SET GLOBAL innodb_encrypt_tables = ON; SET GLOBAL innodb_encryption_threads = 4; CREATE TABLE t1 (id INT PRIMARY KEY AUTO_INCREMENT, i2 INT, i1 INT) ENGINE=INNODB ENCRYPTED=YES ENCRYPTION_KEY_ID=4; 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; CREATE TABLE t1 (id INT PRIMARY KEY AUTO_INCREMENT, i2 INT, i1 INT) ENGINE=INNODB ENCRYPTED=YES ENCRYPTION_KEY_ID=4 PAGE_COMPRESSED=1; 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; SET GLOBAL innodb_encrypt_tables = OFF; SET GLOBAL innodb_encryption_threads = 0;