# Bug#32948 CREATE TABLE t1 (c1 INT, PRIMARY KEY (c1)) ENGINE=INNODB; CREATE TABLE t2 (c1 INT, PRIMARY KEY (c1), FOREIGN KEY (c1) REFERENCES t1 (c1) ON DELETE CASCADE) ENGINE=INNODB; ALTER TABLE t1 PARTITION BY HASH(c1) PARTITIONS 5; ERROR HY000: Foreign keys are not yet supported in conjunction with partitioning ALTER TABLE t2 PARTITION BY HASH(c1) PARTITIONS 5; ERROR HY000: Foreign keys are not yet supported in conjunction with partitioning ALTER TABLE t1 ENGINE=MyISAM; ERROR HY000: Cannot change table's storage engine because the table participates in a foreign key constraint. DROP TABLE t2; DROP TABLE t1; create table t1 (int_column int, char_column char(5)) PARTITION BY RANGE (int_column) subpartition by key (char_column) subpartitions 2 (PARTITION p1 VALUES LESS THAN (5) ENGINE = InnoDB); alter table t1 ENGINE = MyISAM PARTITION BY RANGE (int_column) subpartition by key (char_column) subpartitions 2 (PARTITION p1 VALUES LESS THAN (5)); ERROR 42000: The storage engine for the table doesn't support native partitioning show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `int_column` int(11) DEFAULT NULL, `char_column` char(5) DEFAULT NULL ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci /*!50100 PARTITION BY RANGE (`int_column`) SUBPARTITION BY KEY (char_column) SUBPARTITIONS 2 (PARTITION p1 VALUES LESS THAN (5) ENGINE = InnoDB) */ drop table t1;