mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-16 11:22:12 +00:00
21 lines
758 B
SQL
21 lines
758 B
SQL
DROP TABLE IF EXISTS optimize_final;
|
|
|
|
SET optimize_skip_merged_partitions=1;
|
|
|
|
CREATE TABLE optimize_final(t DateTime, x Int32) ENGINE = MergeTree() PARTITION BY toYYYYMM(t) ORDER BY x;
|
|
|
|
INSERT INTO optimize_final SELECT toDate('2020-01-01'), number FROM numbers(5);
|
|
INSERT INTO optimize_final SELECT toDate('2020-01-01'), number + 5 FROM numbers(5);
|
|
|
|
OPTIMIZE TABLE optimize_final FINAL;
|
|
|
|
INSERT INTO optimize_final SELECT toDate('2000-01-01'), number FROM numbers(5);
|
|
INSERT INTO optimize_final SELECT toDate('2000-01-01'), number + 5 FROM numbers(5);
|
|
|
|
OPTIMIZE TABLE optimize_final FINAL;
|
|
|
|
SELECT table, partition, active, level from system.parts where table = 'optimize_final' and database = currentDatabase() and active = 1;
|
|
|
|
DROP TABLE optimize_final;
|
|
|