DROP TABLE IF EXISTS replicated_table_for_alter1; DROP TABLE IF EXISTS replicated_table_for_alter2; SET replication_alter_partitions_sync = 2; CREATE TABLE replicated_table_for_alter1 ( id UInt64, Data String ) ENGINE = ReplicatedMergeTree('/clickhouse/tables/replicated_table_for_alter', '1') ORDER BY id; CREATE TABLE replicated_table_for_alter2 ( id UInt64, Data String ) ENGINE = ReplicatedMergeTree('/clickhouse/tables/replicated_table_for_alter', '2') ORDER BY id; SHOW CREATE TABLE replicated_table_for_alter1; ALTER TABLE replicated_table_for_alter1 MODIFY SETTING index_granularity = 4096; -- { serverError 472 } SHOW CREATE TABLE replicated_table_for_alter1; INSERT INTO replicated_table_for_alter2 VALUES (1, '1'), (2, '2'); SYSTEM SYNC REPLICA replicated_table_for_alter1; ALTER TABLE replicated_table_for_alter1 MODIFY SETTING use_minimalistic_part_header_in_zookeeper = 1; INSERT INTO replicated_table_for_alter1 VALUES (3, '3'), (4, '4'); SYSTEM SYNC REPLICA replicated_table_for_alter2; SELECT COUNT() FROM replicated_table_for_alter1; SELECT COUNT() FROM replicated_table_for_alter2; DETACH TABLE replicated_table_for_alter2; ATTACH TABLE replicated_table_for_alter2; DETACH TABLE replicated_table_for_alter1; ATTACH TABLE replicated_table_for_alter1; SELECT COUNT() FROM replicated_table_for_alter1; SELECT COUNT() FROM replicated_table_for_alter2; ALTER TABLE replicated_table_for_alter2 MODIFY SETTING parts_to_throw_insert = 1, parts_to_delay_insert = 1; INSERT INTO replicated_table_for_alter2 VALUES (3, '1'), (4, '2'); -- { serverError 252 } INSERT INTO replicated_table_for_alter1 VALUES (5, '5'), (6, '6'); SYSTEM SYNC REPLICA replicated_table_for_alter2; SELECT COUNT() FROM replicated_table_for_alter1; SELECT COUNT() FROM replicated_table_for_alter2; DETACH TABLE replicated_table_for_alter2; ATTACH TABLE replicated_table_for_alter2; DETACH TABLE replicated_table_for_alter1; ATTACH TABLE replicated_table_for_alter1; SHOW CREATE TABLE replicated_table_for_alter1; SHOW CREATE TABLE replicated_table_for_alter2; ALTER TABLE replicated_table_for_alter1 ADD COLUMN Data2 UInt64, MODIFY SETTING check_delay_period=5, check_delay_period=10, check_delay_period=15; SHOW CREATE TABLE replicated_table_for_alter1; SHOW CREATE TABLE replicated_table_for_alter2; DROP TABLE IF EXISTS replicated_table_for_alter2; DROP TABLE IF EXISTS replicated_table_for_alter1;