--source include/have_innodb.inc
--source include/have_debug_sync.inc
--source include/have_debug.inc
--source include/have_partition.inc

set default_storage_engine=innodb;
set @old_dbug=@@global.debug_dbug;
# Ensure that the history list length will actually be decremented by purge.
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%";
--source ../../innodb/include/wait_all_purged.inc
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%";
--source ../../innodb/include/wait_all_purged.inc
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;
--source ../../innodb/include/wait_all_purged.inc
SET global debug_dbug=@old_dbug;
DROP TABLE t1;

#
# BUG#22082762 RE-ENABLE SUPPORT FOR ADDING VIRTUAL INDEX WHILE DROPPING VIRTUAL COLUMN
#
--source include/count_sessions.inc

connect (con1,localhost,root,,);
connection default;

# Test adding virtual index on newly added virtual column
CREATE TABLE t1 (a INT, b INT);

INSERT INTO t1(a, b) VALUES (1, 1), (2, 2), (3, 3);

connection con1;
--echo # disable purge
CREATE TABLE t0 (a INT) ENGINE=InnoDB;
BEGIN; SELECT * FROM t0;

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';
--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
ALTER TABLE t1 ADD COLUMN c INT GENERATED ALWAYS AS(a+b), ADD INDEX idx (c), ALGORITHM=INPLACE, LOCK=NONE;
send 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';

--echo # enable purge
COMMIT;

--echo # wait for purge to process the deleted records.
--source ../../innodb/include/wait_all_purged.inc

SET DEBUG_SYNC= 'now SIGNAL purged';

connection default;
--echo /* connection default */ ALTER TABLE t1 ADD COLUMN c INT GENERATED ALWAYS AS(a+b), ADD INDEX idx (c), ALGORITHM=INPLACE, LOCK=SHARED;
--reap
SHOW CREATE TABLE t1;

SELECT * FROM t1;

DROP TABLE t1;

# Test adding index on existing virtual column
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;
--echo # disable purge
BEGIN; SELECT * FROM t0;

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';
send 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);

--echo # enable purge
COMMIT;

--echo # wait for purge to process the deleted/updated records.
let $wait_all_purged=2;
--source ../../innodb/include/wait_all_purged.inc
let $wait_all_purged=0;

SET DEBUG_SYNC= 'now SIGNAL purged';

disconnect con1;

connection default;
--echo /* connection default */ ALTER TABLE t1 ADD INDEX idx (c), ALGORITHM=INPLACE, LOCK=NONE;
--reap
SHOW CREATE TABLE t1;

SELECT * FROM t1;

DROP TABLE t0, t1;

#
# test MDLs with purge
#
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;
--source ../../innodb/include/wait_all_purged.inc
disconnect lock_table;
start transaction with consistent snapshot;
commit;
--source ../../innodb/include/wait_all_purged.inc
set global debug_dbug=@old_dbug;
drop table t;

--echo #
--echo # MDEV-15165 InnoDB purge for index on virtual column
--echo # is trying to access an incomplete record
--echo #
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';
send INSERT INTO t1 (u,b) VALUES(1,REPEAT('a',16384));
connection prevent_purge;
SET DEBUG_SYNC='now WAIT_FOR halfway';
COMMIT;
--source ../../innodb/include/wait_all_purged.inc
SET DEBUG_SYNC='now SIGNAL purged';

connection default;
reap;
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;
SET DEBUG_SYNC='row_trunc_before_dict_lock SIGNAL commit WAIT_FOR release';
send TRUNCATE TABLE t1;

connection prevent_purge;
SET DEBUG_SYNC='now WAIT_FOR commit';
COMMIT;
SET DEBUG_SYNC='now SIGNAL purge_start';
disconnect prevent_purge;

connection default;
SET DEBUG_SYNC='now WAIT_FOR purge_start';
let $wait_all_purged=2;
--source ../../innodb/include/wait_all_purged.inc
let $wait_all_purged=0;
SET DEBUG_SYNC='now SIGNAL release';
SET GLOBAL debug_dbug=@old_dbug;

connection truncate;
reap;
disconnect truncate;

connection default;
--source ../../innodb/include/wait_all_purged.inc
DROP TABLE t1, t2;

--source include/wait_until_count_sessions.inc
set debug_sync=reset;
SET GLOBAL innodb_purge_rseg_truncate_frequency = @saved_frequency;