CREATE INDEX on virtual column ignores errors due to concurrent DML

--source include/have_innodb.inc

--source include/have_debug.inc

--source include/have_debug_sync.inc

CREATE TABLE t(a INT, b INT AS (a/a) VIRTUAL) ENGINE=InnoDB;

INSERT INTO t SET a=0;

SELECT * FROM t;

DELETE FROM t;

ALTER TABLE t ADD INDEX(b);

--error ER_DIVISION_BY_ZERO

INSERT INTO t SET a=0;

ALTER TABLE t DROP INDEX b;

connect (con1,localhost,root,,);

SET DEBUG_SYNC = 'row_log_apply_before SIGNAL scanned WAIT_FOR apply';

send ALTER TABLE t ADD INDEX(b);

connection default;

SET DEBUG_SYNC = 'now WAIT_FOR scanned';

INSERT INTO t SET a=0;

SET DEBUG_SYNC = 'now SIGNAL apply';

connection con1;

--echo # ERROR 1: The ALTER TABLE fails to fail!

#--error ER_DIVISION_BY_ZERO

reap;

connection default;

SELECT * FROM t;

CHECK TABLE t;

DELETE FROM t;

ALTER TABLE t DROP INDEX b;

connection con1;

SET DEBUG_SYNC = 'row_log_apply_after SIGNAL applied WAIT_FOR commit';

send ALTER TABLE t ADD INDEX(b);

connection default;

SET DEBUG_SYNC = 'now WAIT_FOR applied';

INSERT INTO t SET a=0;

SET DEBUG_SYNC = 'now SIGNAL commit';

connection con1;

--echo # ERROR 2: The ALTER TABLE fails to fail!

#--error ER_DIVISION_BY_ZERO

reap;

connection default;

CHECK TABLE t;

SELECT * FROM t;

SHOW CREATE TABLE t;

SET DEBUG_SYNC = RESET;

DROP TABLE t;