *taos_subscribe(TAOS *taos, int restart, const char *topic, const char *sql, __taos_sub_fn_t fp,
                                     void *param, int interval);
 DLL_EXPORT TAOS_RES *taos_consume(TAOS_SUB *tsub);
 DLL_EXPORT void      taos_unsubscribe(TAOS_SUB *tsub, int keepProgress);
+#endif
 
+#if 0
 DLL_EXPORT TAOS_STREAM *taos_open_stream(TAOS *taos, const char *sql, void (*fp)(void *param, TAOS_RES *, TAOS_ROW row),
                                          int64_t stime, void *param, void (*callback)(void *));
 DLL_EXPORT void         taos_close_stream(TAOS_STREAM *tstr);
@@ -281,7 +284,7 @@ DLL_EXPORT TAOS_RES *tmq_create_topic(TAOS *taos, const char *name, const char *
 DLL_EXPORT TAOS_RES *tmq_create_stream(TAOS *taos, const char *streamName, const char *tbName, const char *sql);
 
 /* ------------------------------ TMQ END -------------------------------- */
-#if 0
+#if 1 // Shuduo: temporary enable for app build
 typedef void (*TAOS_SUBSCRIBE_CALLBACK)(TAOS_SUB *tsub, TAOS_RES *res, void *param, int code);
 #endif
 
diff --git a/source/client/src/clientMain.c b/source/client/src/clientMain.c
index 3f82cacd66..b1ada016e8 100644
--- a/source/client/src/clientMain.c
+++ b/source/client/src/clientMain.c
@@ -392,7 +392,7 @@ void taos_query_a(TAOS *taos, const char *sql, __taos_async_fn_t fp, void *param
 void taos_fetch_rows_a(TAOS_RES *res, __taos_async_fn_t fp, void *param) {
   // TODO
 }
-#if 0
+
 TAOS_SUB *taos_subscribe(TAOS *taos, int restart, const char* topic, const char *sql, TAOS_SUBSCRIBE_CALLBACK fp, void *param, int interval) {
     // TODO
     return NULL;
@@ -406,7 +406,6 @@ TAOS_RES *taos_consume(TAOS_SUB *tsub) {
 void taos_unsubscribe(TAOS_SUB *tsub, int keepProgress) {
     // TODO
 }
-#endif
 
 TAOS_STMT *taos_stmt_init(TAOS *taos) {
   // TODO
@@ -458,12 +457,27 @@ int taos_stmt_set_tbname(TAOS_STMT *stmt, const char *name) {
   return -1;
 }
 
-int taos_stmt_add_batch(TAOS_STMT *stmt) {
-  // TODO
-  return -1;
+int taos_stmt_is_insert(TAOS_STMT *stmt, int *insert) {
+    // TODO
+    return -1;
 }
 
-int taos_stmt_bind_param_batch(TAOS_STMT *stmt, TAOS_MULTI_BIND *bind) {
-  // TODO
-  return -1;
+int taos_stmt_num_params(TAOS_STMT *stmt, int *nums) {
+    // TODO
+    return -1;
+}
+
+int taos_stmt_add_batch(TAOS_STMT* stmt) {
+    // TODO
+    return -1;
+}
+
+TAOS_RES *taos_stmt_use_result(TAOS_STMT *stmt) {
+    // TODO
+    return NULL;
+}
+
+int taos_stmt_bind_param_batch(TAOS_STMT* stmt, TAOS_MULTI_BIND* bind) {
+    // TODO
+    return -1;
 }