diff options
Diffstat (limited to 'sql/handler.cc')
| -rw-r--r-- | sql/handler.cc | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/sql/handler.cc b/sql/handler.cc index 5968a78b587..718529fa5fc 100644 --- a/sql/handler.cc +++ b/sql/handler.cc @@ -2037,22 +2037,29 @@ int ha_delete_table(THD *thd, handlerton *table_type, const char *path, /**************************************************************************** ** General handler functions ****************************************************************************/ -handler *handler::clone(MEM_ROOT *mem_root) +handler *handler::clone(const char *name, MEM_ROOT *mem_root) { - handler *new_handler= get_new_handler(table->s, mem_root, table->s->db_type()); + handler *new_handler= get_new_handler(table->s, mem_root, ht); /* Allocate handler->ref here because otherwise ha_open will allocate it on this->table->mem_root and we will not be able to reclaim that memory when the clone handler object is destroyed. */ - if (!(new_handler->ref= (uchar*) alloc_root(mem_root, ALIGN_SIZE(ref_length)*2))) - return NULL; - if (new_handler && !new_handler->ha_open(table, - table->s->normalized_path.str, - table->db_stat, - HA_OPEN_IGNORE_IF_LOCKED)) - return new_handler; - return NULL; + if (new_handler && + !(new_handler->ref= (uchar*) alloc_root(mem_root, + ALIGN_SIZE(ref_length)*2))) + new_handler= NULL; + /* + TODO: Implement a more efficient way to have more than one index open for + the same table instance. The ha_open call is not cachable for clone. + */ + if (new_handler && new_handler->ha_open(table, + name, + table->db_stat, + HA_OPEN_IGNORE_IF_LOCKED)) + new_handler= NULL; + + return new_handler; } |