set default_storage_engine=innodb;
#
# MDEV-18295 IMPORT TABLESPACE fails with instant-altered tables
#
create table t2 (x int, z int default 41);
alter table t2 discard tablespace;
create table t1 (x int);
insert into t1 values (1);
alter table t1 add z int default 42, algorithm instant;
select * from t1;
x	z
1	42
flush tables t1 for export;
unlock tables;
# The metadata has to be updated to instant ADD COLUMN.
alter table t2 import tablespace;
select * from t2;
x	z
1	42
insert into t2 set x=2;
select * from t2;
x	z
1	42
2	41
alter table t1 discard tablespace;
flush tables t2 for export;
unlock tables;
# Both the metadata and the data file used instant ADD COLUMN.
alter table t1 import tablespace;
select * from t1;
x	z
1	42
2	41
drop table t2;
create table t2 select * from t1;
alter table t1 discard tablespace;
flush tables t2 for export;
unlock tables;
# The instant ADD COLUMN has to be removed from the metadata.
alter table t1 import tablespace;
select * from t1;
x	z
1	42
2	41
# Remove metadata for instant DROP COLUMN, then import
alter table t1 drop x, add column x int first, algorithm instant;
select * from t1;
x	z
NULL	42
NULL	41
alter table t1 discard tablespace;
alter table t1 import tablespace;
select * from t1;
x	z
1	42
2	41
# Import a data file that contains instant DROP COLUMN metadata
alter table t2 drop x;
alter table t1 drop x, force;
alter table t1 discard tablespace;
flush tables t2 for export;
unlock tables;
alter table t1 import tablespace;
select * from t1;
z
42
41
drop table t2;
drop table t1;
CREATE TABLE t1 (id INT PRIMARY KEY AUTO_INCREMENT, i1 INT) ENGINE=INNODB;
CREATE TABLE t2 (id INT PRIMARY KEY AUTO_INCREMENT, i1 INT, i2 INT) ENGINE=INNODB;
ALTER TABLE t2 DROP COLUMN i2, ALGORITHM=INSTANT;
ALTER TABLE t2 DISCARD TABLESPACE;
FLUSH TABLE t1 FOR EXPORT;
UNLOCK TABLES;
ALTER TABLE t2 IMPORT TABLESPACE;
DROP TABLE t2, t1;
CREATE TABLE t1 (id INT PRIMARY KEY, i2 INT, i1 INT) ENGINE=INNODB;
INSERT INTO t1 VALUES (1, 1, 1);
ALTER TABLE t1 MODIFY COLUMN i2 INT AFTER i1, ALGORITHM=INSTANT;
CREATE TABLE t2 LIKE t1;
ALTER TABLE t2 DISCARD TABLESPACE;
FLUSH TABLE t1 FOR EXPORT;
UNLOCK TABLES;
ALTER TABLE t2 IMPORT TABLESPACE;
SELECT * FROM t2;
id	i1	i2
1	1	1
DROP TABLE t2, t1;
CREATE TABLE t1 (id INT PRIMARY KEY, i2 INT, i1 INT) ENGINE=INNODB;
INSERT INTO t1 VALUES (1, 1, 1);
ALTER TABLE t1 DROP COLUMN i2, ALGORITHM=INSTANT;
CREATE TABLE t2 LIKE t1;
ALTER TABLE t2 DISCARD TABLESPACE;
FLUSH TABLE t1 FOR EXPORT;
UNLOCK TABLES;
ALTER TABLE t2 IMPORT TABLESPACE;
SELECT * FROM t2;
id	i1
1	1
DROP TABLE t2, t1;
CREATE TABLE t1 (id INT PRIMARY KEY, i2 INT, i1 INT)
ENGINE=INNODB PAGE_COMPRESSED=1;
INSERT INTO t1 VALUES (1, 1, 1);
ALTER TABLE t1 DROP COLUMN i2, ALGORITHM=INSTANT;
CREATE TABLE t2 LIKE t1;
ALTER TABLE t2 DISCARD TABLESPACE;
FLUSH TABLE t1 FOR EXPORT;
UNLOCK TABLES;
ALTER TABLE t2 IMPORT TABLESPACE;
DROP TABLE t2, t1;
CREATE TABLE t1 (id INT PRIMARY KEY AUTO_INCREMENT, i2 INT, i1 INT) ENGINE=INNODB;
INSERT INTO t1 (i2) SELECT 4 FROM seq_1_to_1024;
ALTER TABLE t1 DROP COLUMN i2, ALGORITHM=INSTANT;
CREATE TABLE t2 LIKE t1;
ALTER TABLE t2 DISCARD TABLESPACE;
FLUSH TABLE t1 FOR EXPORT;
UNLOCK TABLES;
ALTER TABLE t2 IMPORT TABLESPACE;
DROP TABLE t2, t1;