EXCHANGE PARTITION does not work with compressed columns

CREATE TABLE t1 (i int, a VARCHAR(1000) COMPRESSED)

	PARTITION BY RANGE COLUMNS (a)(

    PARTITION p0 VALUES LESS THAN ('g'),

    PARTITION p1 VALUES LESS THAN ('m'),

    PARTITION p2 VALUES LESS THAN ('t'),

    PARTITION p3 VALUES LESS THAN ('w'));

 CREATE TABLE t2 like t1;

 ALTER TABLE t2  REMOVE PARTITIONING;

 ALTER TABLE t1 EXCHANGE PARTITION p1 WITH TABLE t2;