mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-23 08:02:02 +00:00
47 lines
2.0 KiB
Python
47 lines
2.0 KiB
Python
import time
|
|
import pytest
|
|
|
|
from helpers.cluster import ClickHouseCluster
|
|
from helpers.client import QueryRuntimeException, QueryTimeoutExceedException
|
|
|
|
|
|
cluster = ClickHouseCluster(__file__)
|
|
node1 = cluster.add_instance('node1')
|
|
node2 = cluster.add_instance('node2')
|
|
|
|
@pytest.fixture(scope="module")
|
|
def start_cluster():
|
|
try:
|
|
cluster.start()
|
|
|
|
for node in [node1, node2]:
|
|
node.query("create table da_memory_efficient_shard(A Int64, B Int64) Engine=MergeTree order by A partition by B % 2;")
|
|
|
|
|
|
node1.query("insert into da_memory_efficient_shard select number, number from numbers(100000);")
|
|
node2.query("insert into da_memory_efficient_shard select number + 100000, number from numbers(100000);")
|
|
|
|
yield cluster
|
|
|
|
finally:
|
|
cluster.shutdown()
|
|
|
|
|
|
def test_remote(start_cluster):
|
|
|
|
node1.query("set distributed_aggregation_memory_efficient = 1, group_by_two_level_threshold = 1, group_by_two_level_threshold_bytes=1")
|
|
res = node1.query("select sum(a) from (SELECT B, uniqExact(A) a FROM remote('node{1,2}', default.da_memory_efficient_shard) GROUP BY B)")
|
|
assert res == '200000\n'
|
|
|
|
node1.query("set distributed_aggregation_memory_efficient = 0")
|
|
res = node1.query("select sum(a) from (SELECT B, uniqExact(A) a FROM remote('node{1,2}', default.da_memory_efficient_shard) GROUP BY B)")
|
|
assert res == '200000\n'
|
|
|
|
node1.query("set distributed_aggregation_memory_efficient = 1, group_by_two_level_threshold = 1, group_by_two_level_threshold_bytes=1")
|
|
res = node1.query("SELECT fullHostName() AS h, uniqExact(A) AS a FROM remote('node{1,2}', default.da_memory_efficient_shard) GROUP BY h ORDER BY h;")
|
|
assert res == 'node1\t100000\nnode2\t100000\n'
|
|
|
|
node1.query("set distributed_aggregation_memory_efficient = 0")
|
|
res = node1.query("SELECT fullHostName() AS h, uniqExact(A) AS a FROM remote('node{1,2}', default.da_memory_efficient_shard) GROUP BY h ORDER BY h;")
|
|
assert res == 'node1\t100000\nnode2\t100000\n'
|