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75 lines
2.8 KiB
SQL
75 lines
2.8 KiB
SQL
-- Tags: shard
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-- make the order static
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SET max_threads = 1;
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-- remote(system.one)
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SELECT 'remote(system.one)';
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SELECT * FROM remote('127.0.0.1', system.one);
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SELECT * FROM remote('127.0.0.{1,2}', system.one);
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SELECT _shard_num, * FROM remote('127.0.0.1', system.one);
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SELECT _shard_num, * FROM remote('127.0.0.{1,2}', system.one) order by _shard_num;
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SELECT _shard_num, * FROM remote('127.0.0.{1,2}', system.one) WHERE _shard_num = 1;
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-- dist_1 using test_shard_localhost
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SELECT 'dist_1';
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CREATE TABLE mem1 (key Int) Engine=Memory();
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CREATE TABLE dist_1 AS mem1 Engine=Distributed(test_shard_localhost, currentDatabase(), mem1);
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SELECT _shard_num FROM dist_1 order by _shard_num;
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INSERT INTO mem1 VALUES (10);
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SELECT _shard_num FROM dist_1 order by _shard_num;
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SELECT _shard_num, key FROM dist_1 order by _shard_num;
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SELECT key FROM dist_1;
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INSERT INTO dist_1 VALUES (20);
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SELECT _shard_num FROM dist_1 order by _shard_num;
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SELECT _shard_num, key FROM dist_1 order by _shard_num, key;
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SELECT key FROM dist_1;
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-- dist_2 using test_cluster_two_shards_localhost
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SELECT 'dist_2';
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CREATE TABLE mem2 (key Int) Engine=Memory();
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CREATE TABLE dist_2 AS mem2 Engine=Distributed(test_cluster_two_shards_localhost, currentDatabase(), mem2);
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SELECT _shard_num FROM dist_2 order by _shard_num;
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INSERT INTO mem2 VALUES (100);
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SELECT _shard_num FROM dist_2 order by _shard_num;
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SELECT _shard_num, key FROM dist_2 order by _shard_num, key;
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SELECT key FROM dist_2;
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-- multiple _shard_num
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SELECT 'remote(Distributed)';
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SELECT _shard_num, key FROM remote('127.0.0.1', currentDatabase(), dist_2) order by _shard_num, key;
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-- JOIN system.clusters
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SELECT 'JOIN system.clusters';
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SELECT a._shard_num, a.key, b.host_name, b.host_address IN ('::1', '127.0.0.1'), b.port
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FROM (SELECT *, _shard_num FROM dist_1) a
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JOIN system.clusters b
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ON a._shard_num = b.shard_num
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WHERE b.cluster = 'test_cluster_two_shards_localhost';
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SELECT _shard_num, key, b.host_name, b.host_address IN ('::1', '127.0.0.1'), b.port
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FROM dist_1 a
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JOIN system.clusters b
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ON _shard_num = b.shard_num
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WHERE b.cluster = 'test_cluster_two_shards_localhost'; -- { serverError 403 }
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-- rewrite does not work with aliases, hence Missing columns (47)
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SELECT a._shard_num, key FROM dist_1 a; -- { serverError 47; }
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-- the same with JOIN, just in case
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SELECT a._shard_num, a.key, b.host_name, b.host_address IN ('::1', '127.0.0.1'), b.port
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FROM dist_1 a
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JOIN system.clusters b
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ON a._shard_num = b.shard_num
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WHERE b.cluster = 'test_cluster_two_shards_localhost'; -- { serverError 47; }
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SELECT 'dist_3';
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CREATE TABLE mem3 (key Int, _shard_num String) Engine=Memory();
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CREATE TABLE dist_3 AS mem3 Engine=Distributed(test_shard_localhost, currentDatabase(), mem3);
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INSERT INTO mem3 VALUES (100, 'foo');
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SELECT * FROM dist_3;
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SELECT _shard_num, * FROM dist_3 order by _shard_num;
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