mirror of
https://github.com/MariaDB/server.git
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a5efb91dea
Bug#54678: InnoDB, TRUNCATE, ALTER, I_S SELECT, crash or deadlock - Incompatible change: truncate no longer resorts to a row by row delete if the storage engine does not support the truncate method. Consequently, the count of affected rows does not, in any case, reflect the actual number of rows. - Incompatible change: it is no longer possible to truncate a table that participates as a parent in a foreign key constraint, unless it is a self-referencing constraint (both parent and child are in the same table). To work around this incompatible change and still be able to truncate such tables, disable foreign checks with SET foreign_key_checks=0 before truncate. Alternatively, if foreign key checks are necessary, please use a DELETE statement without a WHERE condition. Problem description: The problem was that for storage engines that do not support truncate table via a external drop and recreate, such as InnoDB which implements truncate via a internal drop and recreate, the delete_all_rows method could be invoked with a shared metadata lock, causing problems if the engine needed exclusive access to some internal metadata. This problem originated with the fact that there is no truncate specific handler method, which ended up leading to a abuse of the delete_all_rows method that is primarily used for delete operations without a condition. Solution: The solution is to introduce a truncate handler method that is invoked when the engine does not support truncation via a table drop and recreate. This method is invoked under a exclusive metadata lock, so that there is only a single instance of the table when the method is invoked. Also, the method is not invoked and a error is thrown if the table is a parent in a non-self-referencing foreign key relationship. This was necessary to avoid inconsistency as some integrity checks are bypassed. This is inline with the fact that truncate is primarily a DDL operation that was designed to quickly remove all data from a table. mysql-test/suite/innodb/t/innodb-truncate.test: Add test cases for truncate and foreign key checks. Also test that InnoDB resets auto-increment on truncate. mysql-test/suite/innodb/t/innodb.test: FK is not necessary, test is related to auto-increment. Update error number, truncate is no longer invoked if table is parent in a FK relationship. mysql-test/suite/innodb/t/innodb_mysql.test: Update error number, truncate is no longer invoked if table is parent in a FK relationship. Use delete instead of truncate, test is used to check the interaction of FKs, triggers and delete. mysql-test/suite/parts/inc/partition_check.inc: Fix typo. mysql-test/suite/sys_vars/t/foreign_key_checks_func.test: Update error number, truncate is no longer invoked if table is parent in a FK relationship. mysql-test/t/mdl_sync.test: Modify test case to reflect and ensure that truncate takes a exclusive metadata lock. mysql-test/t/trigger-trans.test: Update error number, truncate is no longer invoked if table is parent in a FK relationship. sql/ha_partition.cc: Reorganize the various truncate methods. delete_all_rows is now passed directly to the underlying engines, so as truncate. The code responsible for truncating individual partitions is moved to ha_partition::truncate_partition, which is invoked when a ALTER TABLE t1 TRUNCATE PARTITION p statement is executed. Since the partition truncate no longer can be invoked via delete, the bitmap operations are not necessary anymore. The explicit reset of the auto-increment value is also removed as the underlying engines are now responsible for reseting the value. sql/handler.cc: Wire up the handler truncate method. sql/handler.h: Introduce and document the truncate handler method. It assumes certain use cases of delete_all_rows. Add method to retrieve the list of foreign keys referencing a table. Method is used to avoid truncating tables that are parent in a foreign key relationship. sql/share/errmsg-utf8.txt: Add error message for truncate and FK. sql/sql_lex.h: Introduce a flag so that the partition engine can detect when a partition is being truncated. Used to give a special error. sql/sql_parse.cc: Function mysql_truncate_table no longer exists. sql/sql_partition_admin.cc: Implement the TRUNCATE PARTITION statement. sql/sql_truncate.cc: Change the truncate table implementation to use the new truncate handler method and to not rely on row-by-row delete anymore. The truncate handler method is always invoked with a exclusive metadata lock. Also, it is no longer possible to truncate a table that is parent in some non-self-referencing foreign key. storage/archive/ha_archive.cc: Rename method as the description indicates that in the future this could be a truncate operation. storage/blackhole/ha_blackhole.cc: Implement truncate as no operation for the blackhole engine in order to remain compatible with older releases. storage/federated/ha_federated.cc: Introduce truncate method that invokes delete_all_rows. This is required to support partition truncate as this form of truncate does not implement the drop and recreate protocol. storage/heap/ha_heap.cc: Introduce truncate method that invokes delete_all_rows. This is required to support partition truncate as this form of truncate does not implement the drop and recreate protocol. storage/ibmdb2i/ha_ibmdb2i.cc: Introduce truncate method that invokes delete_all_rows. This is required to support partition truncate as this form of truncate does not implement the drop and recreate protocol. storage/innobase/handler/ha_innodb.cc: Rename delete_all_rows to truncate. InnoDB now does truncate under a exclusive metadata lock. Introduce and reorganize methods used to retrieve the list of foreign keys referenced by a or referencing a table. storage/myisammrg/ha_myisammrg.cc: Introduce truncate method that invokes delete_all_rows. This is required in order to remain compatible with earlier releases where truncate would resort to a row-by-row delete.
604 lines
13 KiB
Text
604 lines
13 KiB
Text
drop table if exists t1, t2, t3;
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drop procedure if exists bug8850|
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create table t1 (a int) engine=innodb|
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create procedure bug8850()
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begin
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truncate table t1; insert t1 values (1); rollback;
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end|
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set autocommit=0|
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insert t1 values (2)|
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call bug8850()|
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commit|
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select * from t1|
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a
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call bug8850()|
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set autocommit=1|
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select * from t1|
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a
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drop table t1|
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drop procedure bug8850|
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drop function if exists bug10015_1|
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drop function if exists bug10015_2|
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drop function if exists bug10015_3|
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drop function if exists bug10015_4|
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drop function if exists bug10015_5|
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drop function if exists bug10015_6|
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drop function if exists bug10015_7|
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drop procedure if exists bug10015_8|
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create table t1 (id int) engine=innodb|
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create table t2 (id int primary key, j int) engine=innodb|
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insert into t1 values (1),(2),(3)|
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create function bug10015_1() returns int return (select count(*) from t1)|
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select *, bug10015_1() from t1|
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id bug10015_1()
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1 3
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2 3
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3 3
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drop function bug10015_1|
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create function bug10015_2() returns int
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begin
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declare i, s int;
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set i:= (select min(id) from t1);
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set s:= (select max(id) from t1);
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return (s - i);
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end|
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select *, bug10015_2() from t1|
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id bug10015_2()
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1 2
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2 2
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3 2
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drop function bug10015_2|
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create function bug10015_3() returns int
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return (select max(a.id - b.id) from t1 as a, t1 as b where a.id >= b.id)|
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select *, bug10015_3() from t1|
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id bug10015_3()
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1 2
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2 2
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3 2
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drop function bug10015_3|
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create function bug10015_4(i int) returns int
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begin
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declare m int;
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set m:= (select max(id) from t2);
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insert into t2 values (i, m);
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return m;
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end|
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select *, bug10015_4(id) from t1|
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id bug10015_4(id)
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1 NULL
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2 1
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3 2
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select * from t2|
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id j
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1 NULL
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2 1
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3 2
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drop function bug10015_4|
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create function bug10015_5(i int) returns int
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begin
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if (i = 5) then
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insert into t2 values (1, 0);
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end if;
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return i;
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end|
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insert into t1 values (bug10015_5(4)), (bug10015_5(5))|
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ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
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select * from t1|
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id
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1
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2
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3
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drop function bug10015_5|
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create function bug10015_6(i int) returns int
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begin
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declare continue handler for sqlexception set @error_in_func:= 1;
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if (i = 5) then
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insert into t2 values (4, 0), (1, 0);
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end if;
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return i;
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end|
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set @error_in_func:= 0|
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insert into t1 values (bug10015_6(5)), (bug10015_6(6))|
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Warnings:
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Error 1062 Duplicate entry '1' for key 'PRIMARY'
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select @error_in_func|
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@error_in_func
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1
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select * from t1|
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id
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1
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2
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3
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5
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6
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select * from t2|
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id j
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1 NULL
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2 1
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3 2
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4 0
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drop function bug10015_6|
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create function bug10015_7() returns int
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begin
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alter table t1 add k int;
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return 1;
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end|
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ERROR HY000: Explicit or implicit commit is not allowed in stored function or trigger.
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create function bug10015_7() returns int
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begin
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start transaction;
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return 1;
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end|
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ERROR HY000: Explicit or implicit commit is not allowed in stored function or trigger.
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create function bug10015_7() returns int
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begin
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drop table t1;
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return 1;
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end|
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ERROR HY000: Explicit or implicit commit is not allowed in stored function or trigger.
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create function bug10015_7() returns int
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begin
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drop temporary table t1;
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return 1;
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end|
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drop function bug10015_7|
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create function bug10015_7() returns int
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begin
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commit;
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return 1;
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end|
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ERROR HY000: Explicit or implicit commit is not allowed in stored function or trigger.
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create function bug10015_7() returns int
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begin
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call bug10015_8();
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return 1;
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end|
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create procedure bug10015_8() alter table t1 add k int|
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select *, bug10015_7() from t1|
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ERROR HY000: Explicit or implicit commit is not allowed in stored function or trigger.
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drop procedure bug10015_8|
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create procedure bug10015_8() start transaction|
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select *, bug10015_7() from t1|
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ERROR HY000: Explicit or implicit commit is not allowed in stored function or trigger.
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drop procedure bug10015_8|
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create procedure bug10015_8() drop temporary table if exists t1_temp|
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select *, bug10015_7() from t1|
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id bug10015_7()
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1 1
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2 1
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3 1
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5 1
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6 1
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drop procedure bug10015_8|
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create procedure bug10015_8() commit|
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select *, bug10015_7() from t1|
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ERROR HY000: Explicit or implicit commit is not allowed in stored function or trigger.
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drop procedure bug10015_8|
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drop function bug10015_7|
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drop table t1, t2|
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drop function if exists bug13825_0|
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drop function if exists bug13825_1|
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drop function if exists bug13825_2|
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drop function if exists bug13825_3|
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drop function if exists bug13825_4|
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drop function if exists bug13825_5|
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drop procedure if exists bug13825_0|
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drop procedure if exists bug13825_1|
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drop procedure if exists bug13825_2|
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drop table if exists t1|
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create table t1 (i int) engine=innodb|
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create table t2 (i int) engine=innodb|
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create function bug13825_0() returns int
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begin
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rollback to savepoint x;
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return 1;
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end|
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create function bug13825_1() returns int
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begin
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release savepoint x;
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return 1;
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end|
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create function bug13825_2() returns int
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begin
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insert into t1 values (2);
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savepoint x;
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insert into t1 values (3);
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rollback to savepoint x;
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insert into t1 values (4);
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return 1;
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end|
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create procedure bug13825_0()
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begin
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rollback to savepoint x;
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end|
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create procedure bug13825_1()
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begin
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release savepoint x;
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end|
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create procedure bug13825_2()
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begin
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savepoint x;
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end|
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insert into t2 values (1)|
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create trigger t2_bi before insert on t2 for each row
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rollback to savepoint x|
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create trigger t2_bu before update on t2 for each row
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release savepoint x|
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create trigger t2_bd before delete on t2 for each row
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begin
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insert into t1 values (2);
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savepoint x;
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insert into t1 values (3);
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rollback to savepoint x;
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insert into t1 values (4);
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end|
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create function bug13825_3(rb int) returns int
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begin
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insert into t1 values(1);
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savepoint x;
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insert into t1 values(2);
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if rb then
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rollback to savepoint x;
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end if;
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insert into t1 values(3);
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return rb;
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end|
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create function bug13825_4() returns int
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begin
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savepoint x;
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insert into t1 values(2);
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rollback to savepoint x;
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return 0;
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end|
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create function bug13825_5(p int) returns int
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begin
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savepoint x;
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insert into t2 values(p);
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rollback to savepoint x;
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insert into t2 values(p+1);
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return p;
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end|
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set autocommit= 0|
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begin |
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insert into t1 values (1)|
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savepoint x|
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set @a:= bug13825_0()|
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ERROR 42000: SAVEPOINT x does not exist
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insert into t2 values (2)|
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ERROR 42000: SAVEPOINT x does not exist
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set @a:= bug13825_1()|
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ERROR 42000: SAVEPOINT x does not exist
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update t2 set i = 2|
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ERROR 42000: SAVEPOINT x does not exist
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set @a:= bug13825_2()|
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select * from t1|
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i
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1
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2
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4
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rollback to savepoint x|
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select * from t1|
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i
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1
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delete from t2|
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select * from t1|
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i
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1
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2
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4
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rollback to savepoint x|
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select * from t1|
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i
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1
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release savepoint x|
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set @a:= bug13825_2()|
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select * from t1|
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i
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1
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2
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4
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rollback to savepoint x|
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ERROR 42000: SAVEPOINT x does not exist
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delete from t1|
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commit|
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begin|
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insert into t1 values (5)|
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savepoint x|
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insert into t1 values (6)|
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call bug13825_0()|
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select * from t1|
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i
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5
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call bug13825_1()|
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rollback to savepoint x|
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ERROR 42000: SAVEPOINT x does not exist
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savepoint x|
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insert into t1 values (7)|
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call bug13825_2()|
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rollback to savepoint x|
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select * from t1|
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i
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5
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7
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delete from t1|
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commit|
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set autocommit= 1|
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select bug13825_3(0)|
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bug13825_3(0)
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0
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select * from t1|
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i
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1
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2
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3
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delete from t1|
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select bug13825_3(1)|
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bug13825_3(1)
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1
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select * from t1|
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i
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1
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3
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delete from t1|
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set autocommit= 0|
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begin|
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insert into t1 values (1)|
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set @a:= bug13825_4()|
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select * from t1|
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i
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1
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delete from t1|
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commit|
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set autocommit= 1|
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drop table t2|
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create table t2 (i int) engine=innodb|
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insert into t1 values (1), (bug13825_5(2)), (3)|
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select * from t1|
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i
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1
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2
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3
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select * from t2|
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i
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3
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drop function bug13825_0|
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drop function bug13825_1|
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drop function bug13825_2|
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drop function bug13825_3|
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drop function bug13825_4|
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drop function bug13825_5|
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drop procedure bug13825_0|
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drop procedure bug13825_1|
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drop procedure bug13825_2|
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drop table t1, t2|
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drop table if exists t3|
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drop procedure if exists bug14840_1|
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drop procedure if exists bug14840_2|
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create table t3
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(
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x int,
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y int,
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primary key (x)
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) engine=InnoDB|
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create procedure bug14840_1()
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begin
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declare err int default 0;
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declare continue handler for sqlexception
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set err = err + 1;
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start transaction;
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update t3 set x = 1, y = 42 where x = 2;
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insert into t3 values (3, 4711);
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if err > 0 then
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rollback;
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else
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commit;
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end if;
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select * from t3;
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end|
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create procedure bug14840_2()
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begin
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declare err int default 0;
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declare continue handler for sqlexception
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begin
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set err = err + 1;
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select err as 'Ping';
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end;
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update t3 set x = 1, y = 42 where x = 2;
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update t3 set x = 1, y = 42 where x = 2;
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insert into t3 values (3, 4711);
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select * from t3;
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end|
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insert into t3 values (1, 3), (2, 5)|
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call bug14840_1()|
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x y
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1 3
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2 5
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delete from t3|
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insert into t3 values (1, 3), (2, 5)|
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call bug14840_2()|
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Ping
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1
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Ping
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2
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x y
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1 3
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2 5
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3 4711
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drop procedure bug14840_1|
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drop procedure bug14840_2|
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drop table t3|
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drop procedure if exists bug10656_create_index|
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drop procedure if exists bug10656_myjoin|
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drop procedure if exists bug10656_truncate_table|
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CREATE TABLE t3 (
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`ID` int(11) default NULL,
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`txt` char(5) default NULL
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) ENGINE=InnoDB DEFAULT CHARSET=latin1|
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INSERT INTO t3 (`ID`,`txt`) VALUES
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(1,'a'), (2,'b'), (3,'c'), (4,'d')|
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CREATE TABLE t4 (
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`ID` int(11) default NULL,
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`txt` char(5) default NULL
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) ENGINE=InnoDB DEFAULT CHARSET=latin1|
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INSERT INTO t4 (`ID`,`txt`) VALUES
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(1,'a'), (2,'b'), (3,'c'), (4,'d')|
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create procedure bug10656_create_index()
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begin
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create index bug10656_my_index on t3 (ID);
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end|
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call bug10656_create_index()|
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create procedure bug10656_myjoin()
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begin
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update t3, t4 set t3.txt = t4.txt where t3.id = t4.id;
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end|
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call bug10656_myjoin()|
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create procedure bug10656_truncate_table()
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begin
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truncate table t3;
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end|
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call bug10656_truncate_table()|
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drop procedure bug10656_create_index|
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drop procedure bug10656_myjoin|
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drop procedure bug10656_truncate_table|
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drop table t3, t4|
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create table t3 (
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a int primary key,
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ach char(1)
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) engine = innodb|
|
|
create table t4 (
|
|
b int primary key,
|
|
bch char(1)
|
|
) engine = innodb|
|
|
insert into t3 values (1 , 'aCh1' ) , ('2' , 'aCh2')|
|
|
Warnings:
|
|
Warning 1265 Data truncated for column 'ach' at row 1
|
|
Warning 1265 Data truncated for column 'ach' at row 2
|
|
insert into t4 values (1 , 'bCh1' )|
|
|
Warnings:
|
|
Warning 1265 Data truncated for column 'bch' at row 1
|
|
drop procedure if exists bug3448|
|
|
create procedure bug3448()
|
|
select * from t3 inner join t4 on t3.a = t4.b|
|
|
select * from t3 inner join t4 on t3.a = t4.b|
|
|
a ach b bch
|
|
1 a 1 b
|
|
call bug3448()|
|
|
a ach b bch
|
|
1 a 1 b
|
|
call bug3448()|
|
|
a ach b bch
|
|
1 a 1 b
|
|
drop procedure bug3448|
|
|
drop table t3, t4|
|
|
drop procedure if exists bug14210|
|
|
set @@session.max_heap_table_size=16384|
|
|
select @@session.max_heap_table_size|
|
|
@@session.max_heap_table_size
|
|
16384
|
|
create table t3 (a char(255)) engine=InnoDB|
|
|
create procedure bug14210_fill_table()
|
|
begin
|
|
declare table_size, max_table_size int default 0;
|
|
select @@session.max_heap_table_size into max_table_size;
|
|
delete from t3;
|
|
insert into t3 (a) values (repeat('a', 255));
|
|
repeat
|
|
insert into t3 select a from t3;
|
|
select count(*)*255 from t3 into table_size;
|
|
until table_size > max_table_size*2 end repeat;
|
|
end|
|
|
call bug14210_fill_table()|
|
|
drop procedure bug14210_fill_table|
|
|
create table t4 like t3|
|
|
create procedure bug14210()
|
|
begin
|
|
declare a char(255);
|
|
declare done int default 0;
|
|
declare c cursor for select * from t3;
|
|
declare continue handler for sqlstate '02000' set done = 1;
|
|
open c;
|
|
repeat
|
|
fetch c into a;
|
|
if not done then
|
|
insert into t4 values (upper(a));
|
|
end if;
|
|
until done end repeat;
|
|
close c;
|
|
end|
|
|
call bug14210()|
|
|
Warnings:
|
|
Error 1329 No data - zero rows fetched, selected, or processed
|
|
select count(*) from t4|
|
|
count(*)
|
|
256
|
|
drop table t3, t4|
|
|
drop procedure bug14210|
|
|
set @@session.max_heap_table_size=default|
|
|
CREATE DATABASE db_bug7787|
|
|
use db_bug7787|
|
|
CREATE PROCEDURE p1()
|
|
SHOW ENGINE INNODB STATUS; |
|
|
GRANT EXECUTE ON PROCEDURE p1 TO user_bug7787@localhost|
|
|
DROP DATABASE db_bug7787|
|
|
drop user user_bug7787@localhost|
|
|
use test|
|
|
create table t3 (f1 int, f2 varchar(3), primary key(f1)) engine=innodb|
|
|
insert into t3 values (1,'aaa'),(2,'bbb'),(3,'ccc')|
|
|
CREATE FUNCTION bug13575 ( p1 integer )
|
|
returns varchar(3)
|
|
BEGIN
|
|
DECLARE v1 VARCHAR(10) DEFAULT null;
|
|
SELECT f2 INTO v1 FROM t3 WHERE f1 = p1;
|
|
RETURN v1;
|
|
END|
|
|
select distinct f1, bug13575(f1) from t3 order by f1|
|
|
f1 bug13575(f1)
|
|
1 aaa
|
|
2 bbb
|
|
3 ccc
|
|
drop function bug13575|
|
|
drop table t3|
|
|
#
|
|
# End of 5.1 tests
|
|
#
|
|
#
|
|
# Bug #35877 Update .. WHERE with function, constraint violation, crash
|
|
#
|
|
DROP TABLE IF EXISTS t1_aux|
|
|
DROP TABLE IF EXISTS t1_not_null|
|
|
DROP FUNCTION IF EXISTS f1_two_inserts|
|
|
# MyISAM test
|
|
CREATE TABLE t1_not_null (f1 BIGINT, f2 BIGINT NOT NULL)|
|
|
CREATE TABLE t1_aux (f1 BIGINT, f2 BIGINT)|
|
|
INSERT INTO t1_aux VALUES (1,1)|
|
|
CREATE FUNCTION f1_two_inserts() returns INTEGER
|
|
BEGIN
|
|
INSERT INTO t1_not_null SET f1 = 10, f2 = NULL;
|
|
RETURN 1;
|
|
END|
|
|
UPDATE t1_aux SET f2 = 2 WHERE f1 = f1_two_inserts()|
|
|
ERROR 23000: Column 'f2' cannot be null
|
|
# InnoDB test
|
|
ALTER TABLE t1_not_null ENGINE = InnoDB|
|
|
ALTER TABLE t1_aux ENGINE = InnoDB|
|
|
UPDATE t1_aux SET f2 = 2 WHERE f1 = f1_two_inserts()|
|
|
ERROR 23000: Column 'f2' cannot be null
|
|
DROP TABLE t1_aux, t1_not_null|
|
|
DROP FUNCTION f1_two_inserts|
|
|
#
|
|
# Bug#49938: Failing assertion: inode or deadlock in fsp/fsp0fsp.c
|
|
#
|
|
DROP PROCEDURE IF EXISTS p1|
|
|
DROP TABLE IF EXISTS t1|
|
|
CREATE TABLE t1 (a INT) ENGINE=INNODB|
|
|
CREATE PROCEDURE p1()
|
|
BEGIN
|
|
TRUNCATE TABLE t1;
|
|
END|
|
|
LOCK TABLES t1 WRITE|
|
|
CALL p1()|
|
|
FLUSH TABLES;
|
|
UNLOCK TABLES|
|
|
CALL p1()|
|
|
DROP PROCEDURE p1|
|
|
DROP TABLE t1|
|