innodb_virtual_debug_purge.result

set default_storage_engine=innodb;
set @old_dbug=@@global.debug_dbug;
SET @saved_frequency = @@GLOBAL.innodb_purge_rseg_truncate_frequency;
SET GLOBAL innodb_purge_rseg_truncate_frequency = 1;
CREATE TABLE `t` (
`a` BLOB,
`b` BLOB,
`c` BLOB GENERATED ALWAYS AS (CONCAT(a,b)) VIRTUAL,
`h` VARCHAR(10) DEFAULT NULL,
`i` int
) ENGINE=InnoDB;
INSERT INTO t VALUES (REPEAT('g', 16000), REPEAT('x', 16000), DEFAULT, "kk", 1);
INSERT INTO t VALUES (REPEAT('a', 16000), REPEAT('b', 16000), DEFAULT, "mm", 2);
CREATE INDEX idx ON t(c(100));
SET global debug_dbug="+d,ib_purge_virtual_index_callback";
UPDATE t SET a = REPEAT('m', 16000) WHERE a like "aaa%";
InnoDB		0 transactions not purged
SET global debug_dbug=@old_dbug;
DROP TABLE t;
CREATE TABLE t (
a TINYBLOB,
b TINYBLOB,
c TINYBLOB GENERATED ALWAYS AS (CONCAT(a,b)) VIRTUAL,
h VARCHAR(10) DEFAULT NULL,
i INT
) ROW_FORMAT=COMPACT ENGINE=InnoDB;
INSERT INTO t VALUES (REPEAT('g', 100), REPEAT('x', 100), DEFAULT, "kk", 1);
INSERT INTO t VALUES (REPEAT('a', 100), REPEAT('b', 100), DEFAULT, "mm", 2);
CREATE INDEX idx ON t(c(100));
SET global debug_dbug="+d,ib_purge_virtual_index_callback";
UPDATE t SET a = REPEAT('m', 100) WHERE a like "aaa%";
InnoDB		0 transactions not purged
SET global debug_dbug=@old_dbug;
DROP TABLE t;
CREATE TABLE t1 (
id INT NOT NULL,
store_id INT NOT NULL,
x INT GENERATED ALWAYS AS (id + store_id)
)
PARTITION BY RANGE (store_id) (
PARTITION p0 VALUES LESS THAN (6),
PARTITION p1 VALUES LESS THAN (11),
PARTITION p2 VALUES LESS THAN (16),
PARTITION p3 VALUES LESS THAN (21)
);
insert into t1 values(1, 2, default);
insert into t1 values(3, 4, default);
insert into t1 values(3, 12, default);
insert into t1 values(4, 18, default);
CREATE INDEX idx ON t1(x);
SET global debug_dbug="+d,ib_purge_virtual_index_callback";
UPDATE t1 SET id = 10 WHERE id = 1;
InnoDB		0 transactions not purged
SET global debug_dbug=@old_dbug;
DROP TABLE t1;
connect  con1,localhost,root,,;
connection default;
CREATE TABLE t1 (a INT, b INT);
INSERT INTO t1(a, b) VALUES (1, 1), (2, 2), (3, 3);
connection con1;
# disable purge
CREATE TABLE t0 (a INT) ENGINE=InnoDB;
BEGIN;
SELECT * FROM t0;
a
connection default;
DELETE FROM t1 WHERE a = 1;
UPDATE t1 SET a = 4, b = 4 WHERE a = 3;
INSERT INTO t1(a, b) VALUES (5, 5);
SET DEBUG_SYNC= 'inplace_after_index_build SIGNAL uncommitted WAIT_FOR purged';
ALTER TABLE t1 ADD COLUMN c INT GENERATED ALWAYS AS(a+b), ADD INDEX idx (c), ALGORITHM=INPLACE, LOCK=NONE;
ERROR 0A000: LOCK=NONE is not supported. Reason: INPLACE ADD or DROP of virtual columns cannot be combined with other ALTER TABLE actions. Try LOCK=SHARED
ALTER TABLE t1 ADD COLUMN c INT GENERATED ALWAYS AS(a+b), ADD INDEX idx (c), ALGORITHM=INPLACE, LOCK=SHARED;
connection con1;
SET DEBUG_SYNC= 'now WAIT_FOR uncommitted';
# enable purge
COMMIT;
# wait for purge to process the deleted records.
InnoDB		0 transactions not purged
SET DEBUG_SYNC= 'now SIGNAL purged';
connection default;
/* connection default */ ALTER TABLE t1 ADD COLUMN c INT GENERATED ALWAYS AS(a+b), ADD INDEX idx (c), ALGORITHM=INPLACE, LOCK=SHARED;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL,
  `b` int(11) DEFAULT NULL,
  `c` int(11) GENERATED ALWAYS AS (`a` + `b`) VIRTUAL,
  KEY `idx` (`c`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
SELECT * FROM t1;
a	b	c
2	2	4
4	4	8
5	5	10
DROP TABLE t1;
CREATE TABLE t1 (a INT, b INT, c INT GENERATED ALWAYS AS(a+b));
INSERT INTO t1(a, b) VALUES (1, 1), (2, 2), (3, 3), (4, 4);
connection con1;
# disable purge
BEGIN;
SELECT * FROM t0;
a
connection default;
DELETE FROM t1 WHERE a = 1;
UPDATE t1 SET a = 2, b = 2 WHERE a = 5;
INSERT INTO t1(a, b) VALUES (6, 6);
SET DEBUG_SYNC= 'inplace_after_index_build SIGNAL uncommitted WAIT_FOR purged';
ALTER TABLE t1 ADD INDEX idx (c), ALGORITHM=INPLACE, LOCK=NONE;
connection con1;
SET DEBUG_SYNC= 'now WAIT_FOR uncommitted';
DELETE FROM t1 WHERE a = 3;
UPDATE t1 SET a = 7, b = 7 WHERE a = 4;
INSERT INTO t1(a, b) VALUES (8, 8);
# enable purge
COMMIT;
# wait for purge to process the deleted/updated records.
InnoDB		1 transactions not purged
SET DEBUG_SYNC= 'now SIGNAL purged';
disconnect con1;
connection default;
/* connection default */ ALTER TABLE t1 ADD INDEX idx (c), ALGORITHM=INPLACE, LOCK=NONE;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL,
  `b` int(11) DEFAULT NULL,
  `c` int(11) GENERATED ALWAYS AS (`a` + `b`) VIRTUAL,
  KEY `idx` (`c`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
SELECT * FROM t1;
a	b	c
2	2	4
7	7	14
6	6	12
8	8	16
DROP TABLE t0, t1;
create table t (a blob, b blob, c blob as (concat(a,b)), h varchar(10), index (c(100)));
insert t(a,b,h) values (repeat('g', 16000), repeat('x', 16000), "kk");
insert t(a,b,h) values (repeat('a', 16000), repeat('b', 16000), "mm");
set global debug_dbug="+d,ib_purge_virtual_index_callback";
connect prevent_purge, localhost, root;
start transaction with consistent snapshot;
connection default;
update t set a = repeat('m', 16000) where a like "aaa%";
connect lock_table, localhost, root;
lock table t write;
connection prevent_purge;
commit;
connection default;
InnoDB		0 transactions not purged
disconnect lock_table;
start transaction with consistent snapshot;
commit;
InnoDB		0 transactions not purged
set global debug_dbug=@old_dbug;
drop table t;
#
# MDEV-15165 InnoDB purge for index on virtual column
# is trying to access an incomplete record
#
CREATE TABLE t1(
u INT PRIMARY KEY, b BLOB, ug INT GENERATED ALWAYS AS (u) VIRTUAL,
INDEX bug(b(100),ug)
) ENGINE=InnoDB;
INSERT INTO t1 (u,b) VALUES(1,REPEAT('a',16384));
connection prevent_purge;
start transaction with consistent snapshot;
connection default;
DELETE FROM t1;
SET DEBUG_SYNC='blob_write_middle SIGNAL halfway WAIT_FOR purged';
INSERT INTO t1 (u,b) VALUES(1,REPEAT('a',16384));
connection prevent_purge;
SET DEBUG_SYNC='now WAIT_FOR halfway';
COMMIT;
InnoDB		0 transactions not purged
SET DEBUG_SYNC='now SIGNAL purged';
connection default;
DROP TABLE t1;
CREATE TABLE t1 (y YEAR, vy YEAR AS (y) VIRTUAL UNIQUE, pk INT PRIMARY KEY)
ENGINE=InnoDB;
INSERT INTO t1 (pk,y) VALUES (1,2022);
CREATE TABLE t2(f1 INT NOT NULL, PRIMARY KEY(f1))ENGINE=InnoDB;
SET GLOBAL debug_dbug = '+d,ib_purge_virtual_index_callback';
BEGIN;
INSERT INTO t2(f1) VALUES(1);
connection prevent_purge;
SET DEBUG_SYNC=RESET;
start transaction with consistent snapshot;
connection default;
COMMIT;
connect truncate,localhost,root,,;
REPLACE INTO t1(pk, y) SELECT pk,y FROM t1;
TRUNCATE TABLE t1;
connection prevent_purge;
COMMIT;
SET DEBUG_SYNC='now SIGNAL purge_start';
disconnect prevent_purge;
connection default;
SET DEBUG_SYNC='now WAIT_FOR purge_start';
InnoDB		0 transactions not purged
SET GLOBAL debug_dbug=@old_dbug;
connection truncate;
disconnect truncate;
connection default;
DROP TABLE t1, t2;
#
# MDEV-16222 Assertion `0' failed in row_purge_remove_sec_if_poss_leaf
# on table with virtual columns and indexes
#
set @saved_dbug= @@global.debug_dbug;
set global debug_dbug= "+d,ib_purge_virtual_mdev_16222_1,ib_purge_virtual_mdev_16222_2";
create table t1 (
pk serial, vb tinyblob as (b) virtual, b tinyblob,
primary key(pk), index (vb(64)))
engine innodb;
insert ignore into t1 (b) values ('foo');
select * into outfile 'load.data' from t1;
load data infile 'load.data' replace into table t1;
set debug_sync= "now WAIT_FOR latch_released TIMEOUT 1";
set global debug_dbug= "-d,ib_purge_virtual_mdev_16222_1";
drop table t1;
set debug_sync= "now SIGNAL drop_started WAIT_FOR got_no_such_table TIMEOUT 1";
create table t1 (
pk serial, vb tinyblob as (b) virtual, b tinyblob,
primary key(pk), index (vb(64)))
engine innodb;
insert ignore into t1 (b) values ('foo');
select * into outfile 'load.data' from t1;
load data infile 'load.data' replace into table t1;
set debug_sync= "now WAIT_FOR got_no_such_table TIMEOUT 1";
set global debug_dbug= @saved_dbug;
drop table t1;
set debug_sync=reset;
SET GLOBAL innodb_purge_rseg_truncate_frequency = @saved_frequency;
#
# MDEV-18546 ASAN heap-use-after-free
# in innobase_get_computed_value / row_purge
#
CREATE TABLE t1 (
pk INT AUTO_INCREMENT,
b BIT(15),
v BIT(15) AS (b) VIRTUAL,
PRIMARY KEY(pk),
UNIQUE(v)
) ENGINE=InnoDB;
INSERT IGNORE INTO t1 (b) VALUES
(NULL),(b'011'),(b'000110100'),
(b'01101101010'),(b'01111001001011'),(NULL);
SET GLOBAL innodb_debug_sync = "ib_clust_v_col_before_row_allocated "
                               "SIGNAL before_row_allocated "
                               "WAIT_FOR flush_unlock";
SET GLOBAL innodb_debug_sync = "ib_open_after_dict_open "
                               "SIGNAL purge_open "
                               "WAIT_FOR select_open";
set @saved_dbug= @@global.debug_dbug;
set global debug_dbug= "+d,ib_purge_virtual_index_callback";
connect purge_waiter,localhost,root;
SET debug_sync= "now WAIT_FOR before_row_allocated";
connection default;
REPLACE INTO t1 (pk, b) SELECT pk, b FROM t1;
connection purge_waiter;
connection default;
disconnect purge_waiter;
FLUSH TABLES;
SET GLOBAL innodb_debug_sync = reset;
SET debug_sync= "now SIGNAL flush_unlock WAIT_FOR purge_open";
SET GLOBAL innodb_debug_sync = reset;
SET debug_sync= "ib_open_after_dict_open SIGNAL select_open";
SELECT * FROM t1;
pk	b	v
1	NULL	NULL
2		
3	4	4
4	j	j
5	K	K
6	NULL	NULL
DROP TABLE t1;
SET debug_sync= reset;
set global debug_dbug= @saved_dbug;