--- See also tests/queries/0_stateless/01581_deduplicate_by_columns_local.sql --- replicated case -- Just in case if previous tests run left some stuff behind. DROP TABLE IF EXISTS replicated_deduplicate_by_columns_r1 SYNC; DROP TABLE IF EXISTS replicated_deduplicate_by_columns_r2 SYNC; SET replication_alter_partitions_sync = 2; -- IRL insert_replica_id were filled from hostname CREATE TABLE IF NOT EXISTS replicated_deduplicate_by_columns_r1 ( id Int32, val UInt32, unique_value UInt64 MATERIALIZED rowNumberInBlock() ) ENGINE=ReplicatedMergeTree('/clickhouse/tables/test_01581/replicated_deduplicate', 'r1') ORDER BY id; CREATE TABLE IF NOT EXISTS replicated_deduplicate_by_columns_r2 ( id Int32, val UInt32, unique_value UInt64 MATERIALIZED rowNumberInBlock() ) ENGINE=ReplicatedMergeTree('/clickhouse/tables/test_01581/replicated_deduplicate', 'r2') ORDER BY id; -- insert some data, 2 records: (3, 1003), (4, 1004) are duplicated and have difference in unique_value / insert_replica_id -- (1, 1001), (5, 2005) has full duplicates INSERT INTO replicated_deduplicate_by_columns_r1 VALUES (1, 1001), (1, 1001), (2, 1002), (3, 1003), (4, 1004), (1, 2001), (9, 1002); INSERT INTO replicated_deduplicate_by_columns_r2 VALUES (1, 1001), (2, 2002), (3, 1003), (4, 1004), (5, 2005), (5, 2005); -- make sure that all data is present on all replicas SYSTEM SYNC REPLICA replicated_deduplicate_by_columns_r2; SYSTEM SYNC REPLICA replicated_deduplicate_by_columns_r1; SELECT 'check that we have a data'; SELECT 'r1', id, val, count(), uniqExact(unique_value) FROM replicated_deduplicate_by_columns_r1 GROUP BY id, val ORDER BY id, val; SELECT 'r2', id, val, count(), uniqExact(unique_value) FROM replicated_deduplicate_by_columns_r2 GROUP BY id, val ORDER BY id, val; -- NOTE: here and below we need FINAL to force deduplication in such a small set of data in only 1 part. -- that should remove full duplicates OPTIMIZE TABLE replicated_deduplicate_by_columns_r1 FINAL DEDUPLICATE; SELECT 'after old OPTIMIZE DEDUPLICATE'; SELECT 'r1', id, val, count(), uniqExact(unique_value) FROM replicated_deduplicate_by_columns_r1 GROUP BY id, val ORDER BY id, val; SELECT 'r2', id, val, count(), uniqExact(unique_value) FROM replicated_deduplicate_by_columns_r2 GROUP BY id, val ORDER BY id, val; OPTIMIZE TABLE replicated_deduplicate_by_columns_r1 FINAL DEDUPLICATE BY id, val; OPTIMIZE TABLE replicated_deduplicate_by_columns_r1 FINAL DEDUPLICATE BY COLUMNS('[id, val]'); OPTIMIZE TABLE replicated_deduplicate_by_columns_r1 FINAL DEDUPLICATE BY COLUMNS('[i]') EXCEPT(unique_value); SELECT 'check data again after multiple deduplications with new syntax'; SELECT 'r1', id, val, count(), uniqExact(unique_value) FROM replicated_deduplicate_by_columns_r1 GROUP BY id, val ORDER BY id, val; SELECT 'r2', id, val, count(), uniqExact(unique_value) FROM replicated_deduplicate_by_columns_r2 GROUP BY id, val ORDER BY id, val; -- cleanup the mess DROP TABLE replicated_deduplicate_by_columns_r1; DROP TABLE replicated_deduplicate_by_columns_r2;