mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-01 20:12:02 +00:00
29 lines
584 B
SQL
29 lines
584 B
SQL
DROP TABLE IF EXISTS ttl_table;
|
|
|
|
CREATE TABLE ttl_table
|
|
(
|
|
EventDate Date,
|
|
Longitude Float64 TTL EventDate + toIntervalWeek(2)
|
|
)
|
|
ENGINE = MergeTree()
|
|
ORDER BY EventDate
|
|
SETTINGS vertical_merge_algorithm_min_rows_to_activate=1, vertical_merge_algorithm_min_columns_to_activate=1;
|
|
|
|
SYSTEM STOP MERGES ttl_table;
|
|
|
|
INSERT INTO ttl_table VALUES(toDate('2020-10-01'), 144);
|
|
|
|
SELECT * FROM ttl_table;
|
|
|
|
SYSTEM START MERGES ttl_table;
|
|
|
|
OPTIMIZE TABLE ttl_table FINAL;
|
|
|
|
SELECT * FROM ttl_table;
|
|
|
|
OPTIMIZE TABLE ttl_table FINAL;
|
|
|
|
SELECT * FROM ttl_table;
|
|
|
|
DROP TABLE IF EXISTS ttl_table;
|