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

set default_storage_engine=innodb;
# Ensure that the history list length will actually be decremented by purge.
SET @save_stats_persistent = @@GLOBAL.innodb_stats_persistent;
SET GLOBAL innodb_stats_persistent = 0;

CREATE TABLE `t` (
  `a` VARCHAR(100),
  `b` VARCHAR(100),
  `c` VARCHAR(200) GENERATED ALWAYS AS (CONCAT(a,b)) VIRTUAL,
  `h` VARCHAR(10) DEFAULT NULL,
  `i` int
) ENGINE=InnoDB;

INSERT INTO t VALUES (REPEAT('g', 100), REPEAT('x', 10), DEFAULT, "kk", 1);
INSERT INTO t VALUES (REPEAT('a', 100), REPEAT('b', 100), DEFAULT, "mm", 2);

CREATE INDEX idx ON t(c(100));

SET session debug_dbug="+d,ib_alter_add_virtual_fail";
--error ER_WRONG_KEY_COLUMN
ALTER TABLE t ADD COLUMN x VARCHAR(200) GENERATED ALWAYS AS (a) VIRTUAL,
ALGORITHM = INPLACE;
--error ER_WRONG_KEY_COLUMN
ALTER TABLE t DROP COLUMN c, ALGORITHM = INPLACE;
SET session debug_dbug="";
DROP TABLE t;

#online test
CREATE TABLE t (a INT, b INT, c INT GENERATED ALWAYS AS(a+b), h VARCHAR(10));

INSERT INTO t VALUES (11, 3, DEFAULT, 'mm');
INSERT INTO t VALUES (18, 1, DEFAULT, 'mm');
INSERT INTO t VALUES (28, 1, DEFAULT, 'mm');
INSERT INTO t VALUES (null, null, DEFAULT, "mx");

SET DEBUG_SYNC = 'innodb_inplace_alter_table_enter SIGNAL start_create WAIT_FOR go_ahead';
--send CREATE INDEX idx ON t(c)

connect (con1,localhost,root,,);

SET DEBUG_SYNC = 'now WAIT_FOR start_create';
update t set a=0 where a = 11;
start transaction;
update t set a=1 where a = 0;
ROLLBACK;
SET DEBUG_SYNC = 'now SIGNAL go_ahead';

connection default;
reap;

SELECT c FROM t;
SHOW CREATE TABLE t;
SELECT * FROM t;

--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
ALTER TABLE t FORCE, LOCK=NONE;
if (0) {# MDEV-14341 TODO: re-enable this
SET DEBUG_SYNC = 'innodb_inplace_alter_table_enter SIGNAL start_create WAIT_FOR go_ahead';
--send ALTER TABLE t FORCE

connection con1;
SET DEBUG_SYNC = 'now WAIT_FOR start_create';
start transaction;
update t set a=1 where a = 0;
rollback;
start transaction;
delete from t;
insert into t values(1,null,default,null);
rollback;
start transaction;
update t set b=b+1;
rollback;
SET DEBUG_SYNC = 'now SIGNAL go_ahead';

connection default;
reap;

check table t;
SELECT c FROM t;

SET DEBUG_SYNC = 'innodb_inplace_alter_table_enter SIGNAL start_create WAIT_FOR go_ahead';
--send ALTER TABLE t FORCE

connection con1;

SET DEBUG_SYNC = 'now WAIT_FOR start_create';
start transaction;
DELETE FROM t WHERE a = 0;
ROLLBACK;
DELETE FROM t WHERE a = 0;
SET DEBUG_SYNC = 'now SIGNAL go_ahead';

connection default;
reap;

SELECT c FROM t;
}

disconnect con1;
DROP TABLE t;

SET DEBUG_SYNC = 'RESET';


# Test add virtual column and add index at the same time
# introduce some error

CREATE TABLE t (a INT, b INT, c INT GENERATED ALWAYS AS(a+b), h VARCHAR(10));

INSERT INTO t VALUES (11, 3, DEFAULT, 'mm');

INSERT INTO t VALUES (18, 1, DEFAULT, 'mm');

INSERT INTO t VALUES (28, 1, DEFAULT, 'mm');

INSERT INTO t VALUES (null, null, DEFAULT, 'mm');

CREATE INDEX idx_1 on t(c);

SET @saved_dbug = @@SESSION.debug_dbug;
SET debug_dbug = '+d,create_index_fail';

--enable_info
--error ER_DUP_ENTRY
ALTER TABLE t ADD COLUMN x INT GENERATED ALWAYS AS(a+b), ADD INDEX idx (x),
ADD INDEX idcx (c,x);

UPDATE t SET a=a+1;

--error ER_DUP_ENTRY
ALTER TABLE t ADD INDEX idc(c);
SET debug_dbug = @saved_dbug;
--disable_info

UPDATE t SET b=b-1;

SHOW CREATE TABLE t;

SELECT c FROM t;

DROP TABLE t;

if (0) {# MDEV-14341 TODO: re-enable LOCK=NONE and these tests
--echo #
--echo # Bug#22018532 ASSERTION WHEN ONLINE REAPPLY REBUILD LOG ON
--echo # MULTIPLE INDEXED VIRTUAL COLUMNS
--echo #

create table t (
  a int as (1) virtual,
  b int,
  c int as (1) virtual,
  unique(b),
  unique(c),
  key(a)
) engine=innodb;

insert ignore into t values();

SET DEBUG_SYNC = 'innodb_inplace_alter_table_enter SIGNAL start_create WAIT_FOR go_ahead';
--send optimize table t

connect (con1,localhost,root,,);

SET DEBUG_SYNC = 'now WAIT_FOR start_create';
insert ignore into t values();
SET DEBUG_SYNC = 'now SIGNAL go_ahead';

connection default;
--echo /* connection default */ optimize table t;
reap;
SELECT c FROM t;
SHOW CREATE TABLE t;
SELECT * FROM t;
DROP TABLE t;

# Do another test without duplicate error

CREATE TABLE t (a INT, b INT, c INT GENERATED ALWAYS AS(a+b), h VARCHAR(10));

INSERT INTO t VALUES (11, 3, DEFAULT, 'mm');
INSERT INTO t VALUES (18, 1, DEFAULT, 'mm');
INSERT INTO t VALUES (28, 1, DEFAULT, 'mm');
INSERT INTO t VALUES (null, null, DEFAULT, 'mm');

CREATE INDEX idx ON t(c);

SET DEBUG_SYNC = 'innodb_inplace_alter_table_enter SIGNAL start_rebuild WAIT_FOR go_ahead';
--send optimize table t

connection con1;
SET DEBUG_SYNC = 'now WAIT_FOR start_rebuild';
INSERT INTO t VALUES (48, 2, DEFAULT, 'xx');
INSERT INTO t VALUES (68, 3, DEFAULT, 'sx');
SET DEBUG_SYNC = 'now SIGNAL go_ahead';

connection default;
--echo /* connection default */ optimize table t;
reap;

SELECT c FROM t;

disconnect con1;

DROP TABLE t;

--echo #
--echo #  Bug#22951879 - ASSERTS RELATED TO ONLINE DDL AND GCOL
--echo #

# Create a table with 2 virtual column, one (vbidxcol) is indexed and
# the other one (vbcol) is not
create table ibstd_14 (a int not null, d int not null, b varchar(198) not null, c char(181), vadcol int as (a+length(d)) stored, vbcol char(2) as (substr(b,2,2)) virtual, vbidxcol char(3) as (substr(b,1,3)) virtual , index(d), index(a), index(vbidxcol), index(a,vbidxcol), index(vbidxcol,d), unique key (b(10), a, d), index(c(99), b(31)), index(b(5), c(10), a) , index(a,d)) engine=InnoDB stats_persistent=1 row_format=dynamic;

# Do an alter table rebuild table and also create a new index on this
# non-indexed virtual column
SET DEBUG_SYNC = 'innodb_inplace_alter_table_enter SIGNAL start_create WAIT_FOR go_ahead';
--send alter table ibstd_14  row_format=compressed key_block_size=4,add  key kn3 (d,c,vbcol,b)

# Do a concurrent insert, and make sure this newly indexed virtual column
# is also logged
connect (con1,localhost,root);
SET DEBUG_SYNC = 'now WAIT_FOR start_create';
insert into ibstd_14 (a,d,b,c, vbidxcol, vbcol) values ('118','6',repeat('oacolaarlruoacuroauurloraarucoooarcooauoolacalllaulrruarrrucruuooclacuoouccarrcoocloccorrrrarourcooalloocooccouruolaorlcaocualolc','1'),repeat('lolrrlalcocroraaulauclaaucolcorcuooaolruaooooluooooouaoorlarucorullalcrrloccououaooaorluorraclrcooouuolocoaolcocaaculruoocucoocoooauuolarcoraraocaoolulolarru','1'),default,default);

insert into ibstd_14 (a,d,b,c, vbidxcol, vbcol) values ('118','6', 'aaaa', 'lll', default, default);

# Also do an concurrent update, make sure this is performed
update ibstd_14 set b='11111' where b='aaaa';

SET DEBUG_SYNC = 'now SIGNAL go_ahead';

connection default;
reap;

select * from ibstd_14;

# This will use the newly added "kn3" index, to check materialized vbcol
# after log reapply
select d,c,vbcol,b from  ibstd_14;

# check the value is inserted into the index
select vbcol from ibstd_14;

drop table ibstd_14;

--echo #
--echo # Bug#22018745 CORRUPTION IN ONLINE TABLE REBUILD
--echo # (ROW_FORMAT=REDUNDANT, INDEXED VIRTUAL COLUMN)
--echo #

CREATE TABLE t (
  b char(5) PRIMARY KEY,
  v char(3) GENERATED ALWAYS AS (substr(b,1,3)) VIRTUAL, KEY(v)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=REDUNDANT;

connection con1;
SET DEBUG_SYNC='row_log_table_apply1_before SIGNAL prepared WAIT_FOR apply';
--send OPTIMIZE TABLE t
connection default;

SET DEBUG_SYNC='now WAIT_FOR prepared';
INSERT INTO t SET b='fubar';
BEGIN;
DELETE FROM t;
ROLLBACK;
SET DEBUG_SYNC='now SIGNAL apply';

connection con1;
reap;

connection default;
CHECK TABLE t;
SELECT * FROM t;
DROP TABLE t;

disconnect con1;
}
SET DEBUG_SYNC = 'RESET';


--echo #
--echo # Bug#28825718 - ASSERTION FAILURE: TRX0REC.CC:NNN:N_IDX > 0 WHILE DOING REPLACE/INSERT
--echo #

CREATE TABLE t1(a INT PRIMARY KEY, b INT, c INT GENERATED ALWAYS AS(b+1) VIRTUAL) ENGINE=InnoDB;

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

connect (con1,localhost,root,,);
SET DEBUG_SYNC = 'row_log_apply_after SIGNAL s1 WAIT_FOR s2';
SET lock_wait_timeout = 1;
--send ALTER TABLE t1 ADD UNIQUE INDEX(c, b)

connection default;
SET DEBUG_SYNC = 'now WAIT_FOR s1';
SET DEBUG_SYNC = 'row_log_insert_handle SIGNAL s2 WAIT_FOR s3';
--send INSERT INTO t1(a, b) VALUES(2, 2)

connection con1;
--error ER_LOCK_WAIT_TIMEOUT
reap;
SET DEBUG_SYNC = 'now SIGNAL s3';
disconnect con1;
connection default;
reap;
SET DEBUG_SYNC = 'RESET';
ALTER TABLE t1 ADD KEY(b);
INSERT INTO t1(a, b) VALUES(3, 3);
SELECT * FROM t1;
CHECK TABLE t1;
DROP TABLE t1;

--echo #
--echo # MDEV-28806 Assertion `flag == 1' failure in
--echo # row_build_index_entry_low upon concurrent ALTER and UPDATE
--echo #

CREATE TABLE t1(a CHAR(8), b INT, c INT AS (b), KEY(a)) ENGINE=InnoDB;
INSERT INTO t1(b) VALUES (1),(2);

--connect (con1,localhost,root,,test)
SET DEBUG_SYNC="alter_table_inplace_before_lock_upgrade SIGNAL dml_start WAIT_FOR dml_commit";
send ALTER TABLE t1 ADD KEY ind (c);

--connection default
SET DEBUG_SYNC="now WAIT_FOR dml_start";
UPDATE t1 SET a ='foo';
SET DEBUG_SYNC="now SIGNAL dml_commit";

# Cleanup
--connection con1
--reap
CHECK TABLE t1;
DROP TABLE t1;
--disconnect con1
connection default;
SET DEBUG_SYNC=RESET;

SET GLOBAL innodb_stats_persistent = @save_stats_persistent;

--source include/wait_until_count_sessions.inc