DROP TABLE IF EXISTS tmp; SET mutations_sync = 2; CREATE TABLE tmp (x Int64) ENGINE = MergeTree() ORDER BY tuple() PARTITION BY tuple(); INSERT INTO tmp SELECT * FROM system.numbers LIMIT 20; ALTER TABLE tmp MATERIALIZE COLUMN x; -- { serverError 36 } ALTER TABLE tmp ADD COLUMN s String DEFAULT toString(x); SELECT groupArray(x), groupArray(s) FROM tmp; ALTER TABLE tmp MODIFY COLUMN s String DEFAULT toString(x+1); SELECT groupArray(x), groupArray(s) FROM tmp; ALTER TABLE tmp MATERIALIZE COLUMN s; ALTER TABLE tmp MODIFY COLUMN s String DEFAULT toString(x+2); SELECT groupArray(x), groupArray(s) FROM tmp; ALTER TABLE tmp MATERIALIZE COLUMN s; ALTER TABLE tmp MODIFY COLUMN s String DEFAULT toString(x+3); SELECT groupArray(x), groupArray(s) FROM tmp; ALTER TABLE tmp DROP COLUMN s; ALTER TABLE tmp ADD COLUMN s String MATERIALIZED toString(x); SELECT groupArray(x), groupArray(s) FROM tmp; ALTER TABLE tmp MODIFY COLUMN s String MATERIALIZED toString(x+1); SELECT groupArray(x), groupArray(s) FROM tmp; ALTER TABLE tmp MATERIALIZE COLUMN s; ALTER TABLE tmp MODIFY COLUMN s String MATERIALIZED toString(x+2); SELECT groupArray(x), groupArray(s) FROM tmp; ALTER TABLE tmp MATERIALIZE COLUMN s; ALTER TABLE tmp MODIFY COLUMN s String MATERIALIZED toString(x+3); SELECT groupArray(x), groupArray(s) FROM tmp; ALTER TABLE tmp DROP COLUMN s; DROP TABLE tmp;