Interrupted SELECT fails with 1030: 'Got error 1 "Operation not permitted" from storage engine MyISAM'

CREATE TABLE t (i INT AUTO_INCREMENT, c VARCHAR(1), KEY(i), KEY(c,i)) ENGINE=MyISAM;

INSERT INTO t (c) VALUES ('a'),('b'),('c'),('d');

INSERT INTO t (c) SELECT c FROM t;

INSERT INTO t (c) SELECT c FROM t;

INSERT INTO t (c) SELECT c FROM t;

INSERT INTO t (c) SELECT c FROM t;

INSERT INTO t (c) SELECT c FROM t;

INSERT INTO t (c) SELECT c FROM t;

INSERT INTO t (c) SELECT c FROM t;

INSERT INTO t (c) SELECT c FROM t;

--let $conid = `SELECT CONNECTION_ID()`

eval CREATE EVENT ev ON SCHEDULE EVERY 1 SECOND DO KILL QUERY $conid;

SET GLOBAL event_scheduler = ON;

--let $run = 20

--disable_result_log

while ($run)

{

  --error ER_QUERY_INTERRUPTED

  SELECT 1 FROM t AS alias1, t AS alias2, t AS alias3

  WHERE alias1.c = alias2.c OR alias1.i <= 1

  ;

  --dec $run

}

DROP TABLE t;

SET GLOBAL event_scheduler = DEFAULT;

DROP EVENT ev;

mysqltest: At line 29: query 'SELECT 1 FROM t AS alias1, t AS alias2, t AS alias3

WHERE alias1.c = alias2.c OR alias1.i <= 1

' failed with wrong errno 1030: 'Got error 1 "Operation not permitted" from storage engine MyISAM', instead of 1317...

commit 2cfc450bf78c2d951729d1a0e8f731c0d987b1d5

Author: Igor Babaev <igor@askmonty.org>

Date:   Tue Feb 9 12:35:59 2016 -0800

    This is the consolidated patch for mdev-8646:

    "Re-factor the code for post-join operations".