mariadb/libservices/print_check_msg_service.c

/* Copyright (c) 2024, MariaDB Plc

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; version 2 of the License.

  This program is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
*/

#include <service_versions.h>
SERVICE_VERSION print_check_msg_context= (void*) VERSION_print_check_msg;
MDEV-33277 In-place upgrade causes invalid AUTO_INCREMENT values MDEV-33308 CHECK TABLE is modifying .frm file even if --read-only As noted in commit d0ef1aaf618452efea5a2e74f6d86ed0a586b63e, MySQL as well as older versions of MariaDB server would during ALTER TABLE ... IMPORT TABLESPACE write bogus values to the PAGE_MAX_TRX_ID field to pages of the clustered index, instead of letting that field remain 0. In commit 8777458a6eb73ac1d7d864ebac390ea7039e21c1 this field was repurposed for PAGE_ROOT_AUTO_INC in the clustered index root page. To avoid trouble when upgrading from MySQL or older versions of MariaDB, we will try to detect and correct bogus values of PAGE_ROOT_AUTO_INC when opening a table for the first time from the SQL layer. btr_read_autoinc_with_fallback(): Add the parameters to mysql_version,max to indicate the TABLE_SHARE::mysql_version of the .frm file and the maximum value allowed for the type of the AUTO_INCREMENT column. In case the table was originally created in MySQL or an older version of MariaDB, read also the maximum value of the AUTO_INCREMENT column from the table and reset the PAGE_ROOT_AUTO_INC if it is above the limit. dict_table_t::get_index(const dict_col_t &) const: Find an index that starts with the specified column. ha_innobase::check_for_upgrade(): Return HA_ADMIN_FAILED if InnoDB needs upgrading but is in read-only mode. In this way, the call to update_frm_version() will be skipped. row_import_autoinc(): Adjust the AUTO_INCREMENT column at the end of ALTER TABLE...IMPORT TABLESPACE. This refinement was suggested by Debarun Banerjee. The changes outside InnoDB were developed by Michael 'Monty' Widenius: Added print_check_msg() service for easy reporting of check/repair messages in ENGINE=Aria and ENGINE=InnoDB. Fixed that CHECK TABLE do not update the .frm file under --read-only. Added 'handler_flags' to HA_CHECK_OPT as a way for storage engines to store state from handler::check_for_upgrade(). Reviewed by: Debarun Banerjee 2024-02-08 09:35:45 +01:00			`/* Copyright (c) 2024, MariaDB Plc`

			`This program is free software; you can redistribute it and/or modify`
			`it under the terms of the GNU General Public License as published by`
			`the Free Software Foundation; version 2 of the License.`

			`This program is distributed in the hope that it will be useful, but`
			`WITHOUT ANY WARRANTY; without even the implied warranty of`
			`MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU`
			`General Public License for more details.`

			`You should have received a copy of the GNU General Public License`
			`along with this program; if not, write to the Free Software`
			`Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA`
			`*/`

			`#include <service_versions.h>`
			`SERVICE_VERSION print_check_msg_context= (void*) VERSION_print_check_msg;`