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Bug #29136 erred multi-delete on trans table does not rollback the statement

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similar to bug_27716, but it was stressed on in the synopsis on that there is another
side of the artifact affecting behaviour in transaction.

Fixed with deploying multi_delete::send_error() - otherwise never called - and refining its logic
to perform binlogging job if needed.

The changeset includes the following side effects:
- added tests to check bug_23333's scenarios on the mixture of tables for multi_update;
- fixes bug@30763 with two-liner patch and a test coinciding to one added for bug_23333.
This commit is contained in:
aelkin/elkin@koti.dsl.inet.fi 2007-10-13 15:49:42 +03:00
parent 4c01449b84
commit ed0ab76e28
10 changed files with 274 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
mysql-test/r/innodb.result
View File

@ -1119,6 +1119,19 @@ show master status /* there must be no UPDATE query event */;
File Position Binlog_Do_DB Binlog_Ignore_DB
master-bin.000001 98
drop table t1, t2;
drop table if exists t1, t2;
CREATE TABLE t1 (a int, PRIMARY KEY (a));
CREATE TABLE t2 (a int, PRIMARY KEY (a)) ENGINE=InnoDB;
create trigger trg_del_t2 after delete on t2 for each row
insert into t1 values (1);
insert into t1 values (1);
insert into t2 values (1),(2);
delete t2 from t2;
ERROR 23000: Duplicate entry '1' for key 1
select count(*) from t2 /* must be 2 as restored after rollback caused by the error */;
count(*)
2
drop table t1, t2;
create table t1 (a int, b int) engine=innodb;
insert into t1 values(20,null);
select t2.b, ifnull(t2.b,"this is null") from t1 as t2 left join t1 as t3 on
@ -1792,10 +1805,10 @@ Variable_name Value
Innodb_page_size 16384
show status like "Innodb_rows_deleted";
Variable_name Value
Innodb_rows_deleted 72
Innodb_rows_deleted 73
show status like "Innodb_rows_inserted";
Variable_name Value
Innodb_rows_inserted 29732
Innodb_rows_inserted 29734
show status like "Innodb_rows_updated";
Variable_name Value
Innodb_rows_updated 29532

52
mysql-test/r/mix_innodb_myisam_binlog.result
View File

@ -351,7 +351,7 @@ drop function if exists bug27417;
drop table if exists t1,t2;
CREATE TABLE t1 (a int NOT NULL auto_increment primary key) ENGINE=MyISAM;
CREATE TABLE t2 (a int NOT NULL auto_increment, PRIMARY KEY (a));
create function bug27417(n int)
create function bug27417(n int)
RETURNS int(11)
begin
insert into t1 values (null);
@ -393,7 +393,9 @@ count(*)
drop table t1,t2;
CREATE TABLE t1 (a int NOT NULL auto_increment primary key) ENGINE=MyISAM;
CREATE TABLE t2 (a int, PRIMARY KEY (a)) ENGINE=InnoDB;
CREATE TABLE t3 (a int, PRIMARY KEY (a), b int unique);
CREATE TABLE t3 (a int, PRIMARY KEY (a), b int unique) ENGINE=MyISAM;
CREATE TABLE t4 (a int, PRIMARY KEY (a), b int unique) ENGINE=Innodb;
CREATE TABLE t5 (a int, PRIMARY KEY (a)) ENGINE=InnoDB;
insert into t2 values (1);
reset master;
insert into t2 values (bug27417(1));
@ -427,6 +429,31 @@ master-bin.000001 190
select count(*) from t1 /* must be 2 */;
count(*)
2
delete from t3;
delete from t4;
insert into t3 values (1,1);
insert into t4 values (1,1),(2,2);
reset master;
UPDATE t4,t3 SET t4.a=t3.a + bug27417(1) /* top level non-ta table */;
ERROR 23000: Duplicate entry '2' for key 1
show master status /* the offset must denote there is the query */;
File Position Binlog_Do_DB Binlog_Ignore_DB
master-bin.000001 301
select count(*) from t1 /* must be 4 */;
count(*)
4
delete from t1;
delete from t3;
delete from t4;
insert into t3 values (1,1),(2,2);
insert into t4 values (1,1),(2,2);
reset master;
UPDATE t3,t4 SET t3.a=t4.a + bug27417(1);
ERROR 23000: Duplicate entry '2' for key 1
select count(*) from t1 /* must be 1 */;
count(*)
1
drop table t4;
delete from t1;
delete from t2;
delete from t3;
@ -443,6 +470,23 @@ master-bin.000001 246
select count(*) from t1 /* must be 1 */;
count(*)
1
drop trigger trg_del;
delete from t1;
delete from t2;
delete from t5;
create trigger trg_del_t2 after delete on t2 for each row
insert into t1 values (1);
insert into t2 values (2),(3);
insert into t5 values (1),(2);
reset master;
delete t2.* from t2,t5 where t2.a=t5.a + 1;
ERROR 23000: Duplicate entry '1' for key 1
show master status /* the offset must denote there is the query */;
File Position Binlog_Do_DB Binlog_Ignore_DB
master-bin.000001 274
select count(*) from t1 /* must be 1 */;
count(*)
1
delete from t1;
create table t4 (a int default 0, b int primary key) engine=innodb;
insert into t4 values (0, 17);
@ -458,7 +502,7 @@ count(*)
show master status /* the offset must denote there is the query */;
File Position Binlog_Do_DB Binlog_Ignore_DB
master-bin.000001 376
drop trigger trg_del;
drop table t1,t2,t3,t4;
drop trigger trg_del_t2;
drop table t1,t2,t3,t4,t5;
drop function bug27417;
end of tests

24
mysql-test/r/multi_update.result
View File

@ -545,7 +545,7 @@ a b
4 4
show master status /* there must be the UPDATE query event */;
File Position Binlog_Do_DB Binlog_Ignore_DB
master-bin.000001 189
master-bin.000001 260
delete from t1;
delete from t2;
insert into t1 values (1,2),(3,4),(4,4);
@ -555,6 +555,26 @@ UPDATE t2,t1 SET t2.a=t2.b where t2.a=t1.a;
ERROR 23000: Duplicate entry '4' for key 1
show master status /* there must be the UPDATE query event */;
File Position Binlog_Do_DB Binlog_Ignore_DB
master-bin.000001 204
master-bin.000001 275
drop table t1, t2;
drop table if exists t1, t2, t3;
CREATE TABLE t1 (a int, PRIMARY KEY (a));
CREATE TABLE t2 (a int, PRIMARY KEY (a));
CREATE TABLE t3 (a int, PRIMARY KEY (a)) ENGINE=MyISAM;
create trigger trg_del_t3 before delete on t3 for each row insert into t1 values (1);
insert into t2 values (1),(2);
insert into t3 values (1),(2);
reset master;
delete t3.* from t2,t3 where t2.a=t3.a;
ERROR 23000: Duplicate entry '1' for key 1
select count(*) from t1 /* must be 1 */;
count(*)
1
select count(*) from t3 /* must be 1 */;
count(*)
1
show binlog events from 98;
Log_name Pos Event_type Server_id End_log_pos Info
master-bin.000001 98 Query 1 # use `test`; delete t3.* from t2,t3 where t2.a=t3.a
drop table t1, t2, t3;
end of tests

32
mysql-test/t/innodb.test
View File

@ -792,6 +792,38 @@ show master status /* there must be no UPDATE query event */;
# cleanup bug#27716
drop table t1, t2;
#
# Bug #29136 erred multi-delete on trans table does not rollback
#
# prepare
--disable_warnings
drop table if exists t1, t2;
--enable_warnings
CREATE TABLE t1 (a int, PRIMARY KEY (a));
CREATE TABLE t2 (a int, PRIMARY KEY (a)) ENGINE=InnoDB;
create trigger trg_del_t2 after delete on t2 for each row
insert into t1 values (1);
insert into t1 values (1);
insert into t2 values (1),(2);
# exec cases A, B - see multi_update.test
# A. send_error() w/o send_eof() branch
--error ER_DUP_ENTRY
delete t2 from t2;
# check
select count(*) from t2 /* must be 2 as restored after rollback caused by the error */;
# cleanup bug#29136
drop table t1, t2;
#
# Testing of IFNULL
#

76
mysql-test/t/mix_innodb_myisam_binlog.test
View File

@ -347,7 +347,7 @@ CREATE TABLE t1 (a int NOT NULL auto_increment primary key) ENGINE=MyISAM;
CREATE TABLE t2 (a int NOT NULL auto_increment, PRIMARY KEY (a));
delimiter |;
create function bug27417(n int)
create function bug27417(n int)
RETURNS int(11)
begin
insert into t1 values (null);
@ -385,13 +385,17 @@ drop table t1,t2;
#
# Bug#23333 using the patch (and the test) for bug#27471
#
# throughout the bug tests
# t1 - non-trans side effects gatherer;
# t2 - transactional table;
#
CREATE TABLE t1 (a int NOT NULL auto_increment primary key) ENGINE=MyISAM;
CREATE TABLE t2 (a int, PRIMARY KEY (a)) ENGINE=InnoDB;
CREATE TABLE t3 (a int, PRIMARY KEY (a), b int unique);
CREATE TABLE t3 (a int, PRIMARY KEY (a), b int unique) ENGINE=MyISAM;
CREATE TABLE t4 (a int, PRIMARY KEY (a), b int unique) ENGINE=Innodb;
CREATE TABLE t5 (a int, PRIMARY KEY (a)) ENGINE=InnoDB;
#
@ -434,7 +438,7 @@ CREATE TABLE t3 (a int, PRIMARY KEY (a), b int unique);
select count(*) from t1 /* must be 2 */;
#
# UPDATE (multi-update see bug#27716)
# UPDATE inc multi-update
#
# prepare
@ -450,9 +454,48 @@ CREATE TABLE t3 (a int, PRIMARY KEY (a), b int unique);
show master status /* the offset must denote there is the query */;
select count(*) from t1 /* must be 2 */;
## multi_update::send_eof() branch
# prepare
delete from t3;
delete from t4;
insert into t3 values (1,1);
insert into t4 values (1,1),(2,2);
reset master;
# execute
--error ER_DUP_ENTRY
UPDATE t4,t3 SET t4.a=t3.a + bug27417(1) /* top level non-ta table */;
# check
show master status /* the offset must denote there is the query */;
select count(*) from t1 /* must be 4 */;
## send_error() branch of multi_update
# prepare
delete from t1;
delete from t3;
delete from t4;
insert into t3 values (1,1),(2,2);
insert into t4 values (1,1),(2,2);
reset master;
# execute
--error ER_DUP_ENTRY
UPDATE t3,t4 SET t3.a=t4.a + bug27417(1);
# check
select count(*) from t1 /* must be 1 */;
# cleanup
drop table t4;
#
# DELETE (for multi-delete see Bug #29136)
# DELETE incl multi-delete
#
# prepare
@ -472,6 +515,27 @@ CREATE TABLE t3 (a int, PRIMARY KEY (a), b int unique);
show master status /* the offset must denote there is the query */;
select count(*) from t1 /* must be 1 */;
# cleanup
drop trigger trg_del;
# prepare
delete from t1;
delete from t2;
delete from t5;
create trigger trg_del_t2 after delete on t2 for each row
insert into t1 values (1);
insert into t2 values (2),(3);
insert into t5 values (1),(2);
reset master;
# execute
--error ER_DUP_ENTRY
delete t2.* from t2,t5 where t2.a=t5.a + 1;
# check
show master status /* the offset must denote there is the query */;
select count(*) from t1 /* must be 1 */;
#
# LOAD DATA
@ -496,8 +560,8 @@ CREATE TABLE t3 (a int, PRIMARY KEY (a), b int unique);
#
drop trigger trg_del;
drop table t1,t2,t3,t4;
drop trigger trg_del_t2;
drop table t1,t2,t3,t4,t5;
drop function bug27417;

34
mysql-test/t/multi_update.test
View File

@ -574,4 +574,38 @@ show master status /* there must be the UPDATE query event */;
# cleanup bug#27716
drop table t1, t2;
#
# Bug #29136 erred multi-delete on trans table does not rollback
#
# prepare
--disable_warnings
drop table if exists t1, t2, t3;
--enable_warnings
CREATE TABLE t1 (a int, PRIMARY KEY (a));
CREATE TABLE t2 (a int, PRIMARY KEY (a));
CREATE TABLE t3 (a int, PRIMARY KEY (a)) ENGINE=MyISAM;
create trigger trg_del_t3 before delete on t3 for each row insert into t1 values (1);
insert into t2 values (1),(2);
insert into t3 values (1),(2);
reset master;
# exec cases B, A - see innodb.test
# B. send_eof() and send_error() afterward
--error ER_DUP_ENTRY
delete t3.* from t2,t3 where t2.a=t3.a;
# check
select count(*) from t1 /* must be 1 */;
select count(*) from t3 /* must be 1 */;
# the query must be in binlog (no surprise though)
source include/show_binlog_events.inc;
# cleanup bug#29136
drop table t1, t2, t3;
--echo end of tests

10
sql/sql_class.h
View File

@ -2356,6 +2356,11 @@ class multi_delete :public select_result_interceptor
/* True if at least one table we delete from is not transactional */
bool normal_tables;
bool delete_while_scanning;
/*
error handling (rollback and binlogging) can happen in send_eof()
so that afterward send_error() needs to find out that.
*/
bool error_handled;
public:
multi_delete(TABLE_LIST *dt, uint num_of_tables);
@ -2391,6 +2396,11 @@ class multi_update :public select_result_interceptor
/* True if the update operation has made a change in a transactional table */
bool transactional_tables;
bool ignore;
/*
error handling (rollback and binlogging) can happen in send_eof()
so that afterward send_error() needs to find out that.
*/
bool error_handled;
public:
multi_update(TABLE_LIST *ut, TABLE_LIST *leaves_list,

29
sql/sql_delete.cc
View File

@ -504,7 +504,7 @@ bool mysql_multi_delete_prepare(THD *thd)
multi_delete::multi_delete(TABLE_LIST *dt, uint num_of_tables_arg)
: delete_tables(dt), deleted(0), found(0),
num_of_tables(num_of_tables_arg), error(0),
do_delete(0), transactional_tables(0), normal_tables(0)
do_delete(0), transactional_tables(0), normal_tables(0), error_handled(0)
{
tempfiles= (Unique **) sql_calloc(sizeof(Unique *) * num_of_tables);
}
@ -685,12 +685,14 @@ void multi_delete::send_error(uint errcode,const char *err)
/* First send error what ever it is ... */
my_message(errcode, err, MYF(0));
/* If nothing deleted return */
if (!deleted)
/* the error was handled or nothing deleted and no side effects return */
if (error_handled ||
!thd->transaction.stmt.modified_non_trans_table && !deleted)
DBUG_VOID_RETURN;
/* Something already deleted so we have to invalidate cache */
query_cache_invalidate3(thd, delete_tables, 1);
if (deleted)
query_cache_invalidate3(thd, delete_tables, 1);
/*
If rows from the first table only has been deleted and it is
@ -710,12 +712,29 @@ void multi_delete::send_error(uint errcode,const char *err)
*/
error= 1;
send_eof();
DBUG_ASSERT(error_handled);
DBUG_VOID_RETURN;
}
if (thd->transaction.stmt.modified_non_trans_table)
{
/*
there is only side effects; to binlog with the error
*/
if (mysql_bin_log.is_open())
{
Query_log_event qinfo(thd, thd->query, thd->query_length,
transactional_tables, FALSE);
mysql_bin_log.write(&qinfo);
}
thd->transaction.all.modified_non_trans_table= true;
}
DBUG_ASSERT(!normal_tables || !deleted || thd->transaction.stmt.modified_non_trans_table);
DBUG_VOID_RETURN;
}
/*
Do delete from other tables.
Returns values:
@ -832,6 +851,8 @@ bool multi_delete::send_eof()
if (thd->transaction.stmt.modified_non_trans_table)
thd->transaction.all.modified_non_trans_table= TRUE;
}
if (local_error != 0)
error_handled= TRUE; // to force early leave from ::send_error()
/* Commit or rollback the current SQL statement */
if (transactional_tables)

7
sql/sql_parse.cc
View File

@ -3701,6 +3701,13 @@ end_with_restore_list:
SELECT_NO_JOIN_CACHE | SELECT_NO_UNLOCK |
OPTION_SETUP_TABLES_DONE,
del_result, unit, select_lex);
res|= thd->net.report_error;
if (unlikely(res))
{
/* If we had a another error reported earlier then this will be ignored */
del_result->send_error(ER_UNKNOWN_ERROR, "Execution of the query failed");
del_result->abort();
}
delete del_result;
}
else

22
sql/sql_update.cc
View File

@ -994,8 +994,8 @@ multi_update::multi_update(TABLE_LIST *table_list,
:all_tables(table_list), leaves(leaves_list), update_tables(0),
tmp_tables(0), updated(0), found(0), fields(field_list),
values(value_list), table_count(0), copy_field(0),
handle_duplicates(handle_duplicates_arg), do_update(1), trans_safe(0),
transactional_tables(1), ignore(ignore_arg)
handle_duplicates(handle_duplicates_arg), do_update(1), trans_safe(1),
transactional_tables(1), ignore(ignore_arg), error_handled(0)
{}
@ -1202,7 +1202,6 @@ multi_update::initialize_tables(JOIN *join)
if ((thd->options & OPTION_SAFE_UPDATES) && error_if_full_join(join))
DBUG_RETURN(1);
main_table=join->join_tab->table;
trans_safe= transactional_tables= main_table->file->has_transactions();
table_to_update= 0;
/* Any update has at least one pair (field, value) */
@ -1484,12 +1483,14 @@ void multi_update::send_error(uint errcode,const char *err)
/* First send error what ever it is ... */
my_error(errcode, MYF(0), err);
/* If nothing updated return */
if (updated == 0) /* the counter might be reset in send_eof */
return; /* and then the query has been binlogged */
/* the error was handled or nothing deleted and no side effects return */
if (error_handled ||
!thd->transaction.stmt.modified_non_trans_table && !updated)
return;
/* Something already updated so we have to invalidate cache */
query_cache_invalidate3(thd, update_tables, 1);
if (updated)
query_cache_invalidate3(thd, update_tables, 1);
/*
If all tables that has been updated are trans safe then just do rollback.
If not attempt to do remaining updates.
@ -1525,8 +1526,7 @@ void multi_update::send_error(uint errcode,const char *err)
transactional_tables, FALSE);
mysql_bin_log.write(&qinfo);
}
if (!trans_safe)
thd->transaction.all.modified_non_trans_table= TRUE;
thd->transaction.all.modified_non_trans_table= TRUE;
}
DBUG_ASSERT(trans_safe || !updated || thd->transaction.stmt.modified_non_trans_table);
@ -1739,8 +1739,6 @@ bool multi_update::send_eof()
{
if (local_error == 0)
thd->clear_error();
else
updated= 0; /* if there's an error binlog it here not in ::send_error */
Query_log_event qinfo(thd, thd->query, thd->query_length,
transactional_tables, FALSE);
if (mysql_bin_log.write(&qinfo) && trans_safe)
@ -1749,6 +1747,8 @@ bool multi_update::send_eof()
if (thd->transaction.stmt.modified_non_trans_table)
thd->transaction.all.modified_non_trans_table= TRUE;
}
if (local_error != 0)
error_handled= TRUE; // to force early leave from ::send_error()
if (transactional_tables)
{