ClickHouse/tests/queries/0_stateless/02235_check_table_sparse_serialization.sql

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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;
SET check_query_single_value_result = 0;
CHECK TABLE t_sparse_02235;
DROP TABLE t_sparse_02235;