void mysql_free_result(MYSQL_RES *result)
20.4.22.1  Description
Frees the memory allocated for a result set by mysql_store_result(),
mysql_use_result(), mysql_list_dbs(), etc.  When you are done
with a result set, you must free the memory it uses by calling
mysql_free_result().
20.4.22.2  Return values
None.
20.4.22.3  Errors
None.