MDEV-22683: Ensure system tables are correctly upgraded in MariaDB 10.4

Running mysql_upgrade should end up with the exact same system tables as fresh
installations have after running mysql_install_db. To ensure the upgrade is
correct and complete:

- Remove the redundant modification of thread_id`. On 5.5 version, the
  `general_log` table was created as `CREATE TABLE IF NOT EXISTS general_log
  (..., thread_id INTEGER NOT NULL, ...)`, and starting from 10.0+, the table is
  created as `CREATE TABLE IF NOT EXISTS general_log (..., thread_id BIGINT(21)
  UNSIGNED NOT NULL, ...)`, but mysql_upgrade is not properly upgrading the
  table. It modifies the `thread_id` twice in one query, which could leave the
  table not modified and lead to other potential error when upgrading from
  MariaDB 5.5 or older.

- Update `servers` to ensure `Host` and `User` has correct data type if
  upgrading from 10.1 or older. On versions 10.0 and 10.1, the `servers` table
  was created as `CREATE TABLE IF NOT EXISTS servers (..., Host char(64) NOT
  NULL DEFAULT , ..., Owner char(64) NOT NULL DEFAULT , ...)`, and starting
  from 10.2, the table is created as `CREATE TABLE IF NOT EXISTS servers (...,
  Host varchar(2048) NOT NULL DEFAULT , ..., Owner varchar(512) NOT NULL
  DEFAULT , ...)`.

All new code of the whole pull request, including one or several files that
are either new files or modified ones, are contributed under the BSD-new license.
I am contributing on behalf of my employer Amazon Web Services, Inc.

5 files changed, 405 insertions, 5 deletions

diff --git a/mysql-test/main/system_mysql_db_fix50030.result b/mysql-test/main/system_mysql_db_fix50030.result
index f6edd821822..b02a50a8d3d 100644
--- a/mysql-test/main/system_mysql_db_fix50030.result
+++ b/mysql-test/main/system_mysql_db_fix50030.result
@@ -166,14 +166,14 @@ show create table servers;
 Table	Create Table
 servers	CREATE TABLE `servers` (
   `Server_name` char(64) NOT NULL DEFAULT '',
-  `Host` char(64) NOT NULL DEFAULT '',
+  `Host` varchar(2048) NOT NULL DEFAULT '',
   `Db` char(64) NOT NULL DEFAULT '',
   `Username` char(80) NOT NULL DEFAULT '',
   `Password` char(64) NOT NULL DEFAULT '',
   `Port` int(4) NOT NULL DEFAULT 0,
   `Socket` char(64) NOT NULL DEFAULT '',
   `Wrapper` char(64) NOT NULL DEFAULT '',
-  `Owner` char(64) NOT NULL DEFAULT '',
+  `Owner` varchar(512) NOT NULL DEFAULT '',
   PRIMARY KEY (`Server_name`)
 ) ENGINE=Aria DEFAULT CHARSET=utf8 COLLATE=utf8_general_ci PAGE_CHECKSUM=1 TRANSACTIONAL=1 COMMENT='MySQL Foreign Servers table'
 show create table proc;
diff --git a/mysql-test/main/system_mysql_db_fix50117.result b/mysql-test/main/system_mysql_db_fix50117.result
index 84861744a70..ca817b198c6 100644
--- a/mysql-test/main/system_mysql_db_fix50117.result
+++ b/mysql-test/main/system_mysql_db_fix50117.result
@@ -146,14 +146,14 @@ show create table servers;
 Table	Create Table
 servers	CREATE TABLE `servers` (
   `Server_name` char(64) NOT NULL DEFAULT '',
-  `Host` char(64) NOT NULL DEFAULT '',
+  `Host` varchar(2048) NOT NULL DEFAULT '',
   `Db` char(64) NOT NULL DEFAULT '',
   `Username` char(80) NOT NULL DEFAULT '',
   `Password` char(64) NOT NULL DEFAULT '',
   `Port` int(4) NOT NULL DEFAULT 0,
   `Socket` char(64) NOT NULL DEFAULT '',
   `Wrapper` char(64) NOT NULL DEFAULT '',
-  `Owner` char(64) NOT NULL DEFAULT '',
+  `Owner` varchar(512) NOT NULL DEFAULT '',
   PRIMARY KEY (`Server_name`)
 ) ENGINE=Aria DEFAULT CHARSET=utf8 COLLATE=utf8_general_ci PAGE_CHECKSUM=1 TRANSACTIONAL=1 COMMENT='MySQL Foreign Servers table'
 show create table proc;
diff --git a/mysql-test/main/system_mysql_db_fix50568.result b/mysql-test/main/system_mysql_db_fix50568.result
new file mode 100644
index 00000000000..898b11a6ce4
--- /dev/null
+++ b/mysql-test/main/system_mysql_db_fix50568.result
@@ -0,0 +1,297 @@
+use test;
+CREATE TABLE IF NOT EXISTS db (   Host char(60) binary DEFAULT '' NOT NULL, Db char(64) binary DEFAULT '' NOT NULL, User char(16) binary DEFAULT '' NOT NULL, Select_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Insert_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Update_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Delete_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Drop_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Grant_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, References_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Index_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Alter_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_tmp_table_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Lock_tables_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_view_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Show_view_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_routine_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Alter_routine_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Execute_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Event_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Trigger_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, PRIMARY KEY Host (Host,Db,User), KEY User (User) ) engine=MyISAM CHARACTER SET utf8 COLLATE utf8_bin comment='Database privileges';
+Warnings:
+Warning	1280	Name 'Host' ignored for PRIMARY key.
+CREATE TABLE IF NOT EXISTS host (  Host char(60) binary DEFAULT '' NOT NULL, Db char(64) binary DEFAULT '' NOT NULL, Select_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Insert_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Update_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Delete_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Drop_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Grant_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, References_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Index_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Alter_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_tmp_table_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Lock_tables_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_view_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Show_view_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_routine_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Alter_routine_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Execute_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Trigger_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, PRIMARY KEY Host (Host,Db) ) engine=MyISAM CHARACTER SET utf8 COLLATE utf8_bin comment='Host privileges;  Merged with database privileges';
+Warnings:
+Warning	1280	Name 'Host' ignored for PRIMARY key.
+CREATE TABLE IF NOT EXISTS user (   Host char(60) binary DEFAULT '' NOT NULL, User char(16) binary DEFAULT '' NOT NULL, Password char(41) character set latin1 collate latin1_bin DEFAULT '' NOT NULL, Select_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Insert_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Update_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Delete_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Drop_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Reload_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Shutdown_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Process_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, File_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Grant_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, References_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Index_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Alter_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Show_db_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Super_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_tmp_table_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Lock_tables_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Execute_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Repl_slave_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Repl_client_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_view_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Show_view_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_routine_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Alter_routine_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_user_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Event_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Trigger_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_tablespace_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, ssl_type enum('','ANY','X509', 'SPECIFIED') COLLATE utf8_general_ci DEFAULT '' NOT NULL, ssl_cipher BLOB NOT NULL, x509_issuer BLOB NOT NULL, x509_subject BLOB NOT NULL, max_questions int(11) unsigned DEFAULT 0  NOT NULL, max_updates int(11) unsigned DEFAULT 0  NOT NULL, max_connections int(11) unsigned DEFAULT 0  NOT NULL, max_user_connections int(11) DEFAULT 0  NOT NULL, plugin char(64) CHARACTER SET latin1 DEFAULT '' NOT NULL, authentication_string TEXT NOT NULL, PRIMARY KEY Host (Host,User) ) engine=MyISAM CHARACTER SET utf8 COLLATE utf8_bin comment='Users and global privileges';
+Warnings:
+Warning	1280	Name 'Host' ignored for PRIMARY key.
+CREATE TABLE IF NOT EXISTS func (  name char(64) binary DEFAULT '' NOT NULL, ret tinyint(1) DEFAULT '0' NOT NULL, dl char(128) DEFAULT '' NOT NULL, type enum ('function','aggregate') COLLATE utf8_general_ci NOT NULL, PRIMARY KEY (name) ) engine=MyISAM CHARACTER SET utf8 COLLATE utf8_bin   comment='User defined functions';
+CREATE TABLE IF NOT EXISTS plugin ( name varchar(64) DEFAULT '' NOT NULL, dl varchar(128) DEFAULT '' NOT NULL, PRIMARY KEY (name) ) engine=MyISAM CHARACTER SET utf8 COLLATE utf8_general_ci comment='MySQL plugins';
+CREATE TABLE IF NOT EXISTS servers ( Server_name char(64) NOT NULL DEFAULT '', Host char(64) NOT NULL DEFAULT '', Db char(64) NOT NULL DEFAULT '', Username char(64) NOT NULL DEFAULT '', Password char(64) NOT NULL DEFAULT '', Port INT(4) NOT NULL DEFAULT '0', Socket char(64) NOT NULL DEFAULT '', Wrapper char(64) NOT NULL DEFAULT '', Owner char(64) NOT NULL DEFAULT '', PRIMARY KEY (Server_name)) CHARACTER SET utf8 comment='MySQL Foreign Servers table';
+CREATE TABLE IF NOT EXISTS tables_priv ( Host char(60) binary DEFAULT '' NOT NULL, Db char(64) binary DEFAULT '' NOT NULL, User char(16) binary DEFAULT '' NOT NULL, Table_name char(64) binary DEFAULT '' NOT NULL, Grantor char(77) DEFAULT '' NOT NULL, Timestamp timestamp, Table_priv set('Select','Insert','Update','Delete','Create','Drop','Grant','References','Index','Alter','Create View','Show view','Trigger') COLLATE utf8_general_ci DEFAULT '' NOT NULL, Column_priv set('Select','Insert','Update','References') COLLATE utf8_general_ci DEFAULT '' NOT NULL, PRIMARY KEY (Host,Db,User,Table_name), KEY Grantor (Grantor) ) engine=MyISAM CHARACTER SET utf8 COLLATE utf8_bin   comment='Table privileges';
+CREATE TABLE IF NOT EXISTS columns_priv ( Host char(60) binary DEFAULT '' NOT NULL, Db char(64) binary DEFAULT '' NOT NULL, User char(16) binary DEFAULT '' NOT NULL, Table_name char(64) binary DEFAULT '' NOT NULL, Column_name char(64) binary DEFAULT '' NOT NULL, Timestamp timestamp, Column_priv set('Select','Insert','Update','References') COLLATE utf8_general_ci DEFAULT '' NOT NULL, PRIMARY KEY (Host,Db,User,Table_name,Column_name) ) engine=MyISAM CHARACTER SET utf8 COLLATE utf8_bin   comment='Column privileges';
+CREATE TABLE IF NOT EXISTS help_topic ( help_topic_id int unsigned not null, name char(64) not null, help_category_id smallint unsigned not null, description text not null, example text not null, url text not null, primary key (help_topic_id), unique index (name) ) engine=MyISAM CHARACTER SET utf8 comment='help topics';
+CREATE TABLE IF NOT EXISTS help_category ( help_category_id smallint unsigned not null, name  char(64) not null, parent_category_id smallint unsigned null, url text not null, primary key (help_category_id), unique index (name) ) engine=MyISAM CHARACTER SET utf8 comment='help categories';
+CREATE TABLE IF NOT EXISTS help_relation ( help_topic_id int unsigned not null references help_topic, help_keyword_id  int unsigned not null references help_keyword, primary key (help_keyword_id, help_topic_id) ) engine=MyISAM CHARACTER SET utf8 comment='keyword-topic relation';
+CREATE TABLE IF NOT EXISTS help_keyword (   help_keyword_id  int unsigned not null, name char(64) not null, primary key (help_keyword_id), unique index (name) ) engine=MyISAM CHARACTER SET utf8 comment='help keywords';
+CREATE TABLE IF NOT EXISTS time_zone_name (   Name char(64) NOT NULL, Time_zone_id int unsigned NOT NULL, PRIMARY KEY Name (Name) ) engine=MyISAM CHARACTER SET utf8   comment='Time zone names';
+Warnings:
+Warning	1280	Name 'Name' ignored for PRIMARY key.
+CREATE TABLE IF NOT EXISTS time_zone (   Time_zone_id int unsigned NOT NULL auto_increment, Use_leap_seconds enum('Y','N') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, PRIMARY KEY TzId (Time_zone_id) ) engine=MyISAM CHARACTER SET utf8   comment='Time zones';
+Warnings:
+Warning	1280	Name 'TzId' ignored for PRIMARY key.
+CREATE TABLE IF NOT EXISTS time_zone_transition (   Time_zone_id int unsigned NOT NULL, Transition_time bigint signed NOT NULL, Transition_type_id int unsigned NOT NULL, PRIMARY KEY TzIdTranTime (Time_zone_id, Transition_time) ) engine=MyISAM CHARACTER SET utf8   comment='Time zone transitions';
+Warnings:
+Warning	1280	Name 'TzIdTranTime' ignored for PRIMARY key.
+CREATE TABLE IF NOT EXISTS time_zone_transition_type (   Time_zone_id int unsigned NOT NULL, Transition_type_id int unsigned NOT NULL, Offset int signed DEFAULT 0 NOT NULL, Is_DST tinyint unsigned DEFAULT 0 NOT NULL, Abbreviation char(8) DEFAULT '' NOT NULL, PRIMARY KEY TzIdTrTId (Time_zone_id, Transition_type_id) ) engine=MyISAM CHARACTER SET utf8   comment='Time zone transition types';
+Warnings:
+Warning	1280	Name 'TzIdTrTId' ignored for PRIMARY key.
+CREATE TABLE IF NOT EXISTS time_zone_leap_second (   Transition_time bigint signed NOT NULL, Correction int signed NOT NULL, PRIMARY KEY TranTime (Transition_time) ) engine=MyISAM CHARACTER SET utf8   comment='Leap seconds information for time zones';
+Warnings:
+Warning	1280	Name 'TranTime' ignored for PRIMARY key.
+CREATE TABLE IF NOT EXISTS proc (db char(64) collate utf8_bin DEFAULT '' NOT NULL, name char(64) DEFAULT '' NOT NULL, type enum('FUNCTION','PROCEDURE') NOT NULL, specific_name char(64) DEFAULT '' NOT NULL, language enum('SQL') DEFAULT 'SQL' NOT NULL, sql_data_access enum( 'CONTAINS_SQL', 'NO_SQL', 'READS_SQL_DATA', 'MODIFIES_SQL_DATA') DEFAULT 'CONTAINS_SQL' NOT NULL, is_deterministic enum('YES','NO') DEFAULT 'NO' NOT NULL, security_type enum('INVOKER','DEFINER') DEFAULT 'DEFINER' NOT NULL, param_list blob NOT NULL, returns longblob DEFAULT '' NOT NULL, body longblob NOT NULL, definer char(77) collate utf8_bin DEFAULT '' NOT NULL, created timestamp, modified timestamp, sql_mode set( 'REAL_AS_FLOAT', 'PIPES_AS_CONCAT', 'ANSI_QUOTES', 'IGNORE_SPACE', 'IGNORE_BAD_TABLE_OPTIONS', 'ONLY_FULL_GROUP_BY', 'NO_UNSIGNED_SUBTRACTION', 'NO_DIR_IN_CREATE', 'POSTGRESQL', 'ORACLE', 'MSSQL', 'DB2', 'MAXDB', 'NO_KEY_OPTIONS', 'NO_TABLE_OPTIONS', 'NO_FIELD_OPTIONS', 'MYSQL323', 'MYSQL40', 'ANSI', 'NO_AUTO_VALUE_ON_ZERO', 'NO_BACKSLASH_ESCAPES', 'STRICT_TRANS_TABLES', 'STRICT_ALL_TABLES', 'NO_ZERO_IN_DATE', 'NO_ZERO_DATE', 'INVALID_DATES', 'ERROR_FOR_DIVISION_BY_ZERO', 'TRADITIONAL', 'NO_AUTO_CREATE_USER', 'HIGH_NOT_PRECEDENCE', 'NO_ENGINE_SUBSTITUTION', 'PAD_CHAR_TO_FULL_LENGTH') DEFAULT '' NOT NULL, comment text collate utf8_bin NOT NULL, character_set_client char(32) collate utf8_bin, collation_connection char(32) collate utf8_bin, db_collation char(32) collate utf8_bin, body_utf8 longblob, PRIMARY KEY (db,name,type)) engine=MyISAM character set utf8 comment='Stored Procedures';
+CREATE TABLE IF NOT EXISTS procs_priv ( Host char(60) binary DEFAULT '' NOT NULL, Db char(64) binary DEFAULT '' NOT NULL, User char(16) binary DEFAULT '' NOT NULL, Routine_name char(64) COLLATE utf8_general_ci DEFAULT '' NOT NULL, Routine_type enum('FUNCTION','PROCEDURE') NOT NULL, Grantor char(77) DEFAULT '' NOT NULL, Proc_priv set('Execute','Alter Routine','Grant') COLLATE utf8_general_ci DEFAULT '' NOT NULL, Timestamp timestamp, PRIMARY KEY (Host,Db,User,Routine_name,Routine_type), KEY Grantor (Grantor) ) engine=MyISAM CHARACTER SET utf8 COLLATE utf8_bin   comment='Procedure privileges';
+CREATE TABLE IF NOT EXISTS event ( db char(64) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL default '', name char(64) CHARACTER SET utf8 NOT NULL default '', body longblob NOT NULL, definer char(77) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL default '', execute_at DATETIME default NULL, interval_value int(11) default NULL, interval_field ENUM('YEAR','QUARTER','MONTH','DAY','HOUR','MINUTE','WEEK','SECOND','MICROSECOND','YEAR_MONTH','DAY_HOUR','DAY_MINUTE','DAY_SECOND','HOUR_MINUTE','HOUR_SECOND','MINUTE_SECOND','DAY_MICROSECOND','HOUR_MICROSECOND','MINUTE_MICROSECOND','SECOND_MICROSECOND') default NULL, created TIMESTAMP NOT NULL, modified TIMESTAMP NOT NULL, last_executed DATETIME default NULL, starts DATETIME default NULL, ends DATETIME default NULL, status ENUM('ENABLED','DISABLED','SLAVESIDE_DISABLED') NOT NULL default 'ENABLED', on_completion ENUM('DROP','PRESERVE') NOT NULL default 'DROP', sql_mode  set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','IGNORE_BAD_TABLE_OPTIONS','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH') DEFAULT '' NOT NULL, comment char(64) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL default '', originator INTEGER UNSIGNED NOT NULL, time_zone char(64) CHARACTER SET latin1 NOT NULL DEFAULT 'SYSTEM', character_set_client char(32) collate utf8_bin, collation_connection char(32) collate utf8_bin, db_collation char(32) collate utf8_bin, body_utf8 longblob, PRIMARY KEY (db, name) ) ENGINE=MyISAM DEFAULT CHARSET=utf8 COMMENT 'Events';
+CREATE TABLE IF NOT EXISTS ndb_binlog_index (Position BIGINT UNSIGNED NOT NULL, File VARCHAR(255) NOT NULL, epoch BIGINT UNSIGNED NOT NULL, inserts BIGINT UNSIGNED NOT NULL, updates BIGINT UNSIGNED NOT NULL, deletes BIGINT UNSIGNED NOT NULL, schemaops BIGINT UNSIGNED NOT NULL, PRIMARY KEY(epoch)) ENGINE=MYISAM;
+CREATE TABLE IF NOT EXISTS proxies_priv (Host char(60) binary DEFAULT '' NOT NULL, User char(16) binary DEFAULT '' NOT NULL, Proxied_host char(60) binary DEFAULT '' NOT NULL, Proxied_user char(16) binary DEFAULT '' NOT NULL, With_grant BOOL DEFAULT 0 NOT NULL, Grantor char(77) DEFAULT '' NOT NULL, Timestamp timestamp, PRIMARY KEY Host (Host,User,Proxied_host,Proxied_user), KEY Grantor (Grantor) ) engine=MyISAM CHARACTER SET utf8 COLLATE utf8_bin comment='User proxy privileges';
+Warnings:
+Warning	1280	Name 'Host' ignored for PRIMARY key.
+show tables;
+Tables_in_db
+column_stats
+columns_priv
+db
+event
+func
+general_log
+global_priv
+gtid_slave_pos
+help_category
+help_keyword
+help_relation
+help_topic
+host
+index_stats
+innodb_index_stats
+innodb_table_stats
+ndb_binlog_index
+plugin
+proc
+procs_priv
+proxies_priv
+roles_mapping
+servers
+slow_log
+table_stats
+tables_priv
+time_zone
+time_zone_leap_second
+time_zone_name
+time_zone_transition
+time_zone_transition_type
+transaction_registry
+user
+show create table db;
+Table	Create Table
+db	CREATE TABLE `db` (
+  `Host` char(60) NOT NULL DEFAULT '',
+  `Db` char(64) NOT NULL DEFAULT '',
+  `User` char(80) NOT NULL DEFAULT '',
+  `Select_priv` enum('N','Y') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'N',
+  `Insert_priv` enum('N','Y') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'N',
+  `Update_priv` enum('N','Y') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'N',
+  `Delete_priv` enum('N','Y') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'N',
+  `Create_priv` enum('N','Y') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'N',
+  `Drop_priv` enum('N','Y') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'N',
+  `Grant_priv` enum('N','Y') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'N',
+  `References_priv` enum('N','Y') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'N',
+  `Index_priv` enum('N','Y') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'N',
+  `Alter_priv` enum('N','Y') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'N',
+  `Create_tmp_table_priv` enum('N','Y') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'N',
+  `Lock_tables_priv` enum('N','Y') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'N',
+  `Create_view_priv` enum('N','Y') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'N',
+  `Show_view_priv` enum('N','Y') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'N',
+  `Create_routine_priv` enum('N','Y') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'N',
+  `Alter_routine_priv` enum('N','Y') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'N',
+  `Execute_priv` enum('N','Y') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'N',
+  `Event_priv` enum('N','Y') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'N',
+  `Trigger_priv` enum('N','Y') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'N',
+  `Delete_history_priv` enum('N','Y') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'N',
+  PRIMARY KEY (`Host`,`Db`,`User`),
+  KEY `User` (`User`)
+) ENGINE=Aria DEFAULT CHARSET=utf8 COLLATE=utf8_bin PAGE_CHECKSUM=1 TRANSACTIONAL=1 COMMENT='Database privileges'
+show create table user;
+View	Create View	character_set_client	collation_connection
+user	CREATE ALGORITHM=UNDEFINED DEFINER=`mariadb.sys`@`localhost` SQL SECURITY DEFINER VIEW `user` AS select `global_priv`.`Host` AS `Host`,`global_priv`.`User` AS `User`,if(json_value(`global_priv`.`Priv`,'$.plugin') in ('mysql_native_password','mysql_old_password'),ifnull(json_value(`global_priv`.`Priv`,'$.authentication_string'),''),'') AS `Password`,if(json_value(`global_priv`.`Priv`,'$.access') & 1,'Y','N') AS `Select_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 2,'Y','N') AS `Insert_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 4,'Y','N') AS `Update_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 8,'Y','N') AS `Delete_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 16,'Y','N') AS `Create_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 32,'Y','N') AS `Drop_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 64,'Y','N') AS `Reload_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 128,'Y','N') AS `Shutdown_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 256,'Y','N') AS `Process_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 512,'Y','N') AS `File_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 1024,'Y','N') AS `Grant_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 2048,'Y','N') AS `References_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 4096,'Y','N') AS `Index_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 8192,'Y','N') AS `Alter_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 16384,'Y','N') AS `Show_db_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 32768,'Y','N') AS `Super_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 65536,'Y','N') AS `Create_tmp_table_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 131072,'Y','N') AS `Lock_tables_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 262144,'Y','N') AS `Execute_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 524288,'Y','N') AS `Repl_slave_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 1048576,'Y','N') AS `Repl_client_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 2097152,'Y','N') AS `Create_view_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 4194304,'Y','N') AS `Show_view_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 8388608,'Y','N') AS `Create_routine_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 16777216,'Y','N') AS `Alter_routine_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 33554432,'Y','N') AS `Create_user_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 67108864,'Y','N') AS `Event_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 134217728,'Y','N') AS `Trigger_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 268435456,'Y','N') AS `Create_tablespace_priv`,if(json_value(`global_priv`.`Priv`,'$.access') & 536870912,'Y','N') AS `Delete_history_priv`,elt(ifnull(json_value(`global_priv`.`Priv`,'$.ssl_type'),0) + 1,'','ANY','X509','SPECIFIED') AS `ssl_type`,ifnull(json_value(`global_priv`.`Priv`,'$.ssl_cipher'),'') AS `ssl_cipher`,ifnull(json_value(`global_priv`.`Priv`,'$.x509_issuer'),'') AS `x509_issuer`,ifnull(json_value(`global_priv`.`Priv`,'$.x509_subject'),'') AS `x509_subject`,cast(ifnull(json_value(`global_priv`.`Priv`,'$.max_questions'),0) as unsigned) AS `max_questions`,cast(ifnull(json_value(`global_priv`.`Priv`,'$.max_updates'),0) as unsigned) AS `max_updates`,cast(ifnull(json_value(`global_priv`.`Priv`,'$.max_connections'),0) as unsigned) AS `max_connections`,cast(ifnull(json_value(`global_priv`.`Priv`,'$.max_user_connections'),0) as signed) AS `max_user_connections`,ifnull(json_value(`global_priv`.`Priv`,'$.plugin'),'') AS `plugin`,ifnull(json_value(`global_priv`.`Priv`,'$.authentication_string'),'') AS `authentication_string`,if(ifnull(json_value(`global_priv`.`Priv`,'$.password_last_changed'),1) = 0,'Y','N') AS `password_expired`,elt(ifnull(json_value(`global_priv`.`Priv`,'$.is_role'),0) + 1,'N','Y') AS `is_role`,ifnull(json_value(`global_priv`.`Priv`,'$.default_role'),'') AS `default_role`,cast(ifnull(json_value(`global_priv`.`Priv`,'$.max_statement_time'),0.0) as decimal(12,6)) AS `max_statement_time` from `global_priv`	latin1	latin1_swedish_ci
+show create table func;
+Table	Create Table
+func	CREATE TABLE `func` (
+  `name` char(64) NOT NULL DEFAULT '',
+  `ret` tinyint(1) NOT NULL DEFAULT 0,
+  `dl` char(128) NOT NULL DEFAULT '',
+  `type` enum('function','aggregate') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
+  PRIMARY KEY (`name`)
+) ENGINE=Aria DEFAULT CHARSET=utf8 COLLATE=utf8_bin PAGE_CHECKSUM=1 TRANSACTIONAL=1 COMMENT='User defined functions'
+show create table global_priv;
+Table	Create Table
+global_priv	CREATE TABLE `global_priv` (
+  `Host` char(60) NOT NULL DEFAULT '',
+  `User` char(80) NOT NULL DEFAULT '',
+  `Priv` longtext CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NOT NULL DEFAULT '{}' CHECK (json_valid(`Priv`)),
+  PRIMARY KEY (`Host`,`User`)
+) ENGINE=Aria DEFAULT CHARSET=utf8 COLLATE=utf8_bin PAGE_CHECKSUM=1 TRANSACTIONAL=1 COMMENT='Users and global privileges'
+show create table tables_priv;
+Table	Create Table
+tables_priv	CREATE TABLE `tables_priv` (
+  `Host` char(60) NOT NULL DEFAULT '',
+  `Db` char(64) NOT NULL DEFAULT '',
+  `User` char(80) NOT NULL DEFAULT '',
+  `Table_name` char(64) NOT NULL DEFAULT '',
+  `Grantor` char(141) NOT NULL DEFAULT '',
+  `Timestamp` timestamp NOT NULL DEFAULT current_timestamp() ON UPDATE current_timestamp(),
+  `Table_priv` set('Select','Insert','Update','Delete','Create','Drop','Grant','References','Index','Alter','Create View','Show view','Trigger','Delete versioning rows') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT '',
+  `Column_priv` set('Select','Insert','Update','References') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT '',
+  PRIMARY KEY (`Host`,`Db`,`User`,`Table_name`),
+  KEY `Grantor` (`Grantor`)
+) ENGINE=Aria DEFAULT CHARSET=utf8 COLLATE=utf8_bin PAGE_CHECKSUM=1 TRANSACTIONAL=1 COMMENT='Table privileges'
+show create table columns_priv;
+Table	Create Table
+columns_priv	CREATE TABLE `columns_priv` (
+  `Host` char(60) NOT NULL DEFAULT '',
+  `Db` char(64) NOT NULL DEFAULT '',
+  `User` char(80) NOT NULL DEFAULT '',
+  `Table_name` char(64) NOT NULL DEFAULT '',
+  `Column_name` char(64) NOT NULL DEFAULT '',
+  `Timestamp` timestamp NOT NULL DEFAULT current_timestamp() ON UPDATE current_timestamp(),
+  `Column_priv` set('Select','Insert','Update','References') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT '',
+  PRIMARY KEY (`Host`,`Db`,`User`,`Table_name`,`Column_name`)
+) ENGINE=Aria DEFAULT CHARSET=utf8 COLLATE=utf8_bin PAGE_CHECKSUM=1 TRANSACTIONAL=1 COMMENT='Column privileges'
+show create table procs_priv;
+Table	Create Table
+procs_priv	CREATE TABLE `procs_priv` (
+  `Host` char(60) NOT NULL DEFAULT '',
+  `Db` char(64) NOT NULL DEFAULT '',
+  `User` char(80) NOT NULL DEFAULT '',
+  `Routine_name` char(64) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT '',
+  `Routine_type` enum('FUNCTION','PROCEDURE','PACKAGE','PACKAGE BODY') NOT NULL,
+  `Grantor` char(141) NOT NULL DEFAULT '',
+  `Proc_priv` set('Execute','Alter Routine','Grant') CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT '',
+  `Timestamp` timestamp NOT NULL DEFAULT current_timestamp() ON UPDATE current_timestamp(),
+  PRIMARY KEY (`Host`,`Db`,`User`,`Routine_name`,`Routine_type`),
+  KEY `Grantor` (`Grantor`)
+) ENGINE=Aria DEFAULT CHARSET=utf8 COLLATE=utf8_bin PAGE_CHECKSUM=1 TRANSACTIONAL=1 COMMENT='Procedure privileges'
+show create table servers;
+Table	Create Table
+servers	CREATE TABLE `servers` (
+  `Server_name` char(64) NOT NULL DEFAULT '',
+  `Host` varchar(2048) NOT NULL DEFAULT '',
+  `Db` char(64) NOT NULL DEFAULT '',
+  `Username` char(80) NOT NULL DEFAULT '',
+  `Password` char(64) NOT NULL DEFAULT '',
+  `Port` int(4) NOT NULL DEFAULT 0,
+  `Socket` char(64) NOT NULL DEFAULT '',
+  `Wrapper` char(64) NOT NULL DEFAULT '',
+  `Owner` varchar(512) NOT NULL DEFAULT '',
+  PRIMARY KEY (`Server_name`)
+) ENGINE=Aria DEFAULT CHARSET=utf8 COLLATE=utf8_general_ci PAGE_CHECKSUM=1 TRANSACTIONAL=1 COMMENT='MySQL Foreign Servers table'
+show create table proc;
+Table	Create Table
+proc	CREATE TABLE `proc` (
+  `db` char(64) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '',
+  `name` char(64) NOT NULL DEFAULT '',
+  `type` enum('FUNCTION','PROCEDURE','PACKAGE','PACKAGE BODY') NOT NULL,
+  `specific_name` char(64) NOT NULL DEFAULT '',
+  `language` enum('SQL') NOT NULL DEFAULT 'SQL',
+  `sql_data_access` enum('CONTAINS_SQL','NO_SQL','READS_SQL_DATA','MODIFIES_SQL_DATA') NOT NULL DEFAULT 'CONTAINS_SQL',
+  `is_deterministic` enum('YES','NO') NOT NULL DEFAULT 'NO',
+  `security_type` enum('INVOKER','DEFINER') NOT NULL DEFAULT 'DEFINER',
+  `param_list` blob NOT NULL,
+  `returns` longblob NOT NULL,
+  `body` longblob NOT NULL,
+  `definer` char(141) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '',
+  `created` timestamp NOT NULL DEFAULT current_timestamp() ON UPDATE current_timestamp(),
+  `modified` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
+  `sql_mode` set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','IGNORE_BAD_TABLE_OPTIONS','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH','EMPTY_STRING_IS_NULL','SIMULTANEOUS_ASSIGNMENT','TIME_ROUND_FRACTIONAL') NOT NULL DEFAULT '',
+  `comment` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
+  `character_set_client` char(32) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
+  `collation_connection` char(32) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
+  `db_collation` char(32) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
+  `body_utf8` longblob DEFAULT NULL,
+  `aggregate` enum('NONE','GROUP') NOT NULL DEFAULT 'NONE',
+  PRIMARY KEY (`db`,`name`,`type`)
+) ENGINE=Aria DEFAULT CHARSET=utf8 COLLATE=utf8_general_ci PAGE_CHECKSUM=1 TRANSACTIONAL=1 COMMENT='Stored Procedures'
+show create table event;
+Table	Create Table
+event	CREATE TABLE `event` (
+  `db` char(64) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '',
+  `name` char(64) NOT NULL DEFAULT '',
+  `body` longblob NOT NULL,
+  `definer` char(141) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '',
+  `execute_at` datetime DEFAULT NULL,
+  `interval_value` int(11) DEFAULT NULL,
+  `interval_field` enum('YEAR','QUARTER','MONTH','DAY','HOUR','MINUTE','WEEK','SECOND','MICROSECOND','YEAR_MONTH','DAY_HOUR','DAY_MINUTE','DAY_SECOND','HOUR_MINUTE','HOUR_SECOND','MINUTE_SECOND','DAY_MICROSECOND','HOUR_MICROSECOND','MINUTE_MICROSECOND','SECOND_MICROSECOND') DEFAULT NULL,
+  `created` timestamp NOT NULL DEFAULT current_timestamp() ON UPDATE current_timestamp(),
+  `modified` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
+  `last_executed` datetime DEFAULT NULL,
+  `starts` datetime DEFAULT NULL,
+  `ends` datetime DEFAULT NULL,
+  `status` enum('ENABLED','DISABLED','SLAVESIDE_DISABLED') NOT NULL DEFAULT 'ENABLED',
+  `on_completion` enum('DROP','PRESERVE') NOT NULL DEFAULT 'DROP',
+  `sql_mode` set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','IGNORE_BAD_TABLE_OPTIONS','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH','EMPTY_STRING_IS_NULL','SIMULTANEOUS_ASSIGNMENT','TIME_ROUND_FRACTIONAL') NOT NULL DEFAULT '',
+  `comment` char(64) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '',
+  `originator` int(10) unsigned NOT NULL,
+  `time_zone` char(64) CHARACTER SET latin1 COLLATE latin1_swedish_ci NOT NULL DEFAULT 'SYSTEM',
+  `character_set_client` char(32) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
+  `collation_connection` char(32) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
+  `db_collation` char(32) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
+  `body_utf8` longblob DEFAULT NULL,
+  PRIMARY KEY (`db`,`name`)
+) ENGINE=Aria DEFAULT CHARSET=utf8 COLLATE=utf8_general_ci PAGE_CHECKSUM=1 TRANSACTIONAL=1 COMMENT='Events'
+show create table general_log;
+Table	Create Table
+general_log	CREATE TABLE `general_log` (
+  `event_time` timestamp(6) NOT NULL DEFAULT current_timestamp(6) ON UPDATE current_timestamp(6),
+  `user_host` mediumtext NOT NULL,
+  `thread_id` bigint(21) unsigned NOT NULL,
+  `server_id` int(10) unsigned NOT NULL,
+  `command_type` varchar(64) NOT NULL,
+  `argument` mediumtext NOT NULL
+) ENGINE=CSV DEFAULT CHARSET=utf8 COLLATE=utf8_general_ci COMMENT='General log'
+show create table slow_log;
+Table	Create Table
+slow_log	CREATE TABLE `slow_log` (
+  `start_time` timestamp(6) NOT NULL DEFAULT current_timestamp(6) ON UPDATE current_timestamp(6),
+  `user_host` mediumtext NOT NULL,
+  `query_time` time(6) NOT NULL,
+  `lock_time` time(6) NOT NULL,
+  `rows_sent` int(11) NOT NULL,
+  `rows_examined` int(11) NOT NULL,
+  `db` varchar(512) NOT NULL,
+  `last_insert_id` int(11) NOT NULL,
+  `insert_id` int(11) NOT NULL,
+  `server_id` int(10) unsigned NOT NULL,
+  `sql_text` mediumtext NOT NULL,
+  `thread_id` bigint(21) unsigned NOT NULL,
+  `rows_affected` int(11) NOT NULL
+) ENGINE=CSV DEFAULT CHARSET=utf8 COLLATE=utf8_general_ci COMMENT='Slow log'
+show create table table_stats;
+Table	Create Table
+table_stats	CREATE TABLE `table_stats` (
+  `db_name` varchar(64) NOT NULL,
+  `table_name` varchar(64) NOT NULL,
+  `cardinality` bigint(21) unsigned DEFAULT NULL,
+  PRIMARY KEY (`db_name`,`table_name`)
+) ENGINE=Aria DEFAULT CHARSET=utf8 COLLATE=utf8_bin PAGE_CHECKSUM=1 TRANSACTIONAL=0 COMMENT='Statistics on Tables'
+show create table column_stats;
+Table	Create Table
+column_stats	CREATE TABLE `column_stats` (
+  `db_name` varchar(64) NOT NULL,
+  `table_name` varchar(64) NOT NULL,
+  `column_name` varchar(64) NOT NULL,
+  `min_value` varbinary(255) DEFAULT NULL,
+  `max_value` varbinary(255) DEFAULT NULL,
+  `nulls_ratio` decimal(12,4) DEFAULT NULL,
+  `avg_length` decimal(12,4) DEFAULT NULL,
+  `avg_frequency` decimal(12,4) DEFAULT NULL,
+  `hist_size` tinyint(3) unsigned DEFAULT NULL,
+  `hist_type` enum('SINGLE_PREC_HB','DOUBLE_PREC_HB') DEFAULT NULL,
+  `histogram` varbinary(255) DEFAULT NULL,
+  PRIMARY KEY (`db_name`,`table_name`,`column_name`)
+) ENGINE=Aria DEFAULT CHARSET=utf8 COLLATE=utf8_bin PAGE_CHECKSUM=1 TRANSACTIONAL=0 COMMENT='Statistics on Columns'
+show create table index_stats;
+Table	Create Table
+index_stats	CREATE TABLE `index_stats` (
+  `db_name` varchar(64) NOT NULL,
+  `table_name` varchar(64) NOT NULL,
+  `index_name` varchar(64) NOT NULL,
+  `prefix_arity` int(11) unsigned NOT NULL,
+  `avg_frequency` decimal(12,4) DEFAULT NULL,
+  PRIMARY KEY (`db_name`,`table_name`,`index_name`,`prefix_arity`)
+) ENGINE=Aria DEFAULT CHARSET=utf8 COLLATE=utf8_bin PAGE_CHECKSUM=1 TRANSACTIONAL=0 COMMENT='Statistics on Indexes'
+DROP VIEW user;
+DROP TABLE db, host, func, plugin, tables_priv, columns_priv, procs_priv, servers, help_category, help_keyword, help_relation, help_topic, proc, time_zone, time_zone_leap_second, time_zone_name, time_zone_transition, time_zone_transition_type, event, proxies_priv, general_log, slow_log, innodb_index_stats, innodb_table_stats, transaction_registry, table_stats, column_stats, index_stats, roles_mapping, gtid_slave_pos, global_priv, ndb_binlog_index;
+show tables;
+Tables_in_test
diff --git a/mysql-test/main/system_mysql_db_fix50568.test b/mysql-test/main/system_mysql_db_fix50568.test
new file mode 100644
index 00000000000..9ecb2a23d5f
--- /dev/null
+++ b/mysql-test/main/system_mysql_db_fix50568.test
@@ -0,0 +1,99 @@
+# Embedded server doesn't support external clients
+--source include/not_embedded.inc
+--source include/have_innodb.inc
+
+# Don't run this test if $MYSQL_FIX_PRIVILEGE_TABLES isn't set
+# to the location of mysql_fix_privilege_tables.sql
+if (!$MYSQL_FIX_PRIVILEGE_TABLES)
+{
+  skip Test needs MYSQL_FIX_PRIVILEGE_TABLES;
+}
+
+#
+# This is the test for mysql_fix_privilege_tables
+# It checks that a system tables from mysql 5.5.68
+# can be upgraded to current system table format
+#
+# Note: If this test fails, don't be confused about the errors reported
+# by mysql-test-run This shows warnings generated by
+# mysql_fix_system_tables which should be ignored.
+# Instead, concentrate on the errors in r/system_mysql_db.reject
+
+use test;
+
+# create system tables as in mysql-5.5.68
+CREATE TABLE IF NOT EXISTS db (   Host char(60) binary DEFAULT '' NOT NULL, Db char(64) binary DEFAULT '' NOT NULL, User char(16) binary DEFAULT '' NOT NULL, Select_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Insert_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Update_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Delete_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Drop_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Grant_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, References_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Index_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Alter_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_tmp_table_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Lock_tables_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_view_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Show_view_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_routine_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Alter_routine_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Execute_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Event_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Trigger_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, PRIMARY KEY Host (Host,Db,User), KEY User (User) ) engine=MyISAM CHARACTER SET utf8 COLLATE utf8_bin comment='Database privileges';
+
+CREATE TABLE IF NOT EXISTS host (  Host char(60) binary DEFAULT '' NOT NULL, Db char(64) binary DEFAULT '' NOT NULL, Select_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Insert_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Update_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Delete_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Drop_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Grant_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, References_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Index_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Alter_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_tmp_table_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Lock_tables_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_view_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Show_view_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_routine_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Alter_routine_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Execute_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Trigger_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, PRIMARY KEY Host (Host,Db) ) engine=MyISAM CHARACTER SET utf8 COLLATE utf8_bin comment='Host privileges;  Merged with database privileges';
+
+CREATE TABLE IF NOT EXISTS user (   Host char(60) binary DEFAULT '' NOT NULL, User char(16) binary DEFAULT '' NOT NULL, Password char(41) character set latin1 collate latin1_bin DEFAULT '' NOT NULL, Select_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Insert_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Update_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Delete_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Drop_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Reload_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Shutdown_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Process_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, File_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Grant_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, References_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Index_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Alter_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Show_db_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Super_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_tmp_table_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Lock_tables_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Execute_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Repl_slave_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Repl_client_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_view_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Show_view_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_routine_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Alter_routine_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_user_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Event_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Trigger_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, Create_tablespace_priv enum('N','Y') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, ssl_type enum('','ANY','X509', 'SPECIFIED') COLLATE utf8_general_ci DEFAULT '' NOT NULL, ssl_cipher BLOB NOT NULL, x509_issuer BLOB NOT NULL, x509_subject BLOB NOT NULL, max_questions int(11) unsigned DEFAULT 0  NOT NULL, max_updates int(11) unsigned DEFAULT 0  NOT NULL, max_connections int(11) unsigned DEFAULT 0  NOT NULL, max_user_connections int(11) DEFAULT 0  NOT NULL, plugin char(64) CHARACTER SET latin1 DEFAULT '' NOT NULL, authentication_string TEXT NOT NULL, PRIMARY KEY Host (Host,User) ) engine=MyISAM CHARACTER SET utf8 COLLATE utf8_bin comment='Users and global privileges';
+
+CREATE TABLE IF NOT EXISTS func (  name char(64) binary DEFAULT '' NOT NULL, ret tinyint(1) DEFAULT '0' NOT NULL, dl char(128) DEFAULT '' NOT NULL, type enum ('function','aggregate') COLLATE utf8_general_ci NOT NULL, PRIMARY KEY (name) ) engine=MyISAM CHARACTER SET utf8 COLLATE utf8_bin   comment='User defined functions';
+
+
+CREATE TABLE IF NOT EXISTS plugin ( name varchar(64) DEFAULT '' NOT NULL, dl varchar(128) DEFAULT '' NOT NULL, PRIMARY KEY (name) ) engine=MyISAM CHARACTER SET utf8 COLLATE utf8_general_ci comment='MySQL plugins';
+
+
+CREATE TABLE IF NOT EXISTS servers ( Server_name char(64) NOT NULL DEFAULT '', Host char(64) NOT NULL DEFAULT '', Db char(64) NOT NULL DEFAULT '', Username char(64) NOT NULL DEFAULT '', Password char(64) NOT NULL DEFAULT '', Port INT(4) NOT NULL DEFAULT '0', Socket char(64) NOT NULL DEFAULT '', Wrapper char(64) NOT NULL DEFAULT '', Owner char(64) NOT NULL DEFAULT '', PRIMARY KEY (Server_name)) CHARACTER SET utf8 comment='MySQL Foreign Servers table';
+
+
+CREATE TABLE IF NOT EXISTS tables_priv ( Host char(60) binary DEFAULT '' NOT NULL, Db char(64) binary DEFAULT '' NOT NULL, User char(16) binary DEFAULT '' NOT NULL, Table_name char(64) binary DEFAULT '' NOT NULL, Grantor char(77) DEFAULT '' NOT NULL, Timestamp timestamp, Table_priv set('Select','Insert','Update','Delete','Create','Drop','Grant','References','Index','Alter','Create View','Show view','Trigger') COLLATE utf8_general_ci DEFAULT '' NOT NULL, Column_priv set('Select','Insert','Update','References') COLLATE utf8_general_ci DEFAULT '' NOT NULL, PRIMARY KEY (Host,Db,User,Table_name), KEY Grantor (Grantor) ) engine=MyISAM CHARACTER SET utf8 COLLATE utf8_bin   comment='Table privileges';
+
+CREATE TABLE IF NOT EXISTS columns_priv ( Host char(60) binary DEFAULT '' NOT NULL, Db char(64) binary DEFAULT '' NOT NULL, User char(16) binary DEFAULT '' NOT NULL, Table_name char(64) binary DEFAULT '' NOT NULL, Column_name char(64) binary DEFAULT '' NOT NULL, Timestamp timestamp, Column_priv set('Select','Insert','Update','References') COLLATE utf8_general_ci DEFAULT '' NOT NULL, PRIMARY KEY (Host,Db,User,Table_name,Column_name) ) engine=MyISAM CHARACTER SET utf8 COLLATE utf8_bin   comment='Column privileges';
+
+
+CREATE TABLE IF NOT EXISTS help_topic ( help_topic_id int unsigned not null, name char(64) not null, help_category_id smallint unsigned not null, description text not null, example text not null, url text not null, primary key (help_topic_id), unique index (name) ) engine=MyISAM CHARACTER SET utf8 comment='help topics';
+
+
+CREATE TABLE IF NOT EXISTS help_category ( help_category_id smallint unsigned not null, name  char(64) not null, parent_category_id smallint unsigned null, url text not null, primary key (help_category_id), unique index (name) ) engine=MyISAM CHARACTER SET utf8 comment='help categories';
+
+
+CREATE TABLE IF NOT EXISTS help_relation ( help_topic_id int unsigned not null references help_topic, help_keyword_id  int unsigned not null references help_keyword, primary key (help_keyword_id, help_topic_id) ) engine=MyISAM CHARACTER SET utf8 comment='keyword-topic relation';
+
+
+CREATE TABLE IF NOT EXISTS help_keyword (   help_keyword_id  int unsigned not null, name char(64) not null, primary key (help_keyword_id), unique index (name) ) engine=MyISAM CHARACTER SET utf8 comment='help keywords';
+
+
+CREATE TABLE IF NOT EXISTS time_zone_name (   Name char(64) NOT NULL, Time_zone_id int unsigned NOT NULL, PRIMARY KEY Name (Name) ) engine=MyISAM CHARACTER SET utf8   comment='Time zone names';
+
+
+CREATE TABLE IF NOT EXISTS time_zone (   Time_zone_id int unsigned NOT NULL auto_increment, Use_leap_seconds enum('Y','N') COLLATE utf8_general_ci DEFAULT 'N' NOT NULL, PRIMARY KEY TzId (Time_zone_id) ) engine=MyISAM CHARACTER SET utf8   comment='Time zones';
+
+
+CREATE TABLE IF NOT EXISTS time_zone_transition (   Time_zone_id int unsigned NOT NULL, Transition_time bigint signed NOT NULL, Transition_type_id int unsigned NOT NULL, PRIMARY KEY TzIdTranTime (Time_zone_id, Transition_time) ) engine=MyISAM CHARACTER SET utf8   comment='Time zone transitions';
+
+
+CREATE TABLE IF NOT EXISTS time_zone_transition_type (   Time_zone_id int unsigned NOT NULL, Transition_type_id int unsigned NOT NULL, Offset int signed DEFAULT 0 NOT NULL, Is_DST tinyint unsigned DEFAULT 0 NOT NULL, Abbreviation char(8) DEFAULT '' NOT NULL, PRIMARY KEY TzIdTrTId (Time_zone_id, Transition_type_id) ) engine=MyISAM CHARACTER SET utf8   comment='Time zone transition types';
+
+
+CREATE TABLE IF NOT EXISTS time_zone_leap_second (   Transition_time bigint signed NOT NULL, Correction int signed NOT NULL, PRIMARY KEY TranTime (Transition_time) ) engine=MyISAM CHARACTER SET utf8   comment='Leap seconds information for time zones';
+
+CREATE TABLE IF NOT EXISTS proc (db char(64) collate utf8_bin DEFAULT '' NOT NULL, name char(64) DEFAULT '' NOT NULL, type enum('FUNCTION','PROCEDURE') NOT NULL, specific_name char(64) DEFAULT '' NOT NULL, language enum('SQL') DEFAULT 'SQL' NOT NULL, sql_data_access enum( 'CONTAINS_SQL', 'NO_SQL', 'READS_SQL_DATA', 'MODIFIES_SQL_DATA') DEFAULT 'CONTAINS_SQL' NOT NULL, is_deterministic enum('YES','NO') DEFAULT 'NO' NOT NULL, security_type enum('INVOKER','DEFINER') DEFAULT 'DEFINER' NOT NULL, param_list blob NOT NULL, returns longblob DEFAULT '' NOT NULL, body longblob NOT NULL, definer char(77) collate utf8_bin DEFAULT '' NOT NULL, created timestamp, modified timestamp, sql_mode set( 'REAL_AS_FLOAT', 'PIPES_AS_CONCAT', 'ANSI_QUOTES', 'IGNORE_SPACE', 'IGNORE_BAD_TABLE_OPTIONS', 'ONLY_FULL_GROUP_BY', 'NO_UNSIGNED_SUBTRACTION', 'NO_DIR_IN_CREATE', 'POSTGRESQL', 'ORACLE', 'MSSQL', 'DB2', 'MAXDB', 'NO_KEY_OPTIONS', 'NO_TABLE_OPTIONS', 'NO_FIELD_OPTIONS', 'MYSQL323', 'MYSQL40', 'ANSI', 'NO_AUTO_VALUE_ON_ZERO', 'NO_BACKSLASH_ESCAPES', 'STRICT_TRANS_TABLES', 'STRICT_ALL_TABLES', 'NO_ZERO_IN_DATE', 'NO_ZERO_DATE', 'INVALID_DATES', 'ERROR_FOR_DIVISION_BY_ZERO', 'TRADITIONAL', 'NO_AUTO_CREATE_USER', 'HIGH_NOT_PRECEDENCE', 'NO_ENGINE_SUBSTITUTION', 'PAD_CHAR_TO_FULL_LENGTH') DEFAULT '' NOT NULL, comment text collate utf8_bin NOT NULL, character_set_client char(32) collate utf8_bin, collation_connection char(32) collate utf8_bin, db_collation char(32) collate utf8_bin, body_utf8 longblob, PRIMARY KEY (db,name,type)) engine=MyISAM character set utf8 comment='Stored Procedures';
+
+CREATE TABLE IF NOT EXISTS procs_priv ( Host char(60) binary DEFAULT '' NOT NULL, Db char(64) binary DEFAULT '' NOT NULL, User char(16) binary DEFAULT '' NOT NULL, Routine_name char(64) COLLATE utf8_general_ci DEFAULT '' NOT NULL, Routine_type enum('FUNCTION','PROCEDURE') NOT NULL, Grantor char(77) DEFAULT '' NOT NULL, Proc_priv set('Execute','Alter Routine','Grant') COLLATE utf8_general_ci DEFAULT '' NOT NULL, Timestamp timestamp, PRIMARY KEY (Host,Db,User,Routine_name,Routine_type), KEY Grantor (Grantor) ) engine=MyISAM CHARACTER SET utf8 COLLATE utf8_bin   comment='Procedure privileges';
+
+
+CREATE TABLE IF NOT EXISTS event ( db char(64) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL default '', name char(64) CHARACTER SET utf8 NOT NULL default '', body longblob NOT NULL, definer char(77) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL default '', execute_at DATETIME default NULL, interval_value int(11) default NULL, interval_field ENUM('YEAR','QUARTER','MONTH','DAY','HOUR','MINUTE','WEEK','SECOND','MICROSECOND','YEAR_MONTH','DAY_HOUR','DAY_MINUTE','DAY_SECOND','HOUR_MINUTE','HOUR_SECOND','MINUTE_SECOND','DAY_MICROSECOND','HOUR_MICROSECOND','MINUTE_MICROSECOND','SECOND_MICROSECOND') default NULL, created TIMESTAMP NOT NULL, modified TIMESTAMP NOT NULL, last_executed DATETIME default NULL, starts DATETIME default NULL, ends DATETIME default NULL, status ENUM('ENABLED','DISABLED','SLAVESIDE_DISABLED') NOT NULL default 'ENABLED', on_completion ENUM('DROP','PRESERVE') NOT NULL default 'DROP', sql_mode  set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','IGNORE_BAD_TABLE_OPTIONS','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH') DEFAULT '' NOT NULL, comment char(64) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL default '', originator INTEGER UNSIGNED NOT NULL, time_zone char(64) CHARACTER SET latin1 NOT NULL DEFAULT 'SYSTEM', character_set_client char(32) collate utf8_bin, collation_connection char(32) collate utf8_bin, db_collation char(32) collate utf8_bin, body_utf8 longblob, PRIMARY KEY (db, name) ) ENGINE=MyISAM DEFAULT CHARSET=utf8 COMMENT 'Events';
+
+
+CREATE TABLE IF NOT EXISTS ndb_binlog_index (Position BIGINT UNSIGNED NOT NULL, File VARCHAR(255) NOT NULL, epoch BIGINT UNSIGNED NOT NULL, inserts BIGINT UNSIGNED NOT NULL, updates BIGINT UNSIGNED NOT NULL, deletes BIGINT UNSIGNED NOT NULL, schemaops BIGINT UNSIGNED NOT NULL, PRIMARY KEY(epoch)) ENGINE=MYISAM;
+
+CREATE TABLE IF NOT EXISTS proxies_priv (Host char(60) binary DEFAULT '' NOT NULL, User char(16) binary DEFAULT '' NOT NULL, Proxied_host char(60) binary DEFAULT '' NOT NULL, Proxied_user char(16) binary DEFAULT '' NOT NULL, With_grant BOOL DEFAULT 0 NOT NULL, Grantor char(77) DEFAULT '' NOT NULL, Timestamp timestamp, PRIMARY KEY Host (Host,User,Proxied_host,Proxied_user), KEY Grantor (Grantor) ) engine=MyISAM CHARACTER SET utf8 COLLATE utf8_bin comment='User proxy privileges';
+
+
+-- disable_result_log
+# Run the mysql_fix_privilege_tables.sql using "mysql --force"
+--exec $MYSQL --force test < $MYSQL_FIX_PRIVILEGE_TABLES
+-- enable_result_log
+
+# Dump the tables that should be compared
+-- source include/system_db_struct.inc
+
+# Drop all tables created by this test
+DROP VIEW user;
+DROP TABLE db, host, func, plugin, tables_priv, columns_priv, procs_priv, servers, help_category, help_keyword, help_relation, help_topic, proc, time_zone, time_zone_leap_second, time_zone_name, time_zone_transition, time_zone_transition_type, event, proxies_priv, general_log, slow_log, innodb_index_stats, innodb_table_stats, transaction_registry, table_stats, column_stats, index_stats, roles_mapping, gtid_slave_pos, global_priv, ndb_binlog_index;
+
+# check that we dropped all system tables
+show tables;
+
+# End of 4.1 tests
diff --git a/scripts/mysql_system_tables_fix.sql b/scripts/mysql_system_tables_fix.sql
index 796bc90a2ee..c009a3de4a0 100644
--- a/scripts/mysql_system_tables_fix.sql
+++ b/scripts/mysql_system_tables_fix.sql
@@ -239,7 +239,6 @@ SET GLOBAL general_log = 'OFF';
 ALTER TABLE general_log
   MODIFY event_time TIMESTAMP(6) NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
   MODIFY user_host MEDIUMTEXT NOT NULL,
-  MODIFY thread_id INTEGER NOT NULL,
   MODIFY server_id INTEGER UNSIGNED NOT NULL,
   MODIFY command_type VARCHAR(64) NOT NULL,
   MODIFY argument MEDIUMTEXT NOT NULL,
@@ -841,3 +840,8 @@ IF 1 = (SELECT count(*) FROM information_schema.VIEWS WHERE TABLE_CATALOG = 'def
 END IF//
 
 DELIMITER ;
+
+# MDEV-22683 - upgrade Host and Owner of servers
+ALTER TABLE servers
+  MODIFY Host varchar(2048) NOT NULL DEFAULT '',
+  MODIFY Owner varchar(512) NOT NULL DEFAULT '';