SELECT '*** Replicated with sampling ***'; DROP TABLE IF EXISTS test.replicated_with_sampling; CREATE TABLE test.replicated_with_sampling(x UInt8) ENGINE ReplicatedMergeTree('/clickhouse/tables/test/replicated_with_sampling', 'r1') ORDER BY x SAMPLE BY x; INSERT INTO test.replicated_with_sampling VALUES (1), (128); SELECT sum(x) FROM test.replicated_with_sampling SAMPLE 1/2; DROP TABLE test.replicated_with_sampling; SELECT '*** Replacing with implicit version ***'; DROP TABLE IF EXISTS test.replacing; CREATE TABLE test.replacing(d Date, x UInt32, s String) ENGINE = ReplacingMergeTree ORDER BY x PARTITION BY d; INSERT INTO test.replacing VALUES ('2017-10-23', 1, 'a'); INSERT INTO test.replacing VALUES ('2017-10-23', 1, 'b'); INSERT INTO test.replacing VALUES ('2017-10-23', 1, 'c'); OPTIMIZE TABLE test.replacing PARTITION '2017-10-23' FINAL; SELECT * FROM test.replacing; DROP TABLE test.replacing; SELECT '*** Replicated Collapsing ***'; DROP TABLE IF EXISTS test.replicated_collapsing; CREATE TABLE test.replicated_collapsing(d Date, x UInt32, sign Int8) ENGINE = ReplicatedCollapsingMergeTree('/clickhouse/tables/test/replicated_collapsing', 'r1', sign) PARTITION BY toYYYYMM(d) ORDER BY d; INSERT INTO test.replicated_collapsing VALUES ('2017-10-23', 1, 1); INSERT INTO test.replicated_collapsing VALUES ('2017-10-23', 1, -1), ('2017-10-23', 2, 1); SYSTEM SYNC REPLICA test.replicated_collapsing; OPTIMIZE TABLE test.replicated_collapsing PARTITION 201710 FINAL; SELECT * FROM test.replicated_collapsing; DROP TABLE test.replicated_collapsing; SELECT '*** Replicated VersionedCollapsing ***'; DROP TABLE IF EXISTS test.replicated_versioned_collapsing; CREATE TABLE test.replicated_versioned_collapsing(d Date, x UInt32, sign Int8, version UInt8) ENGINE = ReplicatedVersionedCollapsingMergeTree('/clickhouse/tables/test/replicated_versioned_collapsing', 'r1', sign, version) PARTITION BY toYYYYMM(d) ORDER BY (d, version); INSERT INTO test.replicated_versioned_collapsing VALUES ('2017-10-23', 1, 1, 0); INSERT INTO test.replicated_versioned_collapsing VALUES ('2017-10-23', 1, -1, 0), ('2017-10-23', 2, 1, 0); INSERT INTO test.replicated_versioned_collapsing VALUES ('2017-10-23', 1, -1, 1), ('2017-10-23', 2, 1, 2); SYSTEM SYNC REPLICA test.replicated_versioned_collapsing; OPTIMIZE TABLE test.replicated_versioned_collapsing PARTITION 201710 FINAL; SELECT * FROM test.replicated_versioned_collapsing; DROP TABLE test.replicated_versioned_collapsing; SELECT '*** Table definition with SETTINGS ***'; DROP TABLE IF EXISTS test.with_settings; CREATE TABLE test.with_settings(x UInt32) ENGINE ReplicatedMergeTree('/clickhouse/tables/test/with_settings', 'r1') ORDER BY x SETTINGS replicated_can_become_leader = 0; SELECT sleep(1); -- If replicated_can_become_leader were true, this replica would become the leader after 1 second. SELECT is_leader FROM system.replicas WHERE database = 'test' AND table = 'with_settings'; DROP TABLE test.with_settings;