Bug#36540: CREATE EVENT and ALTER EVENT statements fail with large server_id

The problem is that creating a event could fail if the value of
the variable server_id didn't fit in the originator column of
the event system table. The cause is two-fold: it was possible
to set server_id to a value outside the documented range (from
0 to 2^32-1) and the originator column of the event table didn't
have enough room for values in this range.

The log tables (general_log and slow_log) also don't have a proper
column type to store the server_id and having a large server_id
value could prevent queries from being logged.

The solution is to ensure that all system tables that store the
server_id value have a proper column type (int unsigned) and that
the variable can't be set to a value that is not within the range.

mysql-test/r/events_bugs.result:
  Add test case result for Bug#36540
mysql-test/r/log_tables.result:
  Update column type.
mysql-test/r/system_mysql_db.result:
  Update column type.
mysql-test/r/variables.result:
  Add test case result for server_id value range.
mysql-test/suite/sys_vars/r/server_id_basic_64.result:
  Update test case results.
mysql-test/t/events_bugs.test:
  Add test case for Bug#36540
mysql-test/t/log_tables.test:
  Fix column type.
mysql-test/t/variables.test:
  Add test case for server_id value range.
scripts/mysql_system_tables.sql:
  Columns that store the server_id value must be of type INT UNSIGNED,
  fix event (originator), general_log and slow_log (server_id) tables
  in accordance.
scripts/mysql_system_tables_fix.sql:
  Columns that store the server_id value must be of type INT UNSIGNED,
  fix event (originator), general_log and slow_log (server_id) tables
  in accordance.
sql/mysqld.cc:
  Set min and max values for the server_id variable.
  Unfortunately we can't easily change server_id variable type
  from ulong to uint32 because of the sys_var classes.

1 files changed, 10 insertions, 10 deletions

diff --git a/mysql-test/r/log_tables.result b/mysql-test/r/log_tables.result
index 376120abcda..f8321520880 100644
--- a/mysql-test/r/log_tables.result
+++ b/mysql-test/r/log_tables.result
@@ -56,7 +56,7 @@ general_log	CREATE TABLE `general_log` (
   `event_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
   `user_host` mediumtext NOT NULL,
   `thread_id` int(11) NOT NULL,
-  `server_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'
@@ -65,7 +65,7 @@ Field	Type	Null	Key	Default	Extra
 event_time	timestamp	NO		CURRENT_TIMESTAMP	on update CURRENT_TIMESTAMP
 user_host	mediumtext	NO		NULL	
 thread_id	int(11)	NO		NULL	
-server_id	int(11)	NO		NULL	
+server_id	int(10) unsigned	NO		NULL	
 command_type	varchar(64)	NO		NULL	
 argument	mediumtext	NO		NULL	
 show create table mysql.slow_log;
@@ -80,7 +80,7 @@ slow_log	CREATE TABLE `slow_log` (
   `db` varchar(512) NOT NULL,
   `last_insert_id` int(11) NOT NULL,
   `insert_id` int(11) NOT NULL,
-  `server_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 fields from mysql.slow_log;
@@ -94,7 +94,7 @@ rows_examined	int(11)	NO		NULL
 db	varchar(512)	NO		NULL	
 last_insert_id	int(11)	NO		NULL	
 insert_id	int(11)	NO		NULL	
-server_id	int(11)	NO		NULL	
+server_id	int(10) unsigned	NO		NULL	
 sql_text	mediumtext	NO		NULL	
 flush logs;
 flush tables;
@@ -167,7 +167,7 @@ general_log	CREATE TABLE `general_log` (
   `event_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
   `user_host` mediumtext NOT NULL,
   `thread_id` int(11) NOT NULL,
-  `server_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'
@@ -183,7 +183,7 @@ slow_log	CREATE TABLE `slow_log` (
   `db` varchar(512) NOT NULL,
   `last_insert_id` int(11) NOT NULL,
   `insert_id` int(11) NOT NULL,
-  `server_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'
 alter table mysql.general_log engine=myisam;
@@ -194,7 +194,7 @@ general_log	CREATE TABLE `general_log` (
   `event_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
   `user_host` mediumtext NOT NULL,
   `thread_id` int(11) NOT NULL,
-  `server_id` int(11) NOT NULL,
+  `server_id` int(10) unsigned NOT NULL,
   `command_type` varchar(64) NOT NULL,
   `argument` mediumtext NOT NULL
 ) ENGINE=MyISAM DEFAULT CHARSET=utf8 COMMENT='General log'
@@ -210,7 +210,7 @@ slow_log	CREATE TABLE `slow_log` (
   `db` varchar(512) NOT NULL,
   `last_insert_id` int(11) NOT NULL,
   `insert_id` int(11) NOT NULL,
-  `server_id` int(11) NOT NULL,
+  `server_id` int(10) unsigned NOT NULL,
   `sql_text` mediumtext NOT NULL
 ) ENGINE=MyISAM DEFAULT CHARSET=utf8 COMMENT='Slow log'
 set global general_log='ON';
@@ -268,7 +268,7 @@ CREATE TABLE `general_log` (
 ON UPDATE CURRENT_TIMESTAMP,
 `user_host` mediumtext NOT NULL,
 `thread_id` int(11) NOT NULL,
-`server_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';
@@ -283,7 +283,7 @@ ON UPDATE CURRENT_TIMESTAMP,
 `db` varchar(512) NOT NULL,
 `last_insert_id` int(11) NOT NULL,
 `insert_id` int(11) NOT NULL,
-`server_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';
 set global general_log='ON';