mariadb/mysql-test/suite/period/t/long_unique.test
Sergei Golubchik 633417308f MDEV-37312 ASAN errors or assertion failure upon attempt to UPDATE FOR PORTION violating long unique under READ COMMITTED
in case of a long unique conflict ha_write_row() used delete_row()
to remove the newly inserted row, and it used rnd_pos() to position
the cursor before deletion. This rnd_pos() was freeing and reallocating
blobs in record[0]. So when the code for FOR PORTION OF did
  store_record(record[2]);
  ha_write_row()
  restore_record(record[2]);
it ended up with blob pointers to a freed memory.

Let's use lookup_handler for deletion.
2025-07-26 10:54:28 +02:00

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--source include/have_innodb.inc
--source include/have_partition.inc
--echo #
--echo # Assertion `inited == NONE || update_handler != this' failed in
--echo # handler::ha_write_row
--echo #
CREATE TABLE t1 (f VARCHAR(4096), s DATE, e DATE, PERIOD FOR app(s,e), UNIQUE(f)) ENGINE=MyISAM;
INSERT INTO t1 VALUES ('foo', '2023-08-30', '2025-07-09'),('bar', '2021-01-01', '2021-12-31');
DELETE FROM t1 FOR PORTION OF app FROM '2023-08-29' TO '2025-07-01';
DROP TABLE t1;
--echo #
--echo # MDEV-21819 Assertion `inited == NONE || update_handler != this'
--echo # failed in handler::ha_write_row
--echo #
CREATE OR REPLACE TABLE t1 (a INT, b BLOB, s DATE, e DATE, PERIOD FOR app(s,e), UNIQUE(b)) ENGINE=MyISAM PARTITION BY HASH(a) PARTITIONS 2;
INSERT INTO t1 VALUES (1,'foo','2022-01-01', '2025-01-01');
--error ER_DUP_ENTRY
DELETE FROM t1 FOR PORTION OF app FROM '2023-01-01' TO '2024-01-01';
DROP TABLE t1;
--echo # End of 10.5 tests
--echo #
--echo # MDEV-37312 ASAN errors or assertion failure upon attempt to UPDATE FOR PORTION violating long unique under READ COMMITTED
--echo #
create table t1 (a int, f text unique, s datetime, e datetime, period for p(s,e)) engine=innodb;
insert into t1 values (1,'foo','1900-01-01','2000-01-01'),(2,'bar','1900-01-01','2000-01-01');
set transaction isolation level read committed;
--error ER_DUP_ENTRY
update t1 for portion of p from '1980-01-01' to '1980-01-02' set a = 1;
drop table t1;
create table t1 (a int, f text unique, s datetime, e datetime, period for p(s,e)) engine=innodb partition by hash (a);
insert into t1 values (1,'foo','1900-01-01','2000-01-01'),(2,'bar','1900-01-01','2000-01-01');
set transaction isolation level read committed;
--error ER_DUP_ENTRY
update t1 for portion of p from '1980-01-01' to '1980-01-02' set a = 1;
drop table t1;
--echo # End of 10.6 tests