config root man

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

# Save the initial number of concurrent sessions.
--source include/count_sessions.inc

CREATE TABLE t (
  a INTEGER,
  b BLOB GENERATED ALWAYS AS (a) VIRTUAL,
  INDEX (b(57))
)ENGINE=INNODB;

INSERT INTO t (a) VALUES (9);
BEGIN;
SAVEPOINT a;
UPDATE t set a = 12;
DELETE FROM t where a = 12;
ROLLBACK TO SAVEPOINT a;
COMMIT;

CHECK TABLE t;

SELECT * FROM t;

BEGIN;
INSERT INTO t (a) VALUES (10);
--source include/kill_and_restart_mysqld.inc
SELECT * FROM t;
DROP TABLE t;

CREATE TABLE t (
  a INTEGER,
  b BLOB GENERATED ALWAYS AS (a) VIRTUAL,
  c INTEGER
)ENGINE=INNODB;

INSERT INTO t (a,c) VALUES (9, 10);
SELECT * FROM t;

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

# This DEBUG_SYNC should not kick in yet, because the duplicate key will be
# detected before we get a chance to apply the online log.

SET DEBUG_SYNC = 'row_log_apply_after SIGNAL created WAIT_FOR dml_done';
--send
ALTER TABLE t ADD KEY(b(57)), ALGORITHM=INPLACE;

connection default;
SET DEBUG_SYNC = 'now WAIT_FOR created';
BEGIN;
INSERT INTO t (a,c) VALUES (10, 12);
SELECT * FROM t;
ROLLBACK;
SET DEBUG_SYNC = 'now SIGNAL dml_done';

connection con1;
reap;
disconnect con1;
connection default;

SELECT * FROM t;
DROP TABLE t;

# drop virtual column and alter index
CREATE TABLE t (
  a INT,
  b INT,
  c INT GENERATED ALWAYS AS(a+b),
  d INT GENERATED ALWAYS AS(a+b+b),
  KEY(c, d)
)ENGINE=INNODB;

INSERT INTO t (a,b) VALUES (9, 10);
SELECT * FROM t;

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

# This DEBUG_SYNC should not kick in yet, because the duplicate key will be
# detected before we get a chance to apply the online log.

SET DEBUG_SYNC = 'row_log_apply_after SIGNAL created WAIT_FOR dml_done';
--send
ALTER TABLE t DROP COLUMN c, ALGORITHM=INPLACE;

connection default;
SET DEBUG_SYNC = 'now WAIT_FOR created';
BEGIN;
INSERT INTO t (a,b) VALUES (10, 12);
SELECT * FROM t;
ROLLBACK;
SET DEBUG_SYNC = 'now SIGNAL dml_done';

connection con1;
reap;
disconnect con1;
connection default;

SELECT * FROM t;

DROP TABLE t;

# Wait till all disconnects are completed
--source include/wait_until_count_sessions.inc