set global innodb_compression_level = 3;
CREATE TABLE t1(c1 INT, b CHAR(20)) ENGINE=INNODB PAGE_COMPRESSED=1;
INSERT INTO t1 VALUES(1, 'mariadb');
# xtrabackup backup
# xtrabackup prepare
FOUND 1 /innodb_compression_level=3/ in backup-my.cnf
DELETE FROM t1;
ALTER TABLE t1 DISCARD TABLESPACE;
ALTER TABLE t1 IMPORT TABLESPACE;
SELECT * FROM t1;
c1	b
1	mariadb
DROP TABLE t1;
set global innodb_compression_level = default;