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FLUSH TABLES;
#
# MDEV-11369: Instant ADD COLUMN for InnoDB
#
CREATE TABLE t1(id INT PRIMARY KEY, c2 INT UNIQUE)
ENGINE=InnoDB ROW_FORMAT=REDUNDANT;
CREATE TABLE t2 LIKE t1;
INSERT INTO t1 VALUES(0,2);
INSERT INTO t2 VALUES(2,1);
ALTER TABLE t2 ADD COLUMN (c3 TEXT NOT NULL DEFAULT 'De finibus bonorum');
BEGIN;
INSERT INTO t2 VALUES(3,4,'accusantium doloremque laudantium');
connect ddl, localhost, root;
SET DEBUG_SYNC='innodb_alter_inplace_before_commit SIGNAL ddl WAIT_FOR ever';
ALTER TABLE t1 ADD COLUMN (c3 TEXT NOT NULL DEFAULT ' et malorum');
connection default;
SET DEBUG_SYNC='now WAIT_FOR ddl';
SET GLOBAL innodb_flush_log_at_trx_commit=1;
COMMIT;
# Kill the server
disconnect ddl;
# restart
SET GLOBAL innodb_purge_rseg_truncate_frequency=1;
SELECT * FROM t1;
id c2
0 2
SELECT * FROM t2;
id c2 c3
2 1 De finibus bonorum
3 4 accusantium doloremque laudantium
BEGIN;
DELETE FROM t1;
ROLLBACK;
InnoDB 0 transactions not purged
INSERT INTO t2 VALUES
(16,1551,'Omnium enim rerum'),(128,1571,' principia parva sunt');
BEGIN;
UPDATE t1 SET c2=c2+1;
connect ddl, localhost, root;
SET DEBUG_SYNC='innodb_alter_inplace_before_commit SIGNAL ddl WAIT_FOR ever';
ALTER TABLE t2 DROP COLUMN c3, ADD COLUMN c5 TEXT DEFAULT 'naturam abhorrere';
connection default;
SET DEBUG_SYNC='now WAIT_FOR ddl';
SET GLOBAL innodb_flush_log_at_trx_commit=1;
COMMIT;
# Kill the server
disconnect ddl;
# restart
SET @saved_frequency= @@GLOBAL.innodb_purge_rseg_truncate_frequency;
SET GLOBAL innodb_purge_rseg_truncate_frequency=1;
SELECT * FROM t1;
id c2
0 3
SELECT * FROM t2;
id c2 c3
2 1 De finibus bonorum
3 4 accusantium doloremque laudantium
16 1551 Omnium enim rerum
128 1571 principia parva sunt
BEGIN;
INSERT INTO t1 SET id=1;
DELETE FROM t2;
ROLLBACK;
InnoDB 0 transactions not purged
INSERT INTO t2 VALUES (64,42,'De finibus bonorum'), (347,33101,' et malorum');
BEGIN;
DELETE FROM t1;
connect ddl, localhost, root;
ALTER TABLE t2 DROP COLUMN c3;
SET DEBUG_SYNC='innodb_alter_inplace_before_commit SIGNAL ddl WAIT_FOR ever';
ALTER TABLE t2 ADD COLUMN (c4 TEXT NOT NULL DEFAULT ' et malorum');
connection default;
SET DEBUG_SYNC='now WAIT_FOR ddl';
SET GLOBAL innodb_flush_log_at_trx_commit=1;
COMMIT;
# Kill the server
disconnect ddl;
# restart
SET GLOBAL innodb_purge_rseg_truncate_frequency=1;
FOUND 3 /\[Note\] InnoDB: Rolled back recovered transaction / in mysqld.1.err
SELECT * FROM t1;
id c2
SELECT * FROM t2;
id c2
2 1
3 4
64 42
16 1551
128 1571
347 33101
BEGIN;
INSERT INTO t1 SET id=1;
DELETE FROM t2;
ROLLBACK;
InnoDB 0 transactions not purged
FLUSH TABLE t1,t2 FOR EXPORT;
t1 clustered index root page(type 17855):
N_RECS=0; LEVEL=0
header=0x010000030074 (id=0x696e66696d756d00)
header=0x010008030000 (id=0x73757072656d756d00)
t2 clustered index root page(type 18):
N_RECS=7; LEVEL=0
header=0x01000003008f (id=0x0000000000000000)
header=0x3000100c00d4 (id=0x80000000,
DB_TRX_ID=0x000000000000,
DB_ROLL_PTR=0x80000000000000,
BLOB=0x000000260000000000000008,
c2=NULL(4 bytes),
c3=0x44652066696e6962757320626f6e6f72756d)
header=0x0000180900f4 (id=0x80000002,
DB_TRX_ID=0x000000000000,
DB_ROLL_PTR=0x80000000000000,
c2=0x80000001)
header=0x0000200b0135 (id=0x80000003,
DB_TRX_ID=0x000000000000,
DB_ROLL_PTR=0x80000000000000,
c2=0x80000004,
c3=0x6163637573616e7469756d20646f6c6f72656d717565206c617564616e7469756d)
header=0x0000280b0165 (id=0x80000010,
DB_TRX_ID=0x000000000000,
DB_ROLL_PTR=0x80000000000000,
c2=0x8000060f,
c3=0x4f6d6e69756d20656e696d20726572756d)
header=0x000030090185 (id=0x80000040,
DB_TRX_ID=0x000000000000,
DB_ROLL_PTR=0x80000000000000,
c2=0x8000002a)
header=0x0000380b01ba (id=0x80000080,
DB_TRX_ID=0x000000000000,
DB_ROLL_PTR=0x80000000000000,
c2=0x80000623,
c3=0x207072696e63697069612070617276612073756e74)
header=0x0000400b0074 (id=0x8000015b,
DB_TRX_ID=0x000000000000,
DB_ROLL_PTR=0x80000000000000,
c2=0x8000814d,
c3=0x206574206d616c6f72756d)
header=0x080008030000 (id=0x000000000000000100)
UNLOCK TABLES;
DELETE FROM t2;
InnoDB 0 transactions not purged
#
# MDEV-24323 Crash on recovery after kill during instant ADD COLUMN
#
BEGIN;
INSERT INTO t1 VALUES(0,0);
connect ddl, localhost, root;
CREATE TABLE t3(id INT PRIMARY KEY, c2 INT, v2 INT AS(c2) VIRTUAL, UNIQUE(v2))
ENGINE=InnoDB;
INSERT INTO t3 SET id=1,c2=1;
SET DEBUG_SYNC='innodb_alter_inplace_before_commit SIGNAL ddl WAIT_FOR ever';
ALTER TABLE t3 ADD COLUMN c3 TEXT NOT NULL DEFAULT 'sic transit gloria mundi';
connection default;
SET DEBUG_SYNC='now WAIT_FOR ddl';
SET GLOBAL innodb_flush_log_at_trx_commit=1;
COMMIT;
# Kill the server
disconnect ddl;
# restart
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`id` int(11) NOT NULL,
`c2` int(11) DEFAULT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `c2` (`c2`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci ROW_FORMAT=REDUNDANT
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`id` int(11) NOT NULL,
`c2` int(11) DEFAULT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `c2` (`c2`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci ROW_FORMAT=REDUNDANT
SHOW CREATE TABLE t3;
Table Create Table
t3 CREATE TABLE `t3` (
`id` int(11) NOT NULL,
`c2` int(11) DEFAULT NULL,
`v2` int(11) GENERATED ALWAYS AS (`c2`) VIRTUAL,
PRIMARY KEY (`id`),
UNIQUE KEY `v2` (`v2`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t2,t3;
#
# MDEV-29440 InnoDB instant ALTER TABLE recovery wrongly uses
# READ COMMITTED isolation level instead of READ UNCOMMITTED
#
CREATE TABLE t2(a INT UNSIGNED PRIMARY KEY) ENGINE=InnoDB;
INSERT INTO t2 VALUES (1),(2),(3),(4),(5),(6);
BEGIN;
DELETE FROM t1;
connect ddl, localhost, root;
SET DEBUG_SYNC='innodb_alter_inplace_before_commit SIGNAL ddl WAIT_FOR ever';
ALTER TABLE t2 ADD COLUMN b TINYINT UNSIGNED NOT NULL DEFAULT 42 FIRST;
connection default;
SET DEBUG_SYNC='now WAIT_FOR ddl';
SET GLOBAL innodb_flush_log_at_trx_commit=1;
COMMIT;
# Kill the server
disconnect ddl;
# restart
CHECK TABLE t2;
Table Op Msg_type Msg_text
test.t2 check status OK
DROP TABLE t1,t2;
db.opt
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