diff options
Diffstat (limited to 'storage/innobase/include/dict0mem.h')
| -rw-r--r-- | storage/innobase/include/dict0mem.h | 38 |
1 files changed, 11 insertions, 27 deletions
diff --git a/storage/innobase/include/dict0mem.h b/storage/innobase/include/dict0mem.h index 68eb417e531..1ad2517c8fb 100644 --- a/storage/innobase/include/dict0mem.h +++ b/storage/innobase/include/dict0mem.h @@ -298,19 +298,17 @@ parent table will fail, and user has to drop excessive foreign constraint before proceeds. */ #define FK_MAX_CASCADE_DEL 15 -/** Creates a table memory object. -@param[in] name table name -@param[in] space tablespace -@param[in] n_cols total number of columns including virtual and - non-virtual columns -@param[in] n_v_cols number of virtual columns -@param[in] flags table flags -@param[in] flags2 table flags2 -@param[in] init_stats_latch whether to init the stats latch +/** Create a table memory object. +@param name table name +@param space tablespace +@param n_cols total number of columns (both virtual and non-virtual) +@param n_v_cols number of virtual columns +@param flags table flags +@param flags2 table flags2 @return own: table object */ dict_table_t *dict_mem_table_create(const char *name, fil_space_t *space, ulint n_cols, ulint n_v_cols, ulint flags, - ulint flags2, bool init_stats_latch= true); + ulint flags2); /****************************************************************/ /** Free a table memory object. */ void @@ -1118,7 +1116,7 @@ public: when InnoDB was started up */ zip_pad_info_t zip_pad;/*!< Information about state of compression failures and successes */ - rw_lock_t lock; /*!< read-write lock protecting the + mutable rw_lock_t lock; /*!< read-write lock protecting the upper levels of the index tree */ /** Determine if the index has been committed to the @@ -2137,22 +2135,8 @@ public: /*!< set of foreign key constraints which refer to this table */ dict_foreign_set referenced_set; - /** Statistics for query optimization. @{ */ - - /** This latch protects: - dict_table_t::stat_initialized, - dict_table_t::stat_n_rows (*), - dict_table_t::stat_clustered_index_size, - dict_table_t::stat_sum_of_other_index_sizes, - dict_table_t::stat_modified_counter (*), - dict_table_t::indexes*::stat_n_diff_key_vals[], - dict_table_t::indexes*::stat_index_size, - dict_table_t::indexes*::stat_n_leaf_pages. - (*) Those are not always protected for - performance reasons. */ - rw_lock_t stats_latch; - - bool stats_latch_inited= false; + /** Statistics for query optimization. Mostly protected by + dict_sys.mutex. @{ */ /** TRUE if statistics have been calculated the first time after database startup or table creation. */ |