diff options
Diffstat (limited to 'storage/xtradb/include/row0mysql.h')
| -rw-r--r-- | storage/xtradb/include/row0mysql.h | 72 |
1 files changed, 35 insertions, 37 deletions
diff --git a/storage/xtradb/include/row0mysql.h b/storage/xtradb/include/row0mysql.h index d2a8734c61f..a604f6e3724 100644 --- a/storage/xtradb/include/row0mysql.h +++ b/storage/xtradb/include/row0mysql.h @@ -253,15 +253,6 @@ row_table_got_default_clust_index( /*==============================*/ const dict_table_t* table); /*!< in: table */ /*********************************************************************//** -Calculates the key number used inside MySQL for an Innobase index. We have -to take into account if we generated a default clustered index for the table -@return the key number used inside MySQL */ -UNIV_INTERN -ulint -row_get_mysql_key_number_for_index( -/*===============================*/ - const dict_index_t* index); /*!< in: index */ -/*********************************************************************//** Does an update or delete of a row for MySQL. @return error code or DB_SUCCESS */ UNIV_INTERN @@ -273,27 +264,26 @@ row_update_for_mysql( row_prebuilt_t* prebuilt); /*!< in: prebuilt struct in MySQL handle */ /*********************************************************************//** -This can only be used when srv_locks_unsafe_for_binlog is TRUE or -session is using a READ COMMITTED isolation level. Before -calling this function we must use trx_reset_new_rec_lock_info() and -trx_register_new_rec_lock() to store the information which new record locks -really were set. This function removes a newly set lock under prebuilt->pcur, -and also under prebuilt->clust_pcur. Currently, this is only used and tested -in the case of an UPDATE or a DELETE statement, where the row lock is of the -LOCK_X type. -Thus, this implements a 'mini-rollback' that releases the latest record -locks we set. -@return error code or DB_SUCCESS */ +This can only be used when srv_locks_unsafe_for_binlog is TRUE or this +session is using a READ COMMITTED or READ UNCOMMITTED isolation level. +Before calling this function row_search_for_mysql() must have +initialized prebuilt->new_rec_locks to store the information which new +record locks really were set. This function removes a newly set +clustered index record lock under prebuilt->pcur or +prebuilt->clust_pcur. Thus, this implements a 'mini-rollback' that +releases the latest clustered index record lock we set. +@return error code or DB_SUCCESS */ UNIV_INTERN int row_unlock_for_mysql( /*=================*/ - row_prebuilt_t* prebuilt, /*!< in: prebuilt struct in MySQL + row_prebuilt_t* prebuilt, /*!< in/out: prebuilt struct in MySQL handle */ - ibool has_latches_on_recs);/*!< TRUE if called so that we have - the latches on the records under pcur - and clust_pcur, and we do not need to - reposition the cursors. */ + ibool has_latches_on_recs);/*!< in: TRUE if called + so that we have the latches on + the records under pcur and + clust_pcur, and we do not need + to reposition the cursors. */ /*********************************************************************//** Creates an query graph node of 'update' type to be used in the MySQL interface. @@ -386,6 +376,14 @@ row_create_index_for_mysql( then checked for not being too large. */ /*********************************************************************//** +*/ +UNIV_INTERN +int +row_insert_stats_for_mysql( +/*=======================*/ + dict_index_t* index, + trx_t* trx); +/*********************************************************************//** Scans a table create SQL string and adds to the data dictionary the foreign key constraints declared in the string. This function should be called after the indexes for a table have been created. @@ -403,6 +401,7 @@ row_table_add_foreign_constraints( FOREIGN KEY (a, b) REFERENCES table2(c, d), table2 can be written also with the database name before it: test.table2 */ + size_t sql_length, /*!< in: length of sql_string */ const char* name, /*!< in: table full name in the normalized form database_name/table_name */ @@ -710,18 +709,17 @@ struct row_prebuilt_struct { ulint new_rec_locks; /*!< normally 0; if srv_locks_unsafe_for_binlog is TRUE or session is using READ - COMMITTED isolation level, in a - cursor search, if we set a new - record lock on an index, this is - incremented; this is used in - releasing the locks under the - cursors if we are performing an - UPDATE and we determine after - retrieving the row that it does - not need to be locked; thus, - these can be used to implement a - 'mini-rollback' that releases - the latest record locks */ + COMMITTED or READ UNCOMMITTED + isolation level, set in + row_search_for_mysql() if we set a new + record lock on the secondary + or clustered index; this is + used in row_unlock_for_mysql() + when releasing the lock under + the cursor if we determine + after retrieving the row that + it does not need to be locked + ('mini-rollback') */ ulint mysql_prefix_len;/*!< byte offset of the end of the last requested column */ ulint mysql_row_len; /*!< length in bytes of a row in the |