diff --git a/dap_chain_global_db.h b/dap_chain_global_db.h
index c8d8feb6ea2b0d6e27557eb28ea4d28b551299d9..0bc7ae0e7705e777578e6e27cb454427ae561848 100755
--- a/dap_chain_global_db.h
+++ b/dap_chain_global_db.h
@@ -103,9 +103,9 @@ char* dap_chain_global_db_hash_fast(const uint8_t *data, size_t data_size);
 uint8_t* dap_db_log_pack(dap_global_db_obj_t *a_obj, size_t *a_data_size_out);
 
 // Get data according the history log
-char* dap_db_history_tx(dap_chain_hash_fast_t * a_tx_hash, const char *a_group_mempool);
-char* dap_db_history_addr(dap_chain_addr_t * a_addr, const char *a_group_mempool);
-char* dap_db_history_filter(dap_chain_addr_t * a_addr, const char *a_group_mempool);
+//char* dap_db_history_tx(dap_chain_hash_fast_t * a_tx_hash, const char *a_group_mempool);
+//char* dap_db_history_addr(dap_chain_addr_t * a_addr, const char *a_group_mempool);
+//char* dap_db_history_filter(dap_chain_addr_t * a_addr, const char *a_group_mempool);
 
 // Parse data from dap_db_log_pack()
 void* dap_db_log_unpack(const void *a_data, size_t a_data_size, size_t *a_store_obj_count);
diff --git a/dap_chain_global_db_hist.c b/dap_chain_global_db_hist.c
index 1455cd59bf5db1d3d7dbc26719b92e76a61e96ef..b1ca5b4a9dfa643d265bd1ad30a71c065bf08fca 100755
--- a/dap_chain_global_db_hist.c
+++ b/dap_chain_global_db_hist.c
@@ -155,6 +155,7 @@ static dap_store_obj_t* get_prev_tx(dap_global_db_obj_t *a_objs, dap_tx_data_t *
  *
  * return history string
  */
+#if 0
 char* dap_db_history_tx(dap_chain_hash_fast_t* a_tx_hash, const char *a_group_mempool)
 {
     dap_string_t *l_str_out = dap_string_new(NULL);
@@ -368,12 +369,14 @@ char* dap_db_history_tx(dap_chain_hash_fast_t* a_tx_hash, const char *a_group_me
     char *l_ret_str = l_str_out ? dap_string_free(l_str_out, false) : NULL;
     return l_ret_str;
 }
+#endif
 
 /**
  * Get data according the history log
  *
  * return history string
  */
+#if 0
 char* dap_db_history_addr(dap_chain_addr_t * a_addr, const char *a_group_mempool)
 {
     dap_string_t *l_str_out = dap_string_new(NULL);
@@ -707,6 +710,7 @@ char* dap_db_history_addr(dap_chain_addr_t * a_addr, const char *a_group_mempool
     char *l_ret_str = l_str_out ? dap_string_free(l_str_out, false) : NULL;
     return l_ret_str;
 }
+#endif
 
 
 /**