2007-03-20 19:36:11 +01:00
insert into mysql.help_category(help_category_id,name)values(10001,'impossible_category_1');
2005-01-15 02:09:35 +01:00
Warnings:
Warning 1364 Field 'url' doesn't have a default value
2007-03-20 19:36:11 +01:00
select @category1_id:= 10001;
@category1_id:= 10001
10001
insert into mysql.help_category(help_category_id,name)values(10002,'impossible_category_2');
2005-01-15 02:09:35 +01:00
Warnings:
Warning 1364 Field 'url' doesn't have a default value
2007-03-20 19:36:11 +01:00
select @category2_id:= 10002;
@category2_id:= 10002
10002
insert into mysql.help_category(help_category_id,name,parent_category_id)values(10003,'impossible_category_3',@category2_id);
2005-01-15 02:09:35 +01:00
Warnings:
Warning 1364 Field 'url' doesn't have a default value
2007-03-20 19:36:11 +01:00
select @category3_id:= 10003;
@category3_id:= 10003
10003
insert into mysql.help_topic(help_topic_id,name,help_category_id,description,example)values(10101,'impossible_function_1',@category1_id,'description of \n impossible_function1\n','example of \n impossible_function1');
2005-01-15 02:09:35 +01:00
Warnings:
Warning 1364 Field 'url' doesn't have a default value
2007-03-20 19:36:11 +01:00
select @topic1_id:= 10101;
@topic1_id:= 10101
10101
insert into mysql.help_topic(help_topic_id,name,help_category_id,description,example)values(10102,'impossible_function_2',@category1_id,'description of \n impossible_function2\n','example of \n impossible_function2');
2005-01-15 02:09:35 +01:00
Warnings:
Warning 1364 Field 'url' doesn't have a default value
2007-03-20 19:36:11 +01:00
select @topic2_id:= 10102;
@topic2_id:= 10102
10102
insert into mysql.help_topic(help_topic_id,name,help_category_id,description,example)values(10103,'impossible_function_3',@category2_id,'description of \n impossible_function3\n','example of \n impossible_function3');
2005-01-15 02:09:35 +01:00
Warnings:
Warning 1364 Field 'url' doesn't have a default value
2007-03-20 19:36:11 +01:00
select @topic3_id:= 10103;
@topic3_id:= 10103
10103
insert into mysql.help_topic(help_topic_id,name,help_category_id,description,example)values(10104,'impossible_function_4',@category2_id,'description of \n impossible_function4\n','example of \n impossible_function4');
2005-01-15 02:09:35 +01:00
Warnings:
Warning 1364 Field 'url' doesn't have a default value
2007-03-20 19:36:11 +01:00
select @topic4_id:= 10104;
@topic4_id:= 10104
10104
insert into mysql.help_topic(help_topic_id,name,help_category_id,description,example)values(10105,'impossible_function_7',@category3_id,'description of \n impossible_function5\n','example of \n impossible_function7');
2005-01-15 02:09:35 +01:00
Warnings:
Warning 1364 Field 'url' doesn't have a default value
2007-03-20 19:36:11 +01:00
select @topic5_id:= 10105;
@topic5_id:= 10105
10105
insert into mysql.help_keyword(help_keyword_id,name)values(10201,'impossible_function_1');
select @keyword1_id:= 10201;
@keyword1_id:= 10201
10201
insert into mysql.help_keyword(help_keyword_id,name)values(10202,'impossible_function_5');
select @keyword2_id:= 10202;
@keyword2_id:= 10202
10202
insert into mysql.help_keyword(help_keyword_id,name)values(10203,'impossible_function_6');
select @keyword3_id:= 10203;
@keyword3_id:= 10203
10203
2003-05-29 23:47:31 +02:00
insert into mysql.help_relation(help_keyword_id,help_topic_id)values(@keyword1_id,@topic2_id);
insert into mysql.help_relation(help_keyword_id,help_topic_id)values(@keyword2_id,@topic1_id);
insert into mysql.help_relation(help_keyword_id,help_topic_id)values(@keyword3_id,@topic3_id);
insert into mysql.help_relation(help_keyword_id,help_topic_id)values(@keyword3_id,@topic4_id);
2003-02-12 20:55:37 +01:00
help 'function_of_my_dream';
2003-05-29 23:47:31 +02:00
name is_it_category
2003-02-12 20:55:37 +01:00
help '%possible_f%';
2003-05-29 23:47:31 +02:00
name is_it_category
2003-02-12 20:55:37 +01:00
impossible_function_1 N
impossible_function_2 N
impossible_function_3 N
2003-05-29 23:47:31 +02:00
impossible_function_4 N
impossible_function_7 N
2003-02-12 20:55:37 +01:00
help 'impossible_func%';
2003-05-29 23:47:31 +02:00
name is_it_category
2003-02-12 20:55:37 +01:00
impossible_function_1 N
impossible_function_2 N
impossible_function_3 N
2003-05-29 23:47:31 +02:00
impossible_function_4 N
impossible_function_7 N
2003-02-12 20:55:37 +01:00
help 'impossible_category%';
2003-05-29 23:47:31 +02:00
name is_it_category
2003-02-12 20:55:37 +01:00
impossible_category_1 Y
impossible_category_2 Y
2003-05-29 23:47:31 +02:00
impossible_category_3 Y
2003-02-12 20:55:37 +01:00
help 'impossible_%';
2003-05-29 23:47:31 +02:00
name is_it_category
2003-02-12 20:55:37 +01:00
impossible_function_1 N
impossible_function_2 N
impossible_function_3 N
2003-05-29 23:47:31 +02:00
impossible_function_4 N
impossible_function_7 N
2003-02-12 20:55:37 +01:00
impossible_category_1 Y
impossible_category_2 Y
2003-05-29 23:47:31 +02:00
impossible_category_3 Y
help '%function_1';
name description example
impossible_function_1 description of
impossible_function1
example of
impossible_function1
2003-02-12 20:55:37 +01:00
help '%function_2';
2003-05-29 23:47:31 +02:00
name description example
impossible_function_2 description of
impossible_function2
example of
2003-02-12 20:55:37 +01:00
impossible_function2
2003-05-29 23:47:31 +02:00
help '%function_3';
name description example
impossible_function_3 description of
impossible_function3
example of
impossible_function3
help '%function_4';
name description example
impossible_function_4 description of
impossible_function4
example of
impossible_function4
help '%function_5';
name description example
impossible_function_1 description of
impossible_function1
example of
impossible_function1
help '%function_6';
name is_it_category
impossible_function_3 N
impossible_function_4 N
help '%function_7';
name description example
impossible_function_7 description of
impossible_function5
example of
impossible_function7
2003-02-12 20:55:37 +01:00
help '%category_2';
2003-05-29 23:47:31 +02:00
source_category_name name is_it_category
impossible_category_2 impossible_function_3 N
impossible_category_2 impossible_function_4 N
impossible_category_2 impossible_category_3 Y
2003-02-12 20:55:37 +01:00
help 'impossible_function_1';
2003-05-29 23:47:31 +02:00
name description example
impossible_function_1 description of
impossible_function1
example of
2003-02-12 20:55:37 +01:00
impossible_function1
help 'impossible_category_1';
2003-05-29 23:47:31 +02:00
source_category_name name is_it_category
impossible_category_1 impossible_function_1 N
impossible_category_1 impossible_function_2 N
2003-12-10 05:31:42 +01:00
alter table mysql.help_relation engine=innodb;
alter table mysql.help_keyword engine=innodb;
alter table mysql.help_topic engine=innodb;
alter table mysql.help_category engine=innodb;
2003-02-12 20:55:37 +01:00
help 'function_of_my_dream';
2003-05-29 23:47:31 +02:00
name is_it_category
help '%possible_f%';
name is_it_category
2003-02-12 20:55:37 +01:00
impossible_function_1 N
impossible_function_2 N
impossible_function_3 N
2003-05-29 23:47:31 +02:00
impossible_function_4 N
impossible_function_7 N
2003-02-12 20:55:37 +01:00
help 'impossible_func%';
2003-05-29 23:47:31 +02:00
name is_it_category
2003-02-12 20:55:37 +01:00
impossible_function_1 N
impossible_function_2 N
impossible_function_3 N
2003-05-29 23:47:31 +02:00
impossible_function_4 N
impossible_function_7 N
2003-02-12 20:55:37 +01:00
help 'impossible_category%';
2003-05-29 23:47:31 +02:00
name is_it_category
2003-02-12 20:55:37 +01:00
impossible_category_1 Y
impossible_category_2 Y
2003-05-29 23:47:31 +02:00
impossible_category_3 Y
2003-02-12 20:55:37 +01:00
help 'impossible_%';
2003-05-29 23:47:31 +02:00
name is_it_category
2003-02-12 20:55:37 +01:00
impossible_function_1 N
impossible_function_2 N
impossible_function_3 N
2003-05-29 23:47:31 +02:00
impossible_function_4 N
impossible_function_7 N
2003-02-12 20:55:37 +01:00
impossible_category_1 Y
impossible_category_2 Y
2003-05-29 23:47:31 +02:00
impossible_category_3 Y
help '%function_1';
name description example
impossible_function_1 description of
impossible_function1
example of
impossible_function1
2003-02-12 20:55:37 +01:00
help '%function_2';
2003-05-29 23:47:31 +02:00
name description example
impossible_function_2 description of
impossible_function2
example of
2003-02-12 20:55:37 +01:00
impossible_function2
2003-05-29 23:47:31 +02:00
help '%function_3';
name description example
impossible_function_3 description of
impossible_function3
example of
impossible_function3
help '%function_4';
name description example
impossible_function_4 description of
impossible_function4
example of
impossible_function4
help '%function_5';
name description example
impossible_function_1 description of
impossible_function1
example of
impossible_function1
help '%function_6';
name is_it_category
impossible_function_3 N
impossible_function_4 N
help '%function_7';
name description example
impossible_function_7 description of
impossible_function5
example of
impossible_function7
2003-02-12 20:55:37 +01:00
help '%category_2';
2003-05-29 23:47:31 +02:00
source_category_name name is_it_category
impossible_category_2 impossible_function_3 N
impossible_category_2 impossible_function_4 N
impossible_category_2 impossible_category_3 Y
2003-02-12 20:55:37 +01:00
help 'impossible_function_1';
2003-05-29 23:47:31 +02:00
name description example
impossible_function_1 description of
impossible_function1
example of
2003-02-12 20:55:37 +01:00
impossible_function1
help 'impossible_category_1';
2003-05-29 23:47:31 +02:00
source_category_name name is_it_category
impossible_category_1 impossible_function_1 N
impossible_category_1 impossible_function_2 N
2003-12-10 05:31:42 +01:00
alter table mysql.help_relation engine=myisam;
alter table mysql.help_keyword engine=myisam;
alter table mysql.help_topic engine=myisam;
alter table mysql.help_category engine=myisam;
2003-05-29 23:47:31 +02:00
delete from mysql.help_topic where help_topic_id=@topic1_id;
delete from mysql.help_topic where help_topic_id=@topic2_id;
delete from mysql.help_topic where help_topic_id=@topic3_id;
delete from mysql.help_topic where help_topic_id=@topic4_id;
delete from mysql.help_topic where help_topic_id=@topic5_id;
delete from mysql.help_category where help_category_id=@category3_id;
delete from mysql.help_category where help_category_id=@category2_id;
delete from mysql.help_category where help_category_id=@category1_id;
delete from mysql.help_keyword where help_keyword_id=@keyword1_id;
delete from mysql.help_keyword where help_keyword_id=@keyword2_id;
delete from mysql.help_keyword where help_keyword_id=@keyword3_id;
delete from mysql.help_relation where help_keyword_id=@keyword1_id and help_topic_id=@topic2_id;
delete from mysql.help_relation where help_keyword_id=@keyword2_id and help_topic_id=@topic1_id;
delete from mysql.help_relation where help_keyword_id=@keyword3_id and help_topic_id=@topic3_id;
delete from mysql.help_relation where help_keyword_id=@keyword3_id and help_topic_id=@topic4_id;
BUG#9953: CONVERT_TZ requires mysql.time_zone_name to be locked
The problem was that some facilities (like CONVERT_TZ() function or
server HELP statement) may require implicit access to some tables in
'mysql' database. This access was done by ordinary means of adding
such tables to the list of tables the query is going to open.
However, if we issued LOCK TABLES before that, we would get "table
was not locked" error trying to open such implicit tables.
The solution is to treat certain tables as MySQL system tables, like
we already do for mysql.proc. Such tables may be opened for reading
at any moment regardless of any locks in effect. The cost of this is
that system table may be locked for writing only together with other
system tables, it is disallowed to lock system tables for writing and
have any other lock on any other table.
After this patch the following tables are treated as MySQL system
tables:
mysql.help_category
mysql.help_keyword
mysql.help_relation
mysql.help_topic
mysql.proc (it already was)
mysql.time_zone
mysql.time_zone_leap_second
mysql.time_zone_name
mysql.time_zone_transition
mysql.time_zone_transition_type
These tables are now opened with open_system_tables_for_read() and
closed with close_system_tables(), or one table may be opened with
open_system_table_for_update() and closed with close_thread_tables()
(the latter is used for mysql.proc table, which is updated as part of
normal MySQL server operation). These functions may be used when
some tables were opened and locked already.
NOTE: online update of time zone tables is not possible during
replication, because there's no time zone cache flush neither on LOCK
TABLES, nor on FLUSH TABLES, so the master may serve stale time zone
data from cache, while on slave updated data will be loaded from the
time zone tables.
2007-03-09 11:12:31 +01:00
End of 4.1 tests.
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (i INT);
LOCK TABLES t1 WRITE;
HELP no_such_topic;
name is_it_category
UNLOCK TABLES;
DROP TABLE t1;
End of 5.1 tests.
