mariadb/mysql-test/r/system_mysql_db.result
Michael Widenius 7800d93bc3 Allow one to block an account by using GRANT max_user_connections = -1
One can set @@global.max_user_connections to -1 to block anyone, except SUPER user, to login.
If max_user_connection is 0, one can't change it without a restart (needed to get user connections counting to work correctly)


mysql-test/r/system_mysql_db.result:
  Changed max_user_connections to handle negative numbers.
mysql-test/r/user_limits-2.result:
  New test case that one can't change max_user_connection if it was 0
mysql-test/r/user_limits.result:
  Fixed wrong error messages.
mysql-test/r/variables.result:
  Store / restore max_user_connections (needed as there is now a --master.opt file that changes it)
mysql-test/t/subselect_mat_cost-master.opt:
  Enable slow query log (as this test found some errors in slow query logging)
mysql-test/t/user_limits-2.test:
  New test case that one can't change max_user_connection if it was 0
mysql-test/t/user_limits-master.opt:
  Set max_user_connections (as one can't change it if it was 0)
mysql-test/t/user_limits.test:
  Test max_user_connections -1
mysql-test/t/variables-master.opt:
  Set max_user_connections (as one can't change it if it was 0)
mysql-test/t/variables.test:
  Set/restore max_user_connections
scripts/Makefile.am:
  Add a text message to mysql_fix_privilege_tables.sql that it's automaticly generated
scripts/mysql_system_tables.sql:
  Change max_user_connections to signed
scripts/mysql_system_tables_fix.sql:
  Change max_user_connections to signed
sql/item_func.cc:
  Change SHOW_INT to be signed.
  (Needed for max_user_connections and it's probably a bug that it was not originally signed)
sql/log.cc:
  Remove some code that was not needed (All these variables are reset at start of query)
sql/mysql_priv.h:
  Made max_user_connections signed.
  Added max_user_connections_checking
sql/mysqld.cc:
  Added max_user_connections_checking so that we know if max_user_connections was 0 at startup
  (Which means that we will not do connection counting for accounts that don't have user resource limits)
  Set thd->start_utime at same time as thr_create_utime. (Before start_utime could be < thr_create_utime which lead to wrong query counting)
sql/set_var.cc:
  Don't allow one to change 'max_user_connections' if it was 0 at startup.
sql/sql_acl.cc:
  Change user_connection counting to be negative.
sql/sql_connect.cc:
  If max_user_connections is < 0 then only SUPER user can login.
  Fixed wrong variable names for error messages.
  Fixed wrong initial value for questions.
  Set thd->start_utime and thd->thr_create_utime at startup.  Needed to get time_out_user_resource_limits() to work.
sql/sql_show.cc:
  SHOW_INT is now negative
sql/sql_yacc.yy:
  Support negative values for MAX_USER_CONNECTIONS
sql/structs.h:
  Make user connect counting work with signed numbers.
2011-09-26 20:26:47 +03:00

266 lines
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Text

show tables;
Tables_in_db
columns_priv
db
event
func
general_log
help_category
help_keyword
help_relation
help_topic
host
ndb_binlog_index
plugin
proc
procs_priv
servers
slow_log
tables_priv
time_zone
time_zone_leap_second
time_zone_name
time_zone_transition
time_zone_transition_type
user
show create table db;
Table Create Table
db CREATE TABLE `db` (
`Host` char(60) COLLATE utf8_bin NOT NULL DEFAULT '',
`Db` char(64) COLLATE utf8_bin NOT NULL DEFAULT '',
`User` char(16) COLLATE utf8_bin NOT NULL DEFAULT '',
`Select_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Insert_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Update_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Delete_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Drop_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Grant_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`References_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Index_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Alter_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_tmp_table_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Lock_tables_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_view_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Show_view_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_routine_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Alter_routine_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Execute_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Event_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Trigger_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
PRIMARY KEY (`Host`,`Db`,`User`),
KEY `User` (`User`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='Database privileges'
show create table host;
Table Create Table
host CREATE TABLE `host` (
`Host` char(60) COLLATE utf8_bin NOT NULL DEFAULT '',
`Db` char(64) COLLATE utf8_bin NOT NULL DEFAULT '',
`Select_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Insert_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Update_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Delete_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Drop_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Grant_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`References_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Index_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Alter_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_tmp_table_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Lock_tables_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_view_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Show_view_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_routine_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Alter_routine_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Execute_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Trigger_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
PRIMARY KEY (`Host`,`Db`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='Host privileges; Merged with database privileges'
show create table user;
Table Create Table
user CREATE TABLE `user` (
`Host` char(60) COLLATE utf8_bin NOT NULL DEFAULT '',
`User` char(16) COLLATE utf8_bin NOT NULL DEFAULT '',
`Password` char(41) CHARACTER SET latin1 COLLATE latin1_bin NOT NULL DEFAULT '',
`Select_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Insert_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Update_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Delete_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Drop_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Reload_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Shutdown_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Process_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`File_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Grant_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`References_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Index_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Alter_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Show_db_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Super_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_tmp_table_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Lock_tables_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Execute_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Repl_slave_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Repl_client_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_view_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Show_view_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_routine_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Alter_routine_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_user_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Event_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Trigger_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`ssl_type` enum('','ANY','X509','SPECIFIED') CHARACTER SET utf8 NOT NULL DEFAULT '',
`ssl_cipher` blob NOT NULL,
`x509_issuer` blob NOT NULL,
`x509_subject` blob NOT NULL,
`max_questions` int(11) unsigned NOT NULL DEFAULT '0',
`max_updates` int(11) unsigned NOT NULL DEFAULT '0',
`max_connections` int(11) unsigned NOT NULL DEFAULT '0',
`max_user_connections` int(11) NOT NULL DEFAULT '0',
`plugin` char(60) CHARACTER SET latin1 NOT NULL DEFAULT '',
`auth_string` text COLLATE utf8_bin NOT NULL,
PRIMARY KEY (`Host`,`User`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='Users and global privileges'
show create table func;
Table Create Table
func CREATE TABLE `func` (
`name` char(64) COLLATE utf8_bin NOT NULL DEFAULT '',
`ret` tinyint(1) NOT NULL DEFAULT '0',
`dl` char(128) COLLATE utf8_bin NOT NULL DEFAULT '',
`type` enum('function','aggregate') CHARACTER SET utf8 NOT NULL,
PRIMARY KEY (`name`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='User defined functions'
show create table tables_priv;
Table Create Table
tables_priv CREATE TABLE `tables_priv` (
`Host` char(60) COLLATE utf8_bin NOT NULL DEFAULT '',
`Db` char(64) COLLATE utf8_bin NOT NULL DEFAULT '',
`User` char(16) COLLATE utf8_bin NOT NULL DEFAULT '',
`Table_name` char(64) COLLATE utf8_bin NOT NULL DEFAULT '',
`Grantor` char(77) COLLATE utf8_bin 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') CHARACTER SET utf8 NOT NULL DEFAULT '',
`Column_priv` set('Select','Insert','Update','References') CHARACTER SET utf8 NOT NULL DEFAULT '',
PRIMARY KEY (`Host`,`Db`,`User`,`Table_name`),
KEY `Grantor` (`Grantor`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='Table privileges'
show create table columns_priv;
Table Create Table
columns_priv CREATE TABLE `columns_priv` (
`Host` char(60) COLLATE utf8_bin NOT NULL DEFAULT '',
`Db` char(64) COLLATE utf8_bin NOT NULL DEFAULT '',
`User` char(16) COLLATE utf8_bin NOT NULL DEFAULT '',
`Table_name` char(64) COLLATE utf8_bin NOT NULL DEFAULT '',
`Column_name` char(64) COLLATE utf8_bin NOT NULL DEFAULT '',
`Timestamp` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
`Column_priv` set('Select','Insert','Update','References') CHARACTER SET utf8 NOT NULL DEFAULT '',
PRIMARY KEY (`Host`,`Db`,`User`,`Table_name`,`Column_name`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='Column privileges'
show create table procs_priv;
Table Create Table
procs_priv CREATE TABLE `procs_priv` (
`Host` char(60) COLLATE utf8_bin NOT NULL DEFAULT '',
`Db` char(64) COLLATE utf8_bin NOT NULL DEFAULT '',
`User` char(16) COLLATE utf8_bin NOT NULL DEFAULT '',
`Routine_name` char(64) CHARACTER SET utf8 NOT NULL DEFAULT '',
`Routine_type` enum('FUNCTION','PROCEDURE') COLLATE utf8_bin NOT NULL,
`Grantor` char(77) COLLATE utf8_bin NOT NULL DEFAULT '',
`Proc_priv` set('Execute','Alter Routine','Grant') CHARACTER SET utf8 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=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='Procedure privileges'
show create table servers;
Table Create Table
servers CREATE TABLE `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`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 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') 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(77) 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') NOT NULL DEFAULT '',
`comment` char(64) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '',
`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,
PRIMARY KEY (`db`,`name`,`type`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 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(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 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') 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 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,
PRIMARY KEY (`db`,`name`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 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 ON UPDATE CURRENT_TIMESTAMP,
`user_host` mediumtext NOT NULL,
`thread_id` int(11) NOT NULL,
`server_id` int(10) unsigned NOT NULL,
`command_type` varchar(64) NOT NULL,
`argument` mediumtext NOT NULL
) ENGINE=CSV DEFAULT CHARSET=utf8 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 ON UPDATE CURRENT_TIMESTAMP,
`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
) ENGINE=CSV DEFAULT CHARSET=utf8 COMMENT='Slow log'
show tables;
Tables_in_test