DROP TABLE IF EXISTS join_table_mutation; CREATE TABLE join_table_mutation(id Int32, name String) ENGINE = Join(ANY, LEFT, id); INSERT INTO join_table_mutation select number, toString(number) from numbers(100); SELECT count(1) FROM join_table_mutation; SELECT name FROM join_table_mutation WHERE id = 10; ALTER TABLE join_table_mutation DELETE WHERE id = 10; SELECT count(1) FROM join_table_mutation; SELECT name FROM join_table_mutation WHERE id = 10; INSERT INTO join_table_mutation VALUES (10, 'm10'); SELECT name FROM join_table_mutation WHERE id = 10; ALTER TABLE join_table_mutation DELETE WHERE id % 2 = 0; SELECT count(1) FROM join_table_mutation;