mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-10-19 15:01:03 +00:00
18 lines
777 B
SQL
18 lines
777 B
SQL
SET distributed_optimize_skip_select_on_unused_shards = 1;
|
|
|
|
DROP TABLE IF EXISTS test.mergetree;
|
|
DROP TABLE IF EXISTS test.distributed;
|
|
|
|
CREATE TABLE test.mergetree (a Int64, b Int64) ENGINE = MergeTree ORDER BY (a, b);
|
|
CREATE TABLE test.distributed AS test.mergetree ENGINE = Distributed(test_unavailable_shard, test, mergetree, jumpConsistentHash(a+b, 2));
|
|
|
|
INSERT INTO test.mergetree VALUES (0, 0);
|
|
INSERT INTO test.mergetree VALUES (1, 0);
|
|
INSERT INTO test.mergetree VALUES (0, 1);
|
|
INSERT INTO test.mergetree VALUES (1, 1);
|
|
|
|
/* without setting, quering of the second shard will fail because it isn't available */
|
|
|
|
SELECT jumpConsistentHash(a+b, 2) FROM test.distributed
|
|
WHERE (a+b > 0 AND a = 0 AND b = 0) OR (a IN (0, 1) AND b IN (0, 1)) OR ((a = 1 OR a = 1) AND b = 2);
|