DROP TABLE IF EXISTS t_sparse_02235;

CREATE TABLE t_sparse_02235 (a UInt8) ENGINE = MergeTree ORDER BY tuple()
SETTINGS ratio_of_defaults_for_sparse_serialization = 0.9;

SYSTEM STOP MERGES t_sparse_02235;

INSERT INTO t_sparse_02235 SELECT 1 FROM numbers(1000);
INSERT INTO t_sparse_02235 SELECT 0 FROM numbers(1000);

SELECT name, column, serialization_kind FROM system.parts_columns
WHERE database = currentDatabase() AND table = 't_sparse_02235'
ORDER BY name, column;

CHECK TABLE t_sparse_02235 SETTINGS check_query_single_value_result = 0, max_threads = 1;

DROP TABLE t_sparse_02235;