diff options
Diffstat (limited to 'sql/sql_class.cc')
| -rw-r--r-- | sql/sql_class.cc | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/sql/sql_class.cc b/sql/sql_class.cc index 9a1c35c7d3d..8a0d84c6735 100644 --- a/sql/sql_class.cc +++ b/sql/sql_class.cc @@ -186,7 +186,9 @@ THD::THD() /* statement id */ 0), Open_tables_state(refresh_version), lock_id(&main_lock_id), - user_time(0), in_sub_stmt(0), global_read_lock(0), is_fatal_error(0), + user_time(0), in_sub_stmt(0), + table_map_for_update(0), + global_read_lock(0), is_fatal_error(0), transaction_rollback_request(0), is_fatal_sub_stmt_error(0), rand_used(0), time_zone_used(0), last_insert_id_used(0), last_insert_id_used_bin_log(0), insert_id_used(0), @@ -231,6 +233,7 @@ THD::THD() one_shot_set= 0; file_id = 0; query_id= 0; + query_name_consts= 0; warn_id= 0; db_charset= global_system_variables.collation_database; bzero(ha_data, sizeof(ha_data)); @@ -358,6 +361,12 @@ void THD::init(void) if (variables.sql_mode & MODE_NO_BACKSLASH_ESCAPES) server_status|= SERVER_STATUS_NO_BACKSLASH_ESCAPES; options= thd_startup_options; + + if (variables.max_join_size == HA_POS_ERROR) + options |= OPTION_BIG_SELECTS; + else + options &= ~OPTION_BIG_SELECTS; + transaction.all.modified_non_trans_table= transaction.stmt.modified_non_trans_table= FALSE; open_options=ha_open_options; update_lock_default= (variables.low_priority_updates ? @@ -408,6 +417,10 @@ void THD::init_for_queries() void THD::change_user(void) { + pthread_mutex_lock(&LOCK_status); + add_to_status(&global_status_var, &status_var); + pthread_mutex_unlock(&LOCK_status); + cleanup(); cleanup_done= 0; init(); @@ -664,6 +677,8 @@ void THD::cleanup_after_query() free_items(); /* Reset where. */ where= THD::DEFAULT_WHERE; + /* reset table map for multi-table update */ + table_map_for_update= 0; } @@ -1060,6 +1075,11 @@ bool select_send::send_data(List<Item> &items) my_message(ER_OUT_OF_RESOURCES, ER(ER_OUT_OF_RESOURCES), MYF(0)); break; } + /* + Reset buffer to its original state, as it may have been altered in + Item::send(). + */ + buffer.set(buff, sizeof(buff), &my_charset_bin); } thd->sent_row_count++; if (!thd->vio_ok()) @@ -1756,7 +1776,7 @@ void Query_arena::set_query_arena(Query_arena *set) void Query_arena::cleanup_stmt() { - DBUG_ASSERT("Query_arena::cleanup_stmt()" == "not implemented"); + DBUG_ASSERT(! "Query_arena::cleanup_stmt() not implemented"); } /* @@ -2142,6 +2162,13 @@ void Security_context::skip_grants() } +bool Security_context::user_matches(Security_context *them) +{ + return ((user != NULL) && (them->user != NULL) && + !strcmp(user, them->user)); +} + + /**************************************************************************** Handling of open and locked tables states. |