CREATE TABLE t1 (a INT NOT NULL, KEY (a)) ENGINE=MEMORY PARTITION BY KEY(a) PARTITIONS 4;
INSERT INTO t1 VALUES (1),(2);
SET debug_dbug="+d,test_pseudo_invisible";
ALTER TABLE t1 REBUILD PARTITION p2;
ERROR HY000: Internal error: Don't to it with test_pseudo_invisible
SET debug_dbug='';
ALTER TABLE t1 REPAIR PARTITION p1,p2,p3;
Table	Op	Msg_type	Msg_text
test.t1	repair	status	OK
Drop table t1;
CREATE TABLE t1 (i INT) PARTITION BY HASH (i) PARTITIONS 3;
SET debug_dbug= "+d,test_pseudo_invisible";
ALTER TABLE t1 COALESCE PARTITION 1;
ERROR HY000: Internal error: Don't to it with test_pseudo_invisible
SET debug_dbug= "";
SELECT * FROM t1;
i
DROP TABLE t1;