SET @save_debug=@@GLOBAL.INNODB_LIMIT_OPTIMISTIC_INSERT_DEBUG; SET @save_scrub=@@GLOBAL.INNODB_IMMEDIATE_SCRUB_DATA_UNCOMPRESSED; SET GLOBAL INNODB_IMMEDIATE_SCRUB_DATA_UNCOMPRESSED=1; SET GLOBAL INNODB_LIMIT_OPTIMISTIC_INSERT_DEBUG=2; CREATE TABLE t1(f1 INT AUTO_INCREMENT PRIMARY KEY, f2 VARCHAR(256) GENERATED ALWAYS as('repairman'), INDEX idx(f2))ENGINE= InnoDB STATS_PERSISTENT=0; INSERT INTO t1(f1) SELECT seq FROM seq_1_to_50; FLUSH TABLE t1 FOR EXPORT; FOUND 108 /repairman/ in t1.ibd UNLOCK TABLES; ALTER TABLE t1 DROP INDEX idx; InnoDB 0 transactions not purged FLUSH TABLE t1 FOR EXPORT; NOT FOUND /repairman/ in t1.ibd UNLOCK TABLES; DROP TABLE t1; SET GLOBAL INNODB_LIMIT_OPTIMISTIC_INSERT_DEBUG=@save_debug; SET GLOBAL INNODB_IMMEDIATE_SCRUB_DATA_UNCOMPRESSED=@save_scrub;