diff options
Diffstat (limited to 'storage/xtradb/include/dict0dict.h')
| -rw-r--r-- | storage/xtradb/include/dict0dict.h | 44 |
1 files changed, 21 insertions, 23 deletions
diff --git a/storage/xtradb/include/dict0dict.h b/storage/xtradb/include/dict0dict.h index d18b3ecb1b0..7baacdd6055 100644 --- a/storage/xtradb/include/dict0dict.h +++ b/storage/xtradb/include/dict0dict.h @@ -318,7 +318,8 @@ void dict_table_replace_index_in_foreign_list( /*=====================================*/ dict_table_t* table, /*!< in/out: table */ - dict_index_t* index); /*!< in: index to be replaced */ + dict_index_t* index, /*!< in: index to be replaced */ + const trx_t* trx); /*!< in: transaction handle */ /*********************************************************************//** Checks if a index is defined for a foreign key constraint. Index is a part of a foreign key constraint if the index is referenced by foreign key @@ -1053,20 +1054,13 @@ Calculates new estimates for table and index statistics. The statistics are used in query optimization. */ UNIV_INTERN void -dict_update_statistics_low( -/*=======================*/ - dict_table_t* table, /*!< in/out: table */ - ibool has_dict_mutex, /*!< in: TRUE if the caller has the - dictionary mutex */ - ibool sync); -/*********************************************************************//** -Calculates new estimates for table and index statistics. The statistics -are used in query optimization. */ -UNIV_INTERN -void dict_update_statistics( /*===================*/ - dict_table_t* table, /*!< in/out: table */ + dict_table_t* table, /*!< in/out: table */ + ibool only_calc_if_missing_stats, /*!< in: only + update/recalc the stats if they have + not been initialized yet, otherwise + do nothing */ ibool sync); /********************************************************************//** Reserves the dictionary system mutex for MySQL. */ @@ -1081,21 +1075,25 @@ void dict_mutex_exit_for_mysql(void); /*===========================*/ /**********************************************************************//** -Lock the appropriate mutex to protect index->stat_n_diff_key_vals[]. -index->id is used to pick the right mutex and it should not change -before dict_index_stat_mutex_exit() is called on this index. */ +Lock the appropriate latch to protect a given table's statistics. +table->id is used to pick the corresponding latch from a global array of +latches. */ UNIV_INTERN void -dict_index_stat_mutex_enter( -/*========================*/ - const dict_index_t* index); /*!< in: index */ +dict_table_stats_lock( +/*==================*/ + const dict_table_t* table, /*!< in: table */ + ulint latch_mode); /*!< in: RW_S_LATCH or + RW_X_LATCH */ /**********************************************************************//** -Unlock the appropriate mutex that protects index->stat_n_diff_key_vals[]. */ +Unlock the latch that has been locked by dict_table_stats_lock() */ UNIV_INTERN void -dict_index_stat_mutex_exit( -/*=======================*/ - const dict_index_t* index); /*!< in: index */ +dict_table_stats_unlock( +/*====================*/ + const dict_table_t* table, /*!< in: table */ + ulint latch_mode); /*!< in: RW_S_LATCH or + RW_X_LATCH */ /********************************************************************//** Checks if the database name in two table names is the same. @return TRUE if same db name */ |