Comment 4 for bug 1657941

Here is a reduced test case

CREATE TABLE t1(
  id INT UNSIGNED NOT NULL,
  dttm DATETIME NOT NULL,
  PRIMARY KEY(id, dttm)
) ENGINE=InnoDB
PARTITION BY RANGE COLUMNS(dttm) (
  PARTITION pf_201612 VALUES LESS THAN ('20170101') ENGINE=InnoDB
);

SELECT * FROM t1 WHERE dttm > '2017-01-19' ORDER BY id DESC;