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

CREATE TABLE t1 (x INT NOT NULL UNIQUE KEY) ENGINE=InnoDB;
INSERT INTO t1 VALUES(5);

SET GLOBAL innodb_log_checkpoint_now=TRUE;

# Start an ALTER TABLE and stop it before renaming the files
SET DEBUG_SYNC='commit_cache_rebuild SIGNAL ready WAIT_FOR finish';

--send ALTER TABLE t1 ADD PRIMARY KEY(x)

connect (con1,localhost,root,,);

SET DEBUG_SYNC='now WAIT_FOR ready';

SET GLOBAL innodb_log_checkpoint_now=TRUE;

SET DEBUG_SYNC='now SIGNAL finish';

disconnect con1;
connection default;
reap;
SHOW CREATE TABLE t1;
DROP TABLE t1;
SET DEBUG_SYNC='RESET';

--source include/wait_until_count_sessions.inc