DROP TABLE IF EXISTS t_sparse_reload;

CREATE TABLE t_sparse_reload (id UInt64, v UInt64)
ENGINE = MergeTree ORDER BY id
SETTINGS ratio_of_defaults_for_sparse_serialization = 0.95;

INSERT INTO t_sparse_reload SELECT number, 0 FROM numbers(100000);

SELECT count() FROM t_sparse_reload WHERE NOT ignore(*);

ALTER TABLE t_sparse_reload MODIFY SETTING ratio_of_defaults_for_sparse_serialization = 1.0;

DETACH TABLE t_sparse_reload;
ATTACH TABLE t_sparse_reload;

SELECT count() FROM t_sparse_reload WHERE NOT ignore(*);

DROP TABLE t_sparse_reload;