mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-24 08:32:02 +00:00
33 lines
1.3 KiB
SQL
33 lines
1.3 KiB
SQL
SET send_logs_level = 'none';
|
|
|
|
DROP TABLE IF EXISTS test.test;
|
|
CREATE TABLE test.test(date Date, id Int8, name String, value Int64, sign Int8) ENGINE = CollapsingMergeTree(sign) ORDER BY (id, date);
|
|
|
|
INSERT INTO test.test VALUES('2000-01-01', 1, 'test string 1', 1, 1);
|
|
INSERT INTO test.test 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.test FINAL) WHERE id = 1;
|
|
SELECT * FROM (SELECT * FROM test.test LIMIT 1) WHERE id = 1;
|
|
SELECT * FROM (SELECT id FROM test.test GROUP BY id LIMIT 1 BY id) WHERE id = 1;
|
|
|
|
SET force_primary_key = 1;
|
|
|
|
SELECT '-------FORCE PRIMARY KEY-------';
|
|
SELECT * FROM (SELECT * FROM test.test FINAL) WHERE id = 1; -- { serverError 277 }
|
|
SELECT * FROM (SELECT * FROM test.test LIMIT 1) WHERE id = 1; -- { serverError 277 }
|
|
SELECT * FROM (SELECT id FROM test.test 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;
|
|
|
|
DROP TABLE IF EXISTS test.test;
|