DROP TABLE IF EXISTS test.summing_merge_tree; CREATE TABLE test.summing_merge_tree (d Date, a String, x UInt32, y UInt64, z Float64) ENGINE = SummingMergeTree(d, a, 8192); INSERT INTO test.summing_merge_tree VALUES ('2000-01-01', 'Hello', 1, 2, 3); INSERT INTO test.summing_merge_tree VALUES ('2000-01-01', 'Hello', 4, 5, 6); INSERT INTO test.summing_merge_tree VALUES ('2000-01-01', 'Goodbye', 1, 2, 3); OPTIMIZE TABLE test.summing_merge_tree; OPTIMIZE TABLE test.summing_merge_tree; OPTIMIZE TABLE test.summing_merge_tree; SELECT * FROM test.summing_merge_tree ORDER BY d, a, x, y, z; DROP TABLE test.summing_merge_tree; CREATE TABLE test.summing_merge_tree (d Date, a String, x UInt32, y UInt64, z Float64) ENGINE = SummingMergeTree(d, a, 8192, (y, z)); INSERT INTO test.summing_merge_tree VALUES ('2000-01-01', 'Hello', 1, 2, 3); INSERT INTO test.summing_merge_tree VALUES ('2000-01-01', 'Hello', 4, 5, 6); INSERT INTO test.summing_merge_tree VALUES ('2000-01-01', 'Goodbye', 1, 2, 3); OPTIMIZE TABLE test.summing_merge_tree; OPTIMIZE TABLE test.summing_merge_tree; OPTIMIZE TABLE test.summing_merge_tree; SELECT * FROM test.summing_merge_tree ORDER BY d, a, x, y, z; DROP TABLE test.summing_merge_tree;