mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-29 11:02:08 +00:00
64 lines
1.7 KiB
Python
64 lines
1.7 KiB
Python
import pytest
|
|
|
|
from helpers.cluster import ClickHouseCluster
|
|
|
|
cluster = ClickHouseCluster(__file__)
|
|
cluster_name = "parallel_replicas"
|
|
nodes = [
|
|
cluster.add_instance(
|
|
f"node{num}",
|
|
main_configs=["configs/clusters.xml"],
|
|
with_zookeeper=False,
|
|
image="clickhouse/clickhouse-server",
|
|
tag="23.11", # earlier versions lead to "Not found column sum(a) in block." exception 🤷
|
|
stay_alive=True,
|
|
use_old_analyzer=True,
|
|
with_installed_binary=True,
|
|
)
|
|
for num in range(2)
|
|
] + [
|
|
cluster.add_instance(
|
|
"node2",
|
|
main_configs=["configs/clusters.xml"],
|
|
with_zookeeper=False,
|
|
use_old_analyzer=True,
|
|
)
|
|
]
|
|
|
|
|
|
@pytest.fixture(scope="module")
|
|
def start_cluster():
|
|
try:
|
|
cluster.start()
|
|
yield cluster
|
|
|
|
finally:
|
|
cluster.shutdown()
|
|
|
|
|
|
def test_backward_compatability(start_cluster):
|
|
for node in nodes:
|
|
node.query("create table t (a UInt64) engine = MergeTree order by tuple()")
|
|
node.query("insert into t select number % 100000 from numbers_mt(1000000)")
|
|
|
|
# all we want is the query to run without errors
|
|
for node in nodes:
|
|
assert (
|
|
node.query(
|
|
"""
|
|
select sum(a)
|
|
from t
|
|
""",
|
|
settings={
|
|
"cluster_for_parallel_replicas": "parallel_replicas",
|
|
"max_parallel_replicas": 3,
|
|
"allow_experimental_parallel_reading_from_replicas": 1,
|
|
"parallel_replicas_for_non_replicated_merge_tree": 1,
|
|
},
|
|
)
|
|
== "49999500000\n"
|
|
)
|
|
|
|
for node in nodes:
|
|
node.query("drop table t")
|