set global default_storage_engine= innodb;
set default_storage_engine= innodb;
connect  con2, localhost, root,,;
connection default;
#
# Test insert
#
# Insert and add column
create or replace table t1 (a int);
insert t1 values (5);
connection con2;
set debug_sync= 'now WAIT_FOR ended';
connection default;
set debug_sync= 'alter_table_copy_end SIGNAL ended WAIT_FOR end';
alter table t1 add b int NULL, algorithm= copy, lock= none;
connection con2;
insert into t1 values (123), (456), (789);
set debug_sync= 'now SIGNAL end';
connection default;
affected rows: 4
info: Records: 4  Duplicates: 0  Warnings: 0
select * from t1;
a	b
5	NULL
123	NULL
456	NULL
789	NULL
# Insert, error
create or replace table t1 (a int);
insert t1 values (5), (5);
connection con2;
set debug_sync= 'now WAIT_FOR ended';
connection default;
set debug_sync= 'alter_table_copy_end SIGNAL ended WAIT_FOR end';
alter table t1 nowait add unique (a), algorithm= copy, lock= none;
connection con2;
start transaction;
insert into t1 values (123), (456), (789);
set debug_sync= 'now SIGNAL end';
connection default;
ERROR 23000: Duplicate entry '5' for key 'a'
connection con2;
commit;
connection default;
select variable_value into @otd from information_schema.session_status where variable_name='Opened_table_definitions';
select * from t1;
a
5
5
123
456
789
select variable_value-@otd from information_schema.session_status where variable_name='Opened_table_definitions';
variable_value-@otd
1
# long transaction and add column
create or replace table t1 (a int);
insert t1 values (5);
connection con2;
set debug_sync= 'now WAIT_FOR ended';
connection default;
set debug_sync= 'alter_table_copy_end SIGNAL ended WAIT_FOR end';
alter table t1 nowait add b int NULL, algorithm= copy, lock= none;
connection con2;
start transaction;
insert into t1 values (123), (456), (789);
set debug_sync= 'now SIGNAL end';
connection default;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
select * from t1;
a
5
connection con2;
rollback;
connection default;
# Insert and add NOT NULL column without default value
create or replace table t1 (a int);
insert t1 values (5);
connection con2;
set debug_sync= 'now WAIT_FOR ended';
connection default;
set debug_sync= 'alter_table_copy_end SIGNAL ended WAIT_FOR end';
alter table t1 add b int NOT NULL, algorithm= copy, lock= none;
connection con2;
insert into t1 values (123), (456), (789);
set debug_sync= 'now SIGNAL end';
connection default;
select * from t1;
a	b
5	0
123	0
456	0
789	0
# Insert and add a column with a default value
create or replace table t1 (a int);
insert t1 values (5);
connection con2;
set debug_sync= 'now WAIT_FOR ended';
connection default;
set debug_sync= 'alter_table_copy_end SIGNAL ended WAIT_FOR end';
alter table t1 add b int NOT NULL default (222), algorithm= copy, lock= none;
connection con2;
insert into t1 values (123), (456), (789);
set debug_sync= 'now SIGNAL end';
connection default;
select * from t1;
a	b
5	222
123	222
456	222
789	222
#
# Test update
#
# Update and add a column
create or replace table t1 (a int primary key, b int);
insert t1 values (1, 22);
insert t1 values (3, 44);
connection con2;
set debug_sync= 'now WAIT_FOR ended';
connection default;
set debug_sync= 'alter_table_copy_end SIGNAL ended WAIT_FOR end';
alter table t1 add c int default(1),
algorithm= copy, lock= none;
connection con2;
update t1 set b= 55 where a = 1;
set debug_sync= 'now SIGNAL end';
connection default;
affected rows: 2
info: Records: 2  Duplicates: 0  Warnings: 0
select * from t1;
a	b	c
1	55	1
3	44	1
# Update and add a column in the middle
create or replace table t1 (a int primary key, b int);
insert t1 values (1, 22);
insert t1 values (3, 44);
connection con2;
set debug_sync= 'now WAIT_FOR ended';
connection default;
set debug_sync= 'alter_table_copy_end SIGNAL ended WAIT_FOR end';
alter table t1 add c int default(1) after a,
algorithm= copy, lock= none;
connection con2;
update t1 set b= 55 where a = 1;
set debug_sync= 'now SIGNAL end';
connection default;
select * from t1;
a	c	b
1	1	55
3	1	44
#
# Test primary key change
#
# Drop key, add key
create or replace table t1 (a int primary key, b int);
insert t1 values (1, 22);
insert t1 values (3, 44);
connection con2;
set debug_sync= 'now WAIT_FOR ended';
connection default;
set debug_sync= 'alter_table_copy_end SIGNAL ended WAIT_FOR end';
alter table t1 drop primary key, add primary key(b),
algorithm= copy, lock= none;
connection con2;
update t1 set b= 55 where a = 1;
set debug_sync= 'now SIGNAL end';
connection default;
select * from t1;
a	b
3	44
1	55
# Drop key, add key. Two updates
create or replace table t1 (a int primary key, b int);
insert t1 values (1, 11);
insert t1 values (2, 22);
connection con2;
set debug_sync= 'now WAIT_FOR ended';
connection default;
set debug_sync= 'alter_table_copy_end SIGNAL ended WAIT_FOR end';
alter table t1 drop primary key, add primary key(b),
algorithm= copy, lock= none;
connection con2;
update t1 set b= 33 where a = 1;
update t1 set b= 44 where a = 2;
set debug_sync= 'now SIGNAL end';
connection default;
select * from t1;
a	b
1	33
2	44
#
# Various tests, see below
#
create or replace table t1 (a int primary key, b int);
insert t1 values (1, 11);
insert t1 values (2, 22);
insert t1 values (3, 33);
insert t1 values (4, 44);
insert t1 values (5, 55);
insert t1 values (6, 66);
insert t1 values (7, 77);
insert t1 values (8, 88);
insert t1 values (9, 99);
connection con2;
set debug_sync= 'now WAIT_FOR ended';
connection default;
set debug_sync= 'alter_table_copy_end SIGNAL ended WAIT_FOR end';
alter table t1 drop primary key, add primary key(b),
algorithm= copy, lock= none;
connection con2;
# Two updates
update t1 set b= 1001 where a = 1;
update t1 set b= 2002 where a = 2;
# Two updates in transaction
set autocommit = 0;
start transaction;
update t1 set b= 3003 where a = 3;
update t1 set b= 4004 where a = 4;
commit;
set autocommit = 1;
# Second update is rolled back
update t1 set b= 5005 where a = 5;
set autocommit = 0;
start transaction;
update t1 set b= 6006 where a = 6;
rollback;
set autocommit = 1;
# Second execution in transaction fails
set autocommit = 0;
start transaction;
update t1 set b= 7007 where a = 7;
update t1 set a= 8, b= 8008 where a = 8 or a = 9 order by a;
ERROR 23000: Duplicate entry '8' for key 'PRIMARY'
commit;
set autocommit = 1;
select * from t1;
a	b
1	1001
2	2002
3	3003
4	4004
5	5005
6	66
7	7007
8	88
9	99
set debug_sync= 'now SIGNAL end';
connection default;
select * from t1;
a	b
1	1001
2	2002
3	3003
4	4004
5	5005
6	66
7	7007
8	88
9	99
#
# MYISAM. Only Inserts can be tested.
# (everything else is a table lock disallowing concurrent reads)
#
create or replace table t1 (a int) engine=myisam;
insert t1 values (5);
connection con2;
set debug_sync= 'now WAIT_FOR ended';
connection default;
set debug_sync= 'alter_table_copy_end SIGNAL ended WAIT_FOR end';
alter table t1 add b int NULL, algorithm= copy, lock= none;
connection con2;
insert into t1 values (123), (456), (789);
set debug_sync= 'now SIGNAL end';
connection default;
select * from t1;
a	b
5	NULL
123	NULL
456	NULL
789	NULL
# MYISAM + error
create or replace table t1 (a int primary key) engine=myisam;
insert t1 values (5);
connection con2;
set debug_sync= 'now WAIT_FOR ended';
connection default;
set debug_sync= 'alter_table_copy_end SIGNAL ended WAIT_FOR end';
alter table t1 add b int NULL, algorithm= copy, lock= none;
connection con2;
insert into t1 values (1),(2),(3),(4),(5),(6);
Got one of the listed errors
select * from t1;
a
1
2
3
4
5
set debug_sync= 'now SIGNAL end';
connection default;
select * from t1;
a	b
5	NULL
1	NULL
2	NULL
3	NULL
4	NULL
# Aria + error
set @@binlog_format=row;
create or replace table t1 (a int primary key) engine=aria;
insert t1 values (5);
connection con2;
set debug_sync= 'now WAIT_FOR ended';
connection default;
set debug_sync= 'alter_table_copy_end SIGNAL ended WAIT_FOR end';
alter table t1 add b int NULL, algorithm= copy, lock= none;
connection con2;
insert into t1 values (1),(2),(3),(4),(5),(6);
ERROR 23000: Duplicate entry '5' for key 'PRIMARY'
select * from t1;
a
1
2
3
4
5
set debug_sync= 'now SIGNAL end';
connection default;
select * from t1;
a	b
5	NULL
1	NULL
2	NULL
3	NULL
4	NULL
set @@binlog_format=default;
# Test incompatible changes
create or replace table t1 (a int primary key, b int);
insert t1 values (1, 22);
insert t1 values (3, 44);
connection con2;
set debug_sync= 'now WAIT_FOR ended';
connection default;
set debug_sync= 'alter_table_copy_end SIGNAL ended WAIT_FOR end';
alter table t1 drop primary key, add primary key(b),
algorithm= copy, lock= none;
connection con2;
update t1 set b= 44 where a = 1;
set debug_sync= 'now SIGNAL end';
connection default;
ERROR 23000: Duplicate entry '44' for key 'PRIMARY'
select * from t1;
a	b
1	44
3	44
# Test log read after EXCLUSIVE lock
# Transaction is started before ALTER, and UPDATE is made.
# Then more UPDATEs.
create or replace table t1 (a int primary key, b int);
insert t1 values (1, 11);
insert t1 values (2, 22);
insert t1 values (3, 33);
insert t1 values (4, 44);
insert t1 values (5, 55);
set debug_sync= 'alter_table_online_before_lock SIGNAL locking WAIT_FOR end';
set debug_sync= 'alter_table_online_downgraded SIGNAL downgraded';
alter table t1 drop primary key, add primary key(b),
algorithm= copy, lock= none;
connection con2;
begin;
set debug_sync= 'now WAIT_FOR downgraded';
update t1 set b= 111 where a = 1;
set debug_sync= 'now WAIT_FOR locking';
set debug_sync= 'now SIGNAL end';
update t1 set b= 222 where a = 2;
update t1 set b= 333 where a = 3;
update t1 set b= 444 where a = 4;
commit;
update t1 set b= 555 where a = 5;
connection default;
select * from t1;
a	b
1	111
2	222
3	333
4	444
5	555
#
# Test progress report.
#
create or replace table t1 (a int primary key, b int);
insert t1 values (1, 11);
insert t1 values (2, 22);
insert t1 values (3, 33);
insert t1 values (4, 44);
set debug_sync= 'alter_table_online_before_lock SIGNAL locking WAIT_FOR end';
set debug_sync= 'alter_table_online_downgraded SIGNAL downgraded'
                                             ' WAIT_FOR start_replication';
set debug_sync= 'alter_table_online_progress SIGNAL applied WAIT_FOR proceed'
                                           ' EXECUTE 9';
alter table t1 drop primary key, add primary key(b),
algorithm= copy, lock= none;
connection con2;
set debug_sync= 'now WAIT_FOR downgraded';
update t1 set b= 111 where a = 1;
insert t1 values (5, 55);
update t1 set b= 555 where a = 5;
insert t1 values (6, 66);
update t1 set b= 666 where a = 6;
set debug_sync= 'now SIGNAL start_replication';
# First signal is for log description event.
set debug_sync= 'now WAIT_FOR applied';
select stage, progress, examined_rows  from INFORMATION_SCHEMA.PROCESSLIST where id = @con;
stage	progress	examined_rows
3	53.390	0
set debug_sync= 'now SIGNAL proceed WAIT_FOR applied';
select stage, progress, examined_rows from INFORMATION_SCHEMA.PROCESSLIST where id = @con;
stage	progress	examined_rows
3	63.559	1
set debug_sync= 'now SIGNAL proceed WAIT_FOR applied';
select stage, progress, examined_rows from INFORMATION_SCHEMA.PROCESSLIST where id = @con;
stage	progress	examined_rows
3	71.610	2
set debug_sync= 'now SIGNAL proceed WAIT_FOR applied';
select stage, progress, examined_rows from INFORMATION_SCHEMA.PROCESSLIST where id = @con;
stage	progress	examined_rows
3	81.780	3
set debug_sync= 'now SIGNAL proceed WAIT_FOR applied';
select stage, progress, examined_rows from INFORMATION_SCHEMA.PROCESSLIST where id = @con;
stage	progress	examined_rows
3	89.831	4
set debug_sync= 'now SIGNAL proceed WAIT_FOR applied';
select stage, progress, examined_rows from INFORMATION_SCHEMA.PROCESSLIST where id = @con;
stage	progress	examined_rows
3	100.000	5
set debug_sync= 'now SIGNAL proceed WAIT_FOR locking';
begin;
update t1 set b= 222 where a = 2;
update t1 set b= 333 where a = 3;
update t1 set b= 444 where a = 4;
commit;
set debug_sync= 'now SIGNAL end WAIT_FOR applied';
select stage, progress, examined_rows from INFORMATION_SCHEMA.PROCESSLIST where id = @con;
stage	progress	examined_rows
4	33.333	6
set debug_sync= 'now SIGNAL proceed WAIT_FOR applied';
select stage, progress, examined_rows from INFORMATION_SCHEMA.PROCESSLIST where id = @con;
stage	progress	examined_rows
4	66.667	7
set debug_sync= 'now SIGNAL proceed WAIT_FOR applied';
select stage, progress, examined_rows from INFORMATION_SCHEMA.PROCESSLIST where id = @con;
stage	progress	examined_rows
4	100.000	8
set debug_sync= 'now SIGNAL proceed';
connection default;
select * from t1;
a	b
1	111
2	222
3	333
4	444
5	555
6	666
#
# Test system versioning
#
create or replace table t1 (a int primary key, b int);
insert t1 values (1, 22);
insert t1 values (3, 44);
connection con2;
set debug_sync= 'now WAIT_FOR ended';
connection default;
set debug_sync= 'alter_table_copy_end SIGNAL ended WAIT_FOR end';
set timestamp = 1;
alter table t1 add system versioning,
algorithm= copy, lock= none;
connection con2;
set timestamp = 2;
update t1 set b= 55 where a = 1;
set timestamp = 3;
insert into t1 values (6, 77);
set debug_sync= 'now SIGNAL end';
connection default;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) NOT NULL,
  `b` int(11) DEFAULT NULL,
  PRIMARY KEY (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci WITH SYSTEM VERSIONING
select *, UNIX_TIMESTAMP(row_start), UNIX_TIMESTAMP(row_end) from t1 for system_time all;
a	b	UNIX_TIMESTAMP(row_start)	UNIX_TIMESTAMP(row_end)
1	55	1.000000	2147483647.999999
3	44	1.000000	2147483647.999999
6	77	1.000000	2147483647.999999
alter table t1 drop system versioning, algorithm= copy, lock= none;
ERROR 0A000: LOCK=NONE is not supported. Reason: DROP SYSTEM VERSIONING. Try LOCK=SHARED
drop table t1;
#
# Test ROLLBACK TO SAVEPOINT
#
create or replace table t1 (a int);
insert t1 values (1), (2);
create or replace table t2 (a int);
insert t2 values (1), (2);
connection con2;
begin;
update t2 set a= 222 where a = 2;
savepoint savie;
update t2 set a= 111 where a = 1;
set debug_sync= 'now WAIT_FOR ended';
connection default;
set debug_sync= 'alter_table_copy_end SIGNAL ended WAIT_FOR end';
alter table t1 add b int NULL, algorithm= copy, lock= none;
connection con2;
update t1 set a= 123 where a = 1;
savepoint whoopsie;
rollback to savepoint savie;
commit;
set debug_sync= 'now SIGNAL end';
connection default;
select * from t1;
a	b
1	NULL
2	NULL
select * from t2;
a
1
222
create or replace table t1 (a int);
insert t1 values (1), (2);
create or replace table t2 (a int);
insert t2 values (1), (2);
create or replace table t3 (a int) engine=myisam;
insert t3 values (1);
connection con2;
begin;
update t2 set a= 222 where a = 2;
savepoint savie;
update t2 set a= 111 where a = 1;
set debug_sync= 'now WAIT_FOR ended';
connection default;
set debug_sync= 'alter_table_copy_end SIGNAL ended WAIT_FOR end';
alter table t1 add b int NULL, algorithm= copy, lock= none;
connection con2;
update t1 set a= 222 where a = 2;
savepoint whoopsie;
update t1 set a= 123 where a = 1;
insert t3 values (2);
select * from t1;
a
123
222
rollback to savepoint whoopsie;
Warnings:
Warning	1196	Some non-transactional changed tables couldn't be rolled back
select * from t1;
a
1
222
select * from t3;
a
1
2
commit;
set debug_sync= 'now SIGNAL end';
connection default;
select * from t1;
a	b
1	NULL
222	NULL
select * from t2;
a
111
222
select * from t3;
a
1
2
# Cleanup
set debug_sync= 'reset';
drop table t1;
drop table t2;
drop table t3;
create table t1 (a char(6), b int);
insert t1 values ('abcde1',1),('abcde2',2);
set debug_sync= 'now wait_for downgraded';
connection con2;
set sql_mode='';
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
alter table t1 modify a char(4), algorithm=copy, lock=none;
connection default;
update t1 set b=b+10 where a='abcde2';
select * from t1;
a	b
abcde1	1
abcde2	12
set debug_sync= 'now signal goforit';
connection con2;
Warnings:
Warning	1265	Data truncated for column 'a' at row 1
Warning	1265	Data truncated for column 'a' at row 2
Warning	1265	Data truncated for column 'a' at row 3
set sql_mode=default;
connection default;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` char(4) DEFAULT NULL,
  `b` int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
select * from t1;
a	b
abcd	1
abcd	12
drop table t1;
set debug_sync= 'reset';
#
# MDEV-28930 ALTER TABLE Deadlocks with parallel TL_WRITE
#
create table t1(a int) engine=myisam select 1;
set debug_sync='alter_table_online_before_lock SIGNAL ready WAIT_FOR go_for_locking';
alter table t1 force;
connection con2;
set debug_sync='now WAIT_FOR ready';
set debug_sync='thr_multi_lock_before_thr_lock SIGNAL go_for_locking';
update t1 set a=2;
connection default;
set debug_sync='alter_table_online_before_lock SIGNAL ready WAIT_FOR go_for_locking';
alter table mysql.global_priv force;
connection con2;
set debug_sync='now WAIT_FOR ready';
set debug_sync='thr_multi_lock_before_thr_lock SIGNAL go_for_locking';
create user user1@localhost;
connection default;
set debug_sync=reset;
drop user user1@localhost;
drop table t1;
#
# MDEV-28959 Online alter ignores strict table mode
#
create table t1 (a int);
insert into t1 values (1),(2),(3);
set debug_sync= 'now wait_for downgraded';
connection con2;
set sql_mode='STRICT_TRANS_TABLES,STRICT_ALL_TABLES';
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
alter table t1 modify a int not null, algorithm=copy, lock=none;
connection default;
insert into t1 values (null),(null);
set debug_sync= 'now signal goforit';
connection con2;
ERROR 01000: Data truncated for column 'a' at row 4
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
select * from t1;
a
1
2
3
NULL
NULL
set sql_mode=default;
connection default;
drop table t1;
set debug_sync= reset;
#
# MDEV-28967 Assertion `marked_for_write_or_computed()' failed in Field_new_decimal::store_value / online_alter_read_from_binlog`
#
create  table t1 (a decimal(8,2), b varchar(8));
insert into t1 (b) values ('x');
set debug_sync= 'now wait_for downgraded';
connection con2;
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
alter table t1 force, algorithm=copy, lock=none;
connection default;
insert t1 (b) values ('k');
insert t1 (b) values ('m');
set debug_sync= 'now signal goforit';
connection con2;
connection default;
drop table t1;
set debug_sync= reset;
#
# MDEV-29021 ALTER TABLE fails when a stored virtual column is dropped and added
#
create table t1 (a char(9), b char(9) as (a) stored);
insert into t1(a) values ('foobar');
set debug_sync= 'now wait_for downgraded';
connection con2;
set sql_mode='';
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
alter table t1 drop b, add b char(3) as (a) stored, algorithm=copy, lock=none;
connection default;
update t1 set a = 'foobarqux';
set debug_sync= 'now signal goforit';
connection con2;
Warnings:
Warning	1265	Data truncated for column 'b' at row 1
Warning	1265	Data truncated for column 'b' at row 2
set sql_mode=default;
connection default;
drop table t1;
set debug_sync= reset;
# (duplicate) MDEV-29007 Assertion `marked_for_write_or_computed()'
# failed upon online ADD COLUMN .. FIRST
create table t (a int);
insert into t values (1),(2);
set debug_sync= 'now wait_for downgraded';
connection con2;
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
alter table t add c int first, algorithm=copy, lock=none;
connection default;
insert into t values (3);
set debug_sync= 'now signal goforit';
connection con2;
connection default;
drop table t;
set debug_sync= reset;
# UNIQUE blob duplicates are not ignored.
create table t1 (b blob);
insert into t1 values ('foo'),('bar');
set debug_sync= 'now wait_for downgraded';
connection con2;
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
alter table t1 add unique(b), algorithm=copy, lock=none;
connection default;
insert into t1 values ('qux'),('foo');
set debug_sync= 'now signal goforit';
connection con2;
ERROR 23000: Duplicate entry 'foo' for key 'b'
select * from t1;
b
foo
bar
qux
foo
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `b` blob DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
connection default;
drop table t1;
set debug_sync= reset;
#
# DELETE with added virtual column
#
CREATE TABLE t1 (a CHAR(3), b CHAR(3) AS (a));
INSERT INTO t1 (a) VALUES ('foo'),('bar');
set debug_sync= 'now wait_for downgraded';
connection con2;
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
ALTER TABLE t1 ADD c INT, ALGORITHM=COPY, LOCK=NONE;
connection default;
DELETE FROM t1;
set debug_sync= 'now signal goforit';
connection con2;
select * from t1;
a	b	c
connection default;
DROP TABLE t1;
set debug_sync= reset;
#
# Do not ignore sql_mode when replicating
#
create table t1 (a int);
insert into t1 values (1);
set debug_sync= 'now wait_for downgraded';
connection con2;
set sql_mode='STRICT_ALL_TABLES,ERROR_FOR_DIVISION_BY_ZERO';
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
alter table t1 add b int as (1/a) stored, algorithm=copy, lock=none;
connection default;
update t1 set a= 0 where a=1;
set debug_sync= 'now signal goforit';
connection con2;
ERROR 22012: Division by 0
set sql_mode= default;
connection default;
drop table t1;
set debug_sync= reset;
#
# MDEV-29067 Online alter ignores check constraint violation
#
## CHECK, INSERT
create table t1 (a int);
insert t1 values (1),(2);
set debug_sync= 'now wait_for downgraded';
connection con2;
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
alter table t1 add check (a<10), algorithm=copy, lock=none;
connection default;
insert t1 values (11),(12);
set debug_sync= 'now signal goforit';
connection con2;
ERROR 23000: CONSTRAINT `CONSTRAINT_1` failed for `test`.`t1`
connection default;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
select * from t1;
a
1
2
11
12
drop table t1;
## DEFAULT, INSERT
create table t1 (a int);
insert t1 values (1),(2);
set debug_sync= 'now wait_for downgraded';
connection con2;
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
alter table t1 add b int default(a+10), algorithm=copy, lock=none;
connection default;
insert t1 values (11),(12);
set debug_sync= 'now signal goforit';
connection con2;
connection default;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL,
  `b` int(11) DEFAULT (`a` + 10)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
select * from t1;
a	b
1	11
2	12
11	21
12	22
drop table t1;
set debug_sync= 'reset';
## CHECK, UPDATE
create table t1 (a int);
insert t1 values (1),(2),(3),(4);
set debug_sync= 'now wait_for downgraded';
connection con2;
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
alter table t1 add check (a<10), algorithm=copy, lock=none;
connection default;
update t1 set a=a+10 where a > 2;
set debug_sync= 'now signal goforit';
connection con2;
ERROR 23000: CONSTRAINT `CONSTRAINT_1` failed for `test`.`t1`
connection default;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
select * from t1;
a
1
2
13
14
drop table t1;
## DEFAULT, UPDATE
create table t1 (a int);
insert t1 values (1),(2),(3),(4);
set debug_sync= 'now wait_for downgraded';
connection con2;
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
alter table t1 add b int default(a), algorithm=copy, lock=none;
connection default;
update t1 set a=a+10 where a > 2;
insert t1 values(5);
update t1 set a=a+10 where a = 5;
set debug_sync= 'now signal goforit';
connection con2;
connection default;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL,
  `b` int(11) DEFAULT `a`
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
select * from t1;
a	b
1	1
2	2
13	13
14	14
15	15
drop table t1;
set debug_sync= 'reset';
## VCOL + CHECK
create table t1 (a int);
insert t1 values (1),(2),(3),(4);
set debug_sync= 'now wait_for downgraded';
connection con2;
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
alter table t1 add b int as (a), add check(b=a), algorithm=copy, lock=none;
connection default;
update t1 set a=a+10 where a > 2;
insert t1 values(5);
update t1 set a=a+10 where a = 5;
set debug_sync= 'now signal goforit';
connection con2;
connection default;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL,
  `b` int(11) GENERATED ALWAYS AS (`a`) VIRTUAL,
  CONSTRAINT `CONSTRAINT_1` CHECK (`b` = `a`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
select * from t1;
a	b
1	1
2	2
13	13
14	14
15	15
drop table t1;
set debug_sync= 'reset';
#
# MDEV-29013 ER_KEY_NOT_FOUND/lock timeout upon online alter
# with long unique indexes
#
create table t1 (b text not null, unique(b));
insert into t1 values ('foo'),('bar');
set debug_sync= 'now wait_for downgraded';
connection con2;
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
alter table t1 add c int, algorithm=copy, lock=none;
connection default;
delete from t1;
set debug_sync= 'now signal goforit';
connection con2;
connection default;
drop table t1;
set debug_sync= reset;
###
create table t1 (a text, unique(a));
create table t2 (b text, unique(b));
insert into t2 values (null),(null);
set debug_sync= 'now wait_for downgraded';
connection con2;
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
alter table t2 add column c int, algorithm=copy, lock=none;
connection default;
delete from t2;
set debug_sync= 'now signal goforit';
connection con2;
connection default;
alter table t2 force;
alter table t1 force;
drop table t1, t2;
set debug_sync= reset;
#
# MDEV-29038 XA assertions failing in binlog_rollback and binlog_commit
#
create table t (a int);
insert into t values (1);
xa begin 'xid';
set debug_sync= 'now wait_for downgraded';
connect  con1,localhost,root,,test;
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
alter table t force, algorithm=copy, lock=none;
connection default;
insert into t values (2);
set debug_sync= 'now signal goforit';
xa end 'xid';
xa rollback 'xid';
xa begin 'xid';
connection con1;
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
alter table t force, algorithm=copy, lock=none;
connection default;
set debug_sync= 'now wait_for downgraded';
insert into t values (3);
set debug_sync= 'now signal goforit';
xa end 'xid';
xa commit 'xid' one phase;
connection con1;
connection default;
drop table t;
set debug_sync= reset;
#
# MDEV-29069 ER_KEY_NOT_FOUND upon online autoinc addition and
# concurrent DELETE
#
set @old_dbug=@@debug_dbug;
set debug_dbug="+d,rpl_report_chosen_key";
#
# Add clumsy DEFAULT
#
create or replace table t (a int);
insert into t values (10),(20),(30);
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
alter table t add b int default(RAND() * 20), add key(b),
algorithm=copy, lock=none;
connection con2;
set debug_sync= 'now wait_for downgraded';
delete from t where a = 20;
update t set a = a + 1 where a = 10;
set debug_sync= 'now signal goforit';
connection default;
Warnings:
Note	1105	Key chosen: -1
Note	1105	Key chosen: -1
select a from t;
a
11
30
# CURRENT_TIMESTAMP
create or replace table t (a int);
insert into t values (10),(20),(30);
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
alter table t add b timestamp default CURRENT_TIMESTAMP, add key(b),
algorithm=copy, lock=none;
connection con2;
set debug_sync= 'now wait_for downgraded';
delete from t where a = 20;
update t set a = a + 1 where a = 10;
set debug_sync= 'now signal goforit';
connection default;
Warnings:
Note	1105	Key chosen: -1
Note	1105	Key chosen: -1
select a from t;
a
11
30
# CURRENT_TIMESTAMP, mixed key
create or replace table t (a int);
insert into t values (10),(20),(30);
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
alter table t add b timestamp default CURRENT_TIMESTAMP, add key(a, b),
algorithm=copy, lock=none;
connection con2;
set debug_sync= 'now wait_for downgraded';
delete from t where a = 20;
update t set a = a + 1 where a = 10;
set debug_sync= 'now signal goforit';
connection default;
Warnings:
Note	1105	Key chosen: 0
Note	1105	Key chosen: 0
select a from t;
a
11
30
# Mixed primary key
create or replace table t (a int);
insert into t values (10),(20),(30);
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
alter table t add b int default (a+1), add primary key(b, a),
algorithm=copy, lock=none;
connection con2;
set debug_sync= 'now wait_for downgraded';
delete from t where a = 20;
update t set a = a + 1 where a = 10;
set debug_sync= 'now signal goforit';
connection default;
Warnings:
Note	1105	Key chosen: 0
Note	1105	Key chosen: 0
select a from t;
a
11
30
#
# Normal row, could be used as a key
#
create or replace table t (a int);
insert into t values (10),(20),(30);
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
alter table t add b int as (a * 10) unique, algorithm=copy, lock=none;
connection con2;
set debug_sync= 'now wait_for downgraded';
delete from t where a = 20;
update t set a = a + 1 where a = 10;
set debug_sync= 'now signal goforit';
connection default;
Warnings:
Note	1105	Key chosen: 0
Note	1105	Key chosen: 0
#
# Add key for old row
#
create or replace table t (a int);
insert into t values (10),(20),(30);
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
alter table t add unique(a), algorithm=copy, lock=none;
connection con2;
set debug_sync= 'now wait_for downgraded';
delete from t where a = 20;
update t set a = a + 1 where a = 10;
set debug_sync= 'now signal goforit';
connection default;
Warnings:
Note	1105	Key chosen: 0
Note	1105	Key chosen: 0
#
# Useful UNIQUE, though a virtual column on another extra field
#
create or replace table t (a int primary key, b int default (a+1));
insert into t values (10, 10),(20, 20),(30, 30);
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
alter table t drop primary key, add c int default(a),
add d int as (c) stored unique, algorithm=copy, lock=none;
connection con2;
set debug_sync= 'now wait_for downgraded';
delete from t where a = 20;
update t set a = a + 2 where a = 10;
set debug_sync= 'now signal goforit';
connection default;
Warnings:
Note	1105	Key chosen: 0
Note	1105	Key chosen: 0
select * from t;
a	b	c	d
12	10	12	12
30	30	30	30
#
# Now this index is not usable (missing DEFAULT on field c)
#
create or replace table t (a int primary key, b int);
insert into t values (10, 10),(20, 20),(30, 30);
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
alter table t drop primary key, add c real default(rand(a)),
add d real as (c) stored unique, algorithm=copy, lock=none;
connection con2;
set debug_sync= 'now wait_for downgraded';
delete from t where a = 20;
update t set a = a + 2 where a = 10;
set debug_sync= 'now signal goforit';
connection default;
Warnings:
Note	1105	Key chosen: -1
Note	1105	Key chosen: -1
select a, b from t;
a	b
12	10
30	30
drop table t;
set debug_sync= reset;
set debug_dbug= @old_dbug;
connection default;
#
# MDEV-30902 Server crash in LEX::first_lists_tables_same
#
create table t1 engine=myisam select 1 as x ;
create procedure p() alter table t1 engine=heap;
set debug_sync= 'alter_table_copy_end signal ended wait_for end';
call p;
connection con1;
set debug_sync= 'now wait_for ended';
insert into t1 values (2);
set debug_sync= 'now signal end';
connection default;
call p;
drop table t1;
drop procedure p;
set debug_sync=reset;
#
# MDEV-30902 Server crash in LEX::first_lists_tables_same
#
create table t (id int, s date, e date, period for p(s,e),
unique(id, p without overlaps)) engine=aria;
insert into t values (1,'1971-01-01','1971-01-02');
set debug_sync= 'alter_table_online_before_lock signal lock wait_for goon';
alter table t force;
connection con1;
set debug_sync= 'now wait_for lock';
delete from t;
set debug_sync= 'now signal goon';
connection default;
drop table t;
#
# MDEV-30924 Server crashes in MYSQL_LOG::is_open upon ALTER vs FUNCTION
#
create table t (a int);
insert into t values (1),(2);
create function f () returns int
begin
update t set a = 10;
return 0;
end $
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goon';
alter table t force, algorithm=copy;
connection con1;
set debug_sync= 'now wait_for downgraded';
select f();
f()
0
set debug_sync= 'now signal goon';
connection default;
drop table t;
drop function f;
# Partitioning
create or replace table t1 (a serial);
insert t1 values (5), (6), (7);
set debug_sync= 'alter_table_online_downgraded SIGNAL downgraded wait_for goon';
alter table t1 ENGINE=InnoDB, ALGORITHM=COPY, LOCK=NONE
PARTITION BY HASH(a) PARTITIONS 5;
connection con1;
set debug_sync= 'now WAIT_FOR downgraded';
insert into t1 values (123), (456), (789);
update t1 set a= a+100;
set debug_sync= 'now SIGNAL goon';
connection default;
select * from t1;
a
105
106
556
107
223
889
drop table t1;
#
# MDEV-31033 ER_KEY_NOT_FOUND upon online COPY ALTER on a partitioned
# table
create table t (a int) partition by hash(a) partitions 2;
insert into t values (1),(3);
set debug_sync= 'alter_table_online_downgraded SIGNAL downgraded wait_for goon';
alter table t force, algorithm=copy, lock=none;
connection con1;
set debug_sync= 'now WAIT_FOR downgraded';
update t set a = a + 1;
insert t values (1),(2);
delete from t where a = 4 limit 1;
set debug_sync= 'now SIGNAL goon';
connection default;
select * from t;
a
2
2
1
drop table t;
#
# MDEV-31043 ER_KEY_NOT_FOUND upon concurrent ALTER and transaction
#
create table t (a int, b int) engine=myisam;
insert into t values (1,10),(2,20);
set debug_sync= 'alter_table_online_before_lock signal burnit wait_for goforit';
alter table t add c int, algorithm=copy, lock=none;
connection con1;
set debug_sync= 'now wait_for burnit';
update t set b = 100;
start transaction;
update t set b = 200;
connection con2;
delete from t order by a limit 1;
delete from t order by a limit 1;
select * from t;
a	b
connection con1;
commit;
set debug_sync= 'now signal goforit';
connection default;
select * from t;
a	b	c
drop table t;
create table t (a int, b int) engine=aria;
insert into t values (1,10),(2,20);
set debug_sync= 'alter_table_online_before_lock signal burnit wait_for goforit';
alter table t add c int, algorithm=copy, lock=none;
connection con1;
set debug_sync= 'now wait_for burnit';
update t set b = 100;
start transaction;
update t set b = 200;
connection con2;
delete from t order by a limit 1;
delete from t order by a limit 1;
select * from t;
a	b
connection con1;
commit;
set debug_sync= 'now signal goforit';
connection default;
select * from t;
a	b	c
drop table t;
#
# MDEV-30949 Direct leak in binlog_online_alter_end_trans
#
create table t (f longblob default null) engine=myisam;
insert into t values (null);
set debug_sync= "alter_table_copy_end signal copy wait_for goon";
set debug_sync= "alter_table_online_before_lock signal lock wait_for end";
alter table t force, algorithm=copy;
connection con1;
set debug_sync= "now wait_for copy";
insert into t select repeat('a',130000);
set debug_sync= "now signal goon wait_for lock";
insert into t select repeat('a',130000);
set debug_sync= "now signal end";
connection default;
drop table t;
#
# Test that correct fields are marked as explicit:
# Drop a, reorder b, add new column with default.
#
create table t (a int primary key, b int);
insert into t values (1, 1), (2, 2), (3, 3);
set debug_sync= "alter_table_copy_end signal copy wait_for goon";
alter table t drop primary key, drop a,
change b c bigint,
add x longblob default 123456;
connection con1;
set debug_sync= "now wait_for copy";
update t set b = 5 where a = 1;
update t set b = NULL where a = 1;
select * from t;
a	b
1	NULL
2	2
3	3
update t set a = 100 where a = 1;
update t set b = -10 where a = 100;
select * from t;
a	b
2	2
3	3
100	-10
set debug_sync= "now signal goon";
connection default;
select * from t;
c	x
-10	123456
2	123456
3	123456
drop table t;
# Test that all the fields are unpacked.
create table t (a int, b int);
insert into t values (NULL, 123), (NULL, 456);
set debug_sync= "alter_table_copy_end signal copy wait_for goon";
alter table t drop a, add primary key(b), algorithm=copy;
connection con1;
set debug_sync= "now wait_for copy";
update t set b = b + 100;
set debug_sync= "now signal goon";
connection default;
select * from t;
b
223
556
drop table t;
set debug_sync= reset;
NOT FOUND /Slave SQL/ in mysqld.1.err
#
# MDEV-31646 Online alter applies binlog cache limit to cache writes
#
create table t (pk int primary key, a varchar(100)) engine=MyISAM;
insert into t select seq, repeat('x', 100) from seq_1_to_500;
set @cache.size= @@max_binlog_cache_size;
set global max_binlog_cache_size= 4096;
set debug_sync= 'now wait_for do_updates';
connection con1;
set debug_sync= 'alter_table_online_progress signal do_updates wait_for go';
alter table t add b int, algorithm=copy, lock=none;
connection default;
update t set a = repeat('y', 100);
show warnings;
Level	Code	Message
set debug_sync= 'now signal go';
connection con1;
show warnings;
Level	Code	Message
connection default;
drop table t;
set debug_sync= reset;
set global max_binlog_cache_size= @cache.size;
# Now make sure that smaller limits will be processed fine
set @old_dbug=@@debug_dbug;
create table t (pk int primary key, a text) engine=MyISAM;
insert into t select seq, repeat('x', 1000) from seq_1_to_50;
connection con1;
set debug_sync= 'alter_table_online_progress signal do_updates wait_for go';
alter table t add b int, algorithm=copy, lock=none;
connection default;
set debug_sync= 'now wait_for do_updates';
set debug_dbug="+d,online_alter_small_cache";
update t set a = repeat('y', 1000);
ERROR HY000: Multi-row statements required more than 'max_binlog_stmt_cache_size' bytes of storage.
show warnings;
Level	Code	Message
Error	1705	Multi-row statements required more than 'max_binlog_stmt_cache_size' bytes of storage.
Error	1534	Writing one row to the row-based binary log failed
Warning	1196	Some non-transactional changed tables couldn't be rolled back
set debug_sync= 'now signal go';
connection con1;
show warnings;
Level	Code	Message
connection default;
drop table t;
set debug_sync= reset;
set debug_dbug= @old_dbug;
create table t (id int, a int, b text, primary key (id));
insert into t values (1,10,''),(2,20,'');
set debug_sync= 'alter_table_online_progress signal do_update wait_for go';
alter table t force, algorithm=copy, lock=none;
connection con1;
set @old_binlog_row_image= @@binlog_row_image;
set binlog_row_image= noblob;
set debug_sync= 'now wait_for do_update';
update t set a = 1;
delete from t where id = 1;
set debug_sync= 'now signal go';
set binlog_row_image= @old_binlog_row_image;
connection default;
select * from t;
id	a	b
2	1	
drop table t;
set debug_sync= reset;
#
# MDEV-31812 Add switch to old_mode to disable non-locking ALTER
#
set @old_old_mode= @@old_mode;
create or replace table t1 (a int primary key, b int);
set debug_sync= 'alter_table_copy_end SIGNAL copy_end WAIT_FOR proceed';
alter table t1 drop primary key, add primary key(b), algorithm= copy;
connection con2;
set debug_sync= 'now WAIT_FOR copy_end';
select if(max_stage = 4, "online", "old") as mode
from information_schema.processlist where id = @con;
mode
online
set debug_sync= 'now SIGNAL proceed';
connection default;
set old_mode= LOCK_ALTER_TABLE_COPY;
Warnings:
Warning	1287	'LOCK_ALTER_TABLE_COPY' is deprecated and will be removed in a future release
set debug_sync= 'alter_table_copy_end SIGNAL copy_end WAIT_FOR proceed';
alter table t1 drop primary key, add primary key(b), algorithm= copy;
connection con2;
set debug_sync= 'now WAIT_FOR copy_end';
select if(max_stage = 4, "online", "old") as mode
from information_schema.processlist where id = @con;
mode
old
set debug_sync= 'now SIGNAL proceed';
connection default;
set debug_sync= 'alter_table_copy_end SIGNAL copy_end WAIT_FOR proceed';
alter table t1 drop primary key, add primary key(b),
algorithm= copy, lock=none;
connection con2;
set debug_sync= 'now WAIT_FOR copy_end';
select if(max_stage = 4, "online", "old") as mode
from information_schema.processlist where id = @con;
mode
online
set debug_sync= 'now SIGNAL proceed';
connection default;
set old_mode= @old_old_mode;
drop table t1;
set debug_sync= reset;
#
# MDEV-32100 Online ALTER TABLE ends with 1032 under some isolation levels
#
create table iso_levels(id int, level text);
INSERT iso_levels VALUES (0, "READ UNCOMMITTED"),
(1, "READ COMMITTED"),
(2, "REPEATABLE READ"),
(3, "SERIALIZABLE");
create table t1 (a int, b int, key(b));
connection con2;
insert into t1 values (1,1),(null,null),(3,3),(4,null),(null,5);
connection default;
set session transaction isolation level SERIALIZABLE;
set debug_sync= "alter_table_online_downgraded signal downgraded wait_for goalters";
alter table t1 force, algorithm=copy;
connection con2;
set debug_sync= "now wait_for downgraded";
delete from t1 where b is null;
set debug_sync= "now signal goalters";
connection default;
drop table t1;
create table t1 (a int, b int, key(b));
connection con2;
insert into t1 values (1,1),(null,null),(3,3),(4,null),(null,5);
connection default;
set session transaction isolation level REPEATABLE READ;
set debug_sync= "alter_table_online_downgraded signal downgraded wait_for goalters";
alter table t1 force, algorithm=copy;
connection con2;
set debug_sync= "now wait_for downgraded";
delete from t1 where b is null;
set debug_sync= "now signal goalters";
connection default;
drop table t1;
create table t1 (a int, b int, key(b));
connection con2;
insert into t1 values (1,1),(null,null),(3,3),(4,null),(null,5);
connection default;
set session transaction isolation level READ COMMITTED;
set debug_sync= "alter_table_online_downgraded signal downgraded wait_for goalters";
alter table t1 force, algorithm=copy;
connection con2;
set debug_sync= "now wait_for downgraded";
delete from t1 where b is null;
set debug_sync= "now signal goalters";
connection default;
drop table t1;
create table t1 (a int, b int, key(b));
connection con2;
insert into t1 values (1,1),(null,null),(3,3),(4,null),(null,5);
connection default;
set session transaction isolation level READ UNCOMMITTED;
set debug_sync= "alter_table_online_downgraded signal downgraded wait_for goalters";
alter table t1 force, algorithm=copy;
connection con2;
set debug_sync= "now wait_for downgraded";
delete from t1 where b is null;
set debug_sync= "now signal goalters";
connection default;
drop table t1;
set debug_sync= reset;
drop table iso_levels;
# MDEV-32126 Assertion fails upon online ALTER and binary log enabled
create temporary table tmp (id int, primary key(id)) engine=innodb;
create table t1 (a int, b text);
create table t2 (a int, b int, c char(8), d text, unique(a));
insert into t2 values (1,1,'f','e'),(1000,1000,'c','b');
connection default;
set debug_sync= 'alter_table_online_before_lock signal go_trx wait_for go_alter';
alter table t2 force, algorithm=copy, lock=none;
connection con2;
set debug_sync= 'now wait_for go_trx';
start transaction;
insert into t1 values (3,'a');
insert into t2 values (3,3,'a','x'), (3,3,'a','x');
ERROR 23000: Duplicate entry '3' for key 'a'
insert into t2 values (3,3,'a','x');
commit;
set debug_sync= 'now signal go_alter';
connection default;
truncate t2;
set @@binlog_format=mixed;
connection con2;
start transaction;
create temporary table tmp (id int, primary key(id));
insert into t1 values (1, repeat('x',8000)),(2, repeat('x',8000));
update t2 set b = null order by b limit 2;
insert into t1 values (3, repeat('x',8000));
delete from t1;
insert into t2 values (1,1,'f','e'),(1000,1000,'c','b');
commit;
connection default;
set debug_sync= 'alter_table_online_before_lock signal go_trx wait_for go_alter';
alter table t2 force, algorithm=copy, lock=none;
connection con2;
set debug_sync= 'now wait_for go_trx';
start transaction;
drop temporary table if exists tmp;
insert into t2 values (3,3,'a','x'), (3,3,'a','x');
ERROR 23000: Duplicate entry '3' for key 'a'
insert into t2 values (3,3,'a','x');
commit;
set debug_sync= 'now signal go_alter';
connection default;
drop table t1, t2;
set @@binlog_format=default;
set debug_sync= reset;
# MDEV-32444 Data from orphaned XA transaction is lost after online alter
create table t (a int primary key);
insert into t values (1);
# XA commit
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for go';
alter table t force, algorithm=copy, lock=none;
connection con1;
set debug_sync= 'now wait_for downgraded';
xa begin 'x1';
update t set a = 2 where a = 1;
xa end 'x1';
xa prepare 'x1';
set debug_sync= 'thread_end signal xa_detach wait_for close';
disconnect con1;
connection con2;
set debug_sync= 'now signal close wait_for xa_detach';
xa commit 'x1';
set debug_sync= 'now signal go';
connection default;
select * from t;
a
2
# XA rollback
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for go';
alter table t force, algorithm=copy, lock=none;
connect con1, localhost, root,,;
set debug_sync= 'now wait_for downgraded';
xa begin 'x2';
insert into t values (53);
xa end 'x2';
xa prepare 'x2';
set debug_sync= 'thread_end signal xa_detach wait_for close';
disconnect con1;
connection con2;
set debug_sync= 'now signal close wait_for xa_detach';
xa rollback 'x2';
set debug_sync= 'now signal go';
connection default;
select * from t;
a
2
# XA transaction is left uncommitted
# end then is rollbacked after alter fails
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for go';
set statement innodb_lock_wait_timeout=0, lock_wait_timeout= 0
for alter table t force, algorithm=copy, lock=none;
connect con1, localhost, root,,;
set debug_sync= 'now wait_for downgraded';
xa begin 'xuncommitted';
insert into t values (3);
xa end 'xuncommitted';
xa prepare 'xuncommitted';
set debug_sync= 'now signal go';
set debug_sync= 'thread_end signal xa_detach wait_for close';
disconnect con1;
connection default;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
set debug_sync= 'now signal close wait_for xa_detach';
xa rollback 'xuncommitted';
select * from t;
a
2
# Same, but commit
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for go';
set statement innodb_lock_wait_timeout=0, lock_wait_timeout= 0
for alter table t force, algorithm=copy, lock=none;
connect con1, localhost, root,,;
set debug_sync= 'now wait_for downgraded';
xa begin 'committed_later';
insert into t values (3);
xa end 'committed_later';
xa prepare 'committed_later';
set debug_sync= 'now signal go';
set debug_sync= 'thread_end signal xa_detach wait_for close';
disconnect con1;
connection default;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
set debug_sync= 'now signal close wait_for xa_detach';
xa commit 'committed_later';
select * from t;
a
2
3
# Commit, but error in statement, and there is some stmt data to rollback
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for go';
alter table t force, algorithm=copy, lock=none;
connect con1, localhost, root,,;
set debug_sync= 'now wait_for downgraded';
xa begin 'x1';
insert into t values (4), (3);
ERROR 23000: Duplicate entry '3' for key 'PRIMARY'
insert into t values (5);
xa end 'x1';
xa prepare 'x1';
set debug_sync= 'thread_end signal xa_detach wait_for close';
disconnect con1;
connection con2;
set debug_sync= 'now signal close wait_for xa_detach';
xa commit 'x1';
set debug_sync= 'now signal go';
connection default;
select * from t;
a
2
3
5
connect con1, localhost, root,,;
connection default;
drop table t;
set debug_sync= reset;
# MDEV-32771 Server crash upon online alter with concurrent XA
create table t (a int primary key);
insert t values(1),(2),(3);
# First, check that nothing from the rollbacked statement commits
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for go';
alter table t add b int default (555), algorithm=copy;
connection con1;
set debug_sync= 'now wait_for downgraded';
xa start 'xid';
update t set a = 0;
ERROR 23000: Duplicate entry '0' for key 'PRIMARY'
xa end 'xid';
xa prepare 'xid';
xa commit 'xid';
set debug_sync= 'now signal go';
connection default;
select * from t;
a	b
1	555
2	555
3	555
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for go';
alter table t add c int default(777), algorithm=copy;
connection con1;
set debug_sync= 'now wait_for downgraded';
xa start 'xid';
update t set a = 0;
ERROR 23000: Duplicate entry '0' for key 'PRIMARY'
xa end 'xid';
xa prepare 'xid';
xa rollback 'xid';
set debug_sync= 'now signal go';
connection default;
select * from t;
a	b	c
1	555	777
2	555	777
3	555	777
# Same, but add one successful statement into transaction
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for go';
alter table t drop b, algorithm=copy;
connection con1;
set debug_sync= 'now wait_for downgraded';
xa start 'xid';
update t set a = 10 where a = 1;
update t set a = 0;
ERROR 23000: Duplicate entry '0' for key 'PRIMARY'
xa end 'xid';
xa prepare 'xid';
xa rollback 'xid';
set debug_sync= 'now signal go';
connection default;
select * from t;
a	c
1	777
2	777
3	777
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for go';
alter table t drop primary key, algorithm=copy;
connection con1;
set debug_sync= 'now wait_for downgraded';
xa start 'xid';
# This statement will take effect.
update t set a = 10 where a = 1;
update t set a = 0;
ERROR 23000: Duplicate entry '0' for key 'PRIMARY'
xa end 'xid';
xa prepare 'xid';
xa commit 'xid';
set debug_sync= 'now signal go';
connection default;
select * from t;
a	c
10	777
2	777
3	777
# The only statement succeeds (test both commit and rollback)
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for go';
alter table t add d text default ('qwe'), algorithm=copy;
connection con1;
set debug_sync= 'now wait_for downgraded';
xa start 'xid';
update t set a = 0;
xa end 'xid';
xa prepare 'xid';
xa rollback 'xid';
set debug_sync= 'now signal go';
connection default;
select * from t;
a	c	d
10	777	qwe
2	777	qwe
3	777	qwe
set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for go';
alter table t drop c, algorithm=copy;
connection con1;
set debug_sync= 'now wait_for downgraded';
xa start 'xid';
update t set a = 0;
xa end 'xid';
xa prepare 'xid';
xa commit 'xid';
set debug_sync= 'now signal go';
connection default;
select * from t;
a	d
0	qwe
0	qwe
0	qwe
drop table t;
#
# MDEV-32803 Assertion `total == 0' failed in Event_log::write_cache_raw
#
create or replace table t1 (a int) engine=aria;
insert t1 values (5);
set debug_sync= 'alter_table_copy_end SIGNAL ended WAIT_FOR end';
alter table t1 add b int NULL, algorithm= copy, lock= none;
connection con2;
set debug_sync= 'now WAIT_FOR ended';
begin;
insert into t1 values (123);
insert into t1 values (456), (789);
commit;
set debug_sync= 'now SIGNAL end';
connection default;
select * from t1;
a	b
5	NULL
123	NULL
456	NULL
789	NULL
drop table t1;
# MDEV-32614 LeakSanitizer errors in copy_data_between_tables
create table t (a int, b int) engine=aria;
insert into t select seq, seq from seq_1_to_5;
backup stage start;
connect  con_lock,localhost,root,,;
set lock_wait_timeout= 1;
set debug_sync='copy_data_between_tables_before_reset_backup_lock signal backup wait_for continue';
alter table t add index (b), algorithm=copy, lock=none;
connection default;
set debug_sync='now wait_for backup';
backup stage block_commit;
set debug_sync='now signal continue';
connection con_lock;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
disconnect con_lock;
connection default;
backup stage end;
alter table t add index (a), algorithm=copy, lock=none;
connection default;
drop table t;
set global default_storage_engine= MyISAM;
disconnect con1;
disconnect con2;
#
# End of 11.2 tests
#