DROP TABLE IF EXISTS test.deduplication_by_partition; CREATE TABLE test.deduplication_by_partition(d Date, x UInt32) ENGINE = ReplicatedMergeTree('/clickhouse/tables/test/deduplication_by_partition', 'r1', d, x, 8192); INSERT INTO test.deduplication_by_partition VALUES ('2000-01-01', 1); INSERT INTO test.deduplication_by_partition VALUES ('2000-01-01', 2), ('2000-01-01', 3); INSERT INTO test.deduplication_by_partition VALUES ('2000-01-01', 1); INSERT INTO test.deduplication_by_partition VALUES ('2000-01-01', 2), ('2000-01-01', 3); INSERT INTO test.deduplication_by_partition VALUES ('2000-02-01', 3), ('2000-02-01', 4), ('2000-02-01', 5); INSERT INTO test.deduplication_by_partition VALUES ('2000-02-01', 3), ('2000-02-01', 4), ('2000-02-01', 5); SELECT '*** Before DROP PARTITION ***'; SELECT * FROM test.deduplication_by_partition ORDER BY d, x; ALTER TABLE test.deduplication_by_partition DROP PARTITION 200001; SELECT '*** After DROP PARTITION ***'; SELECT * FROM test.deduplication_by_partition ORDER BY d, x; INSERT INTO test.deduplication_by_partition VALUES ('2000-01-01', 1); INSERT INTO test.deduplication_by_partition VALUES ('2000-01-01', 1); INSERT INTO test.deduplication_by_partition VALUES ('2000-01-01', 2), ('2000-01-01', 3); INSERT INTO test.deduplication_by_partition VALUES ('2000-01-01', 2), ('2000-01-01', 3); INSERT INTO test.deduplication_by_partition VALUES ('2000-01-01', 4); INSERT INTO test.deduplication_by_partition VALUES ('2000-02-01', 3), ('2000-02-01', 4), ('2000-02-01', 5); INSERT INTO test.deduplication_by_partition VALUES ('2000-02-01', 6), ('2000-02-01', 7); SELECT '*** After INSERT ***'; SELECT * FROM test.deduplication_by_partition ORDER BY d, x; DROP TABLE test.deduplication_by_partition;