ClickHouse/tests/queries/0_stateless/01018_Distributed__shard_num.reference
2023-03-13 12:01:18 +01:00

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-- { echoOn }
-- remote(system.one)
SELECT 'remote(system.one)';
remote(system.one)
SELECT * FROM remote('127.0.0.1', system.one);
0
SELECT * FROM remote('127.0.0.{1,2}', system.one);
0
0
SELECT _shard_num, * FROM remote('127.0.0.1', system.one);
1 0
SELECT _shard_num, * FROM remote('127.0.0.{1,2}', system.one) order by _shard_num;
1 0
2 0
SELECT _shard_num, * FROM remote('127.0.0.{1,2}', system.one) WHERE _shard_num = 1;
1 0
-- dist_1 using test_shard_localhost
SELECT 'dist_1';
dist_1
SELECT _shard_num FROM dist_1 order by _shard_num;
1
1
SELECT _shard_num FROM dist_1 order by _shard_num;
1
1
SELECT _shard_num, key FROM dist_1 order by _shard_num;
1 10
1 20
SELECT key FROM dist_1;
10
20
SELECT _shard_num FROM dist_1 order by _shard_num;
1
1
SELECT _shard_num, key FROM dist_1 order by _shard_num, key;
1 10
1 20
SELECT key FROM dist_1;
10
20
-- dist_2 using test_cluster_two_shards_localhost
SELECT 'dist_2';
dist_2
SELECT _shard_num FROM dist_2 order by _shard_num;
1
2
SELECT _shard_num FROM dist_2 order by _shard_num;
1
2
SELECT _shard_num, key FROM dist_2 order by _shard_num, key;
1 100
2 100
SELECT key FROM dist_2;
100
100
-- multiple _shard_num
SELECT 'remote(Distributed)';
remote(Distributed)
SELECT _shard_num, key FROM remote('127.0.0.1', currentDatabase(), dist_2) order by _shard_num, key;
1 100
2 100
-- JOIN system.clusters
SELECT 'JOIN system.clusters';
JOIN system.clusters
SELECT a._shard_num, a.key, b.host_name, b.host_address IN ('::1', '127.0.0.1'), b.port
FROM (SELECT *, _shard_num FROM dist_1) a
JOIN system.clusters b
ON a._shard_num = b.shard_num
WHERE b.cluster = 'test_cluster_two_shards_localhost';
1 10 localhost 1 9000
1 20 localhost 1 9000
SELECT _shard_num, key, b.host_name, b.host_address IN ('::1', '127.0.0.1'), b.port
FROM dist_1 a
JOIN system.clusters b
ON _shard_num = b.shard_num
WHERE b.cluster = 'test_cluster_two_shards_localhost'; -- { serverError 403 }
SELECT 'Rewrite with alias';
Rewrite with alias
SELECT a._shard_num, key FROM dist_1 a;
1 10
1 20
-- the same with JOIN, just in case
SELECT a._shard_num, a.key, b.host_name, b.host_address IN ('::1', '127.0.0.1'), b.port
FROM dist_1 a
JOIN system.clusters b
ON a._shard_num = b.shard_num
WHERE b.cluster = 'test_cluster_two_shards_localhost'; -- { serverError 47, 403 }
SELECT 'dist_3';
dist_3
SELECT * FROM dist_3;
100 foo
SELECT _shard_num, * FROM dist_3 order by _shard_num;
foo 100 foo