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49 lines
1.5 KiB
Python
49 lines
1.5 KiB
Python
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from contextlib import contextmanager
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import pytest
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from helpers.cluster import ClickHouseCluster
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cluster = ClickHouseCluster(__file__)
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node1 = cluster.add_instance('node1', main_configs=['configs/remote_servers.xml'])
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node2 = cluster.add_instance('node2', main_configs=['configs/remote_servers.xml'])
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@pytest.fixture(scope="module")
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def started_cluster():
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try:
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cluster.start()
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for node in (node1, node2):
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node.query('''
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CREATE TABLE local_table(id UInt32, val String) ENGINE = TinyLog;
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''')
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node1.query("INSERT INTO local_table VALUES (1, 'node1')")
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node2.query("INSERT INTO local_table VALUES (2, 'node2')")
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node1.query('''
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CREATE TABLE distributed_table(id UInt32, val String) ENGINE = Distributed(test_cluster, default, local_table);
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CREATE TABLE merge_table(id UInt32, val String) ENGINE = Merge(default, '^distributed_table')
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''')
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yield cluster
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finally:
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cluster.shutdown()
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def test_global_in(started_cluster):
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assert node1.query("SELECT val FROM distributed_table WHERE id GLOBAL IN (SELECT toUInt32(3 - id) FROM local_table)").rstrip() \
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== 'node2'
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assert node1.query("SELECT val FROM merge_table WHERE id GLOBAL IN (SELECT toUInt32(3 - id) FROM local_table)").rstrip() \
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== 'node2'
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if __name__ == '__main__':
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with contextmanager(started_cluster)() as cluster:
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for name, instance in cluster.instances.items():
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print name, instance.ip_address
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raw_input("Cluster created, press any key to destroy...")
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