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mariadb/mysql-test/suite/federated/federated_partition.test
Aleksey Midenkov 160d97a4aa MDEV-18734 ASAN heap-use-after-free upon sorting by blob column from partitioned table
ha_partition stores records in array of m_ordered_rec_buffer and uses
it for prio queue in ordered index scan. When the records are restored
from the array the blob buffers may be already freed or rewritten.

The solution is to take temporary ownership of cached blob buffers via
String::swap(). When the record is restored from m_ordered_rec_buffer
the ownership is returned to table fields.

Cleanups:

init_record_priority_queue(): removed needless !m_ordered_rec_buffer
check as there is same assertion few lines before.

dbug_print_row() for arbitrary row pointer
2021-08-05 23:48:02 +03:00

79 lines
2.3 KiB
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#
# Tests for partitioned FEDERATED
#
source have_federatedx.inc;
source include/have_partition.inc;
source include/have_innodb.inc;
source include/federated.inc;
disable_warnings;
drop table if exists t1;
enable_warnings;
#
# Federated + partition
#
# Create 2 tables on the Slave, we can use different storage engines.
# Then create a Federated table on the Master, using different connect
# string to specify the two different target partitions we want to use.
#
connection slave;
create table federated.t1_1 (s1 int primary key) engine=myisam;
create table federated.t1_2 (s1 int primary key) engine=innodb;
connection master;
--replace_result $SLAVE_MYPORT SLAVE_PORT
eval create table t1 (s1 int primary key) engine=federated
partition by list (s1)
(partition p1 values in (1,3)
connection='mysql://root@127.0.0.1:$SLAVE_MYPORT/federated/t1_1',
partition p2 values in (2,4)
connection='mysql://root@127.0.0.1:$SLAVE_MYPORT/federated/t1_2');
--replace_result $SLAVE_MYPORT SLAVE_PORT
show create table t1;
insert into t1 values (1), (2), (3), (4);
select * from t1;
connection slave;
select * from federated.t1_1;
select * from federated.t1_2;
connection master;
drop table t1;
connection slave;
drop table federated.t1_1;
drop table federated.t1_2;
--echo End of 5.1 tests
--echo #
--echo # MDEV-18734 ASAN heap-use-after-free upon sorting by blob column from partitioned table
--echo #
connection slave;
use federated;
create table t1_1 (x int, b text, key(x));
create table t1_2 (x int, b text, key(x));
connection master;
--replace_result $SLAVE_MYPORT SLAVE_PORT
eval create table t1 (x int, b text, key(x)) engine=federated
partition by range columns (x) (
partition p1 values less than (40) connection='mysql://root@127.0.0.1:$SLAVE_MYPORT/federated/t1_1',
partition pn values less than (maxvalue) connection='mysql://root@127.0.0.1:$SLAVE_MYPORT/federated/t1_2'
);
insert t1 values (1, 1), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6), (7, 7), (8, 8);
insert t1 select x + 8, x + 8 from t1;
insert t1 select x + 16, x + 16 from t1;
insert t1 select x + 49, repeat(x + 49, 100) from t1;
flush tables;
--echo # This produces wrong result before MDEV-17573
select x, left(b, 10) from t1 where x > 30 and x < 60 order by b;
drop table t1;
connection slave;
drop table t1_1, t1_2;
source include/federated_cleanup.inc;