Bitmap可以删除数据吗

CREATE TABLE `test_bitmap` (
  `fd1` int(11) NULL COMMENT "",
  `fd2` bitmap BITMAP_UNION NULL COMMENT ""
) ENGINE=OLAP
AGGREGATE KEY(`fd1`)
COMMENT "OLAP"
DISTRIBUTED BY HASH(`fd1`) BUCKETS 2;
insert into test_bitmap (fd1, fd2)
values (1001, to_bitmap(1000))
, (1001, to_bitmap(2000));

可以在bitmap里面删除2000的值吗?