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

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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.
This commit is contained in:
Davi Arnaut
2009-03-11 17:30:56 -03:00
parent cd7d25f4b9
commit c5bb49d020
11 changed files with 107 additions and 21 deletions
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20
mysql-test/r/log_tables.result
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@ -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';