mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-10 01:25:21 +00:00
46 lines
1.7 KiB
SQL
46 lines
1.7 KiB
SQL
DROP TABLE IF EXISTS lwd_test_02521;
|
|
|
|
CREATE TABLE lwd_test_02521 (id UInt64, value String, event_time DateTime)
|
|
ENGINE MergeTree()
|
|
ORDER BY id
|
|
SETTINGS min_bytes_for_wide_part = 0;
|
|
|
|
INSERT INTO lwd_test_02521 SELECT number, randomString(10), now() - INTERVAL 2 MONTH FROM numbers(50000);
|
|
INSERT INTO lwd_test_02521 SELECT number, randomString(10), now() FROM numbers(50000);
|
|
|
|
OPTIMIZE TABLE lwd_test_02521 FINAL SETTINGS mutations_sync = 1;
|
|
|
|
SET mutations_sync=1;
|
|
SET allow_experimental_lightweight_delete = 1;
|
|
|
|
-- { echoOn }
|
|
SELECT 'Rows in parts', SUM(rows) FROM system.parts WHERE database = currentDatabase() AND table = 'lwd_test_02521' AND active;
|
|
SELECT 'Count', count() FROM lwd_test_02521;
|
|
|
|
|
|
DELETE FROM lwd_test_02521 WHERE id < 25000;
|
|
|
|
SELECT 'Rows in parts', SUM(rows) FROM system.parts WHERE database = currentDatabase() AND table = 'lwd_test_02521' AND active;
|
|
SELECT 'Count', count() FROM lwd_test_02521;
|
|
|
|
|
|
ALTER TABLE lwd_test_02521 MODIFY TTL event_time + INTERVAL 1 MONTH SETTINGS mutations_sync = 1;
|
|
|
|
SELECT 'Rows in parts', SUM(rows) FROM system.parts WHERE database = currentDatabase() AND table = 'lwd_test_02521' AND active;
|
|
SELECT 'Count', count() FROM lwd_test_02521;
|
|
|
|
|
|
ALTER TABLE lwd_test_02521 DELETE WHERE id >= 40000 SETTINGS mutations_sync = 1;
|
|
|
|
SELECT 'Rows in parts', SUM(rows) FROM system.parts WHERE database = currentDatabase() AND table = 'lwd_test_02521' AND active;
|
|
SELECT 'Count', count() FROM lwd_test_02521;
|
|
|
|
|
|
OPTIMIZE TABLE lwd_test_02521 FINAL SETTINGS mutations_sync = 1;
|
|
|
|
SELECT 'Rows in parts', SUM(rows) FROM system.parts WHERE database = currentDatabase() AND table = 'lwd_test_02521' AND active;
|
|
SELECT 'Count', count() FROM lwd_test_02521;
|
|
|
|
-- { echoOff }
|
|
|
|
DROP TABLE lwd_test_02521; |