#
# Show what happens during ALTER TABLE when an existing file
# exists in the target location.
#
# Bug #19218794: IF TABLESPACE EXISTS, CAN'T CREATE TABLE,
#                BUT CAN ALTER ENGINE=INNODB
#
CREATE TABLE t1 (a SERIAL, b CHAR(10)) ENGINE=Memory;
INSERT INTO t1(b) VALUES('one'), ('two'), ('three');
#
# Create a file called MYSQLD_DATADIR/test/t1.ibd
# Directory listing of test/*.ibd
#
t1.ibd
ALTER TABLE t1 ENGINE = InnoDB;
ERROR HY000: Error on rename of 'OLD_FILE_NAME' to 'NEW_FILE_NAME' (errno: 184 "Tablespace already exists")
#
# Move the file to InnoDB as t2
#
ALTER TABLE t1 RENAME TO t2, ENGINE = INNODB;
SHOW CREATE TABLE t2;
Table	Create Table
t2	CREATE TABLE `t2` (
  `a` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
  `b` char(10) DEFAULT NULL,
  UNIQUE KEY `a` (`a`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=latin1
SELECT * from t2;
a	b
1	one
2	two
3	three
ALTER TABLE t2 RENAME TO t1;
ERROR HY000: Error on rename of 'OLD_FILE_NAME' to 'NEW_FILE_NAME' (errno: 184 "Tablespace already exists")
#
# Create another t1, but in the system tablespace.
#
SET GLOBAL innodb_file_per_table=OFF;
CREATE TABLE t1 (a SERIAL, b CHAR(20)) ENGINE=InnoDB;
INSERT INTO t1(b) VALUES('one'), ('two'), ('three');
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
  `b` char(20) DEFAULT NULL,
  UNIQUE KEY `a` (`a`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=latin1
SELECT name, space=0 FROM information_schema.innodb_sys_tables WHERE name = 'test/t1';
name	space=0
test/t1	1
#
# ALTER TABLE from system tablespace to system tablespace
#
ALTER TABLE t1 ADD COLUMN c INT, ALGORITHM=INPLACE;
ALTER TABLE t1 ADD COLUMN d INT, ALGORITHM=COPY;
#
# Try to move t1 from the system tablespace to a file-per-table
# while a blocking t1.ibd file exists.
#
SET GLOBAL innodb_file_per_table=ON;
ALTER TABLE t1 ADD COLUMN e1 INT, ALGORITHM=INPLACE;
ERROR HY000: Tablespace for table 'test/t1' exists. Please DISCARD the tablespace before IMPORT.
ALTER TABLE t1 ADD COLUMN e2 INT, ALGORITHM=COPY;
ERROR HY000: Error on rename of 'OLD_FILE_NAME' to 'NEW_FILE_NAME' (errno: 184 "Tablespace already exists")
#
# Delete the blocking file called MYSQLD_DATADIR/test/t1.ibd
# Move t1 to file-per-table using ALGORITHM=INPLACE with no blocking t1.ibd.
#
ALTER TABLE t1 ADD COLUMN e INT, ALGORITHM=INPLACE;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
  `b` char(20) DEFAULT NULL,
  `c` int(11) DEFAULT NULL,
  `d` int(11) DEFAULT NULL,
  `e` int(11) DEFAULT NULL,
  UNIQUE KEY `a` (`a`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=latin1
SELECT name, space=0 FROM information_schema.innodb_sys_tables WHERE name = 'test/t1';
name	space=0
test/t1	0
DROP TABLE t1;
#
# Rename t2.ibd to t1.ibd.
#
ALTER TABLE t2 RENAME TO t1;
SELECT name, space=0 FROM information_schema.innodb_sys_tables WHERE name = 'test/t1';
name	space=0
test/t1	0
SELECT * from t1;
a	b
1	one
2	two
3	three
DROP TABLE t1;