mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-27 01:51:59 +00:00
39 lines
1.5 KiB
SQL
39 lines
1.5 KiB
SQL
SET send_logs_level = 'none';
|
|
|
|
DROP TABLE IF EXISTS test_00808;
|
|
CREATE TABLE test_00808(date Date, id Int8, name String, value Int64, sign Int8) ENGINE = CollapsingMergeTree(sign) ORDER BY (id, date);
|
|
|
|
INSERT INTO test_00808 VALUES('2000-01-01', 1, 'test string 1', 1, 1);
|
|
INSERT INTO test_00808 VALUES('2000-01-01', 2, 'test string 2', 2, 1);
|
|
|
|
SET enable_optimize_predicate_expression = 1;
|
|
|
|
SELECT '-------ENABLE OPTIMIZE PREDICATE-------';
|
|
SELECT * FROM (SELECT * FROM test_00808 FINAL) WHERE id = 1;
|
|
SELECT * FROM (SELECT * FROM test_00808 LIMIT 1) WHERE id = 1;
|
|
SELECT * FROM (SELECT id FROM test_00808 GROUP BY id LIMIT 1 BY id) WHERE id = 1;
|
|
|
|
SET force_primary_key = 1;
|
|
|
|
SELECT '-------FORCE PRIMARY KEY-------';
|
|
SELECT * FROM (SELECT * FROM test_00808 LIMIT 1) WHERE id = 1; -- { serverError 277 }
|
|
SELECT * FROM (SELECT id FROM test_00808 GROUP BY id LIMIT 1 BY id) WHERE id = 1; -- { serverError 277 }
|
|
|
|
SELECT '-------CHECK STATEFUL FUNCTIONS-------';
|
|
SELECT n, z, changed FROM (
|
|
SELECT n, z, runningDifferenceStartingWithFirstValue(n) AS changed FROM (
|
|
SELECT ts, n,z FROM system.one ARRAY JOIN [1,3,4,5,6] AS ts,
|
|
[1,2,2,2,1] AS n, ['a', 'a', 'b', 'a', 'b'] AS z
|
|
ORDER BY n, ts DESC
|
|
)
|
|
) WHERE changed = 0;
|
|
|
|
|
|
SELECT arrayJoin(arrayMap(x -> x, arraySort(groupArray((ts, n))))) AS k FROM (
|
|
SELECT ts, n, z FROM system.one ARRAY JOIN [1, 3, 4, 5, 6] AS ts, [1, 2, 2, 2, 1] AS n, ['a', 'a', 'b', 'a', 'b'] AS z
|
|
ORDER BY n ASC, ts DESC
|
|
) WHERE z = 'a' GROUP BY z;
|
|
|
|
|
|
DROP TABLE IF EXISTS test_00808;
|