mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-25 17:12:03 +00:00
134 lines
7.2 KiB
Python
134 lines
7.2 KiB
Python
import time
|
|
import contextlib
|
|
|
|
import pymysql.cursors
|
|
import pytest
|
|
|
|
from helpers.cluster import ClickHouseCluster
|
|
from helpers.client import QueryRuntimeException
|
|
|
|
cluster = ClickHouseCluster(__file__)
|
|
clickhouse_node = cluster.add_instance('node1', main_configs=['configs/remote_servers.xml'], with_mysql=True)
|
|
|
|
|
|
@pytest.fixture(scope="module")
|
|
def started_cluster():
|
|
try:
|
|
cluster.start()
|
|
yield cluster
|
|
finally:
|
|
cluster.shutdown()
|
|
|
|
|
|
class MySQLNodeInstance:
|
|
def __init__(self, user='root', password='clickhouse', hostname='127.0.0.1', port=3308):
|
|
self.user = user
|
|
self.port = port
|
|
self.hostname = hostname
|
|
self.password = password
|
|
self.mysql_connection = None # lazy init
|
|
|
|
def query(self, execution_query):
|
|
if self.mysql_connection is None:
|
|
self.mysql_connection = pymysql.connect(user=self.user, password=self.password, host=self.hostname, port=self.port)
|
|
with self.mysql_connection.cursor() as cursor:
|
|
cursor.execute(execution_query)
|
|
|
|
def close(self):
|
|
if self.mysql_connection is not None:
|
|
self.mysql_connection.close()
|
|
|
|
|
|
def test_mysql_ddl_for_mysql_database(started_cluster):
|
|
with contextlib.closing(MySQLNodeInstance('root', 'clickhouse', '127.0.0.1', port=3308)) as mysql_node:
|
|
mysql_node.query("CREATE DATABASE test_database DEFAULT CHARACTER SET 'utf8'")
|
|
|
|
clickhouse_node.query("CREATE DATABASE test_database ENGINE = MySQL('mysql1:3306', 'test_database', 'root', 'clickhouse')")
|
|
assert 'test_database' in clickhouse_node.query('SHOW DATABASES')
|
|
|
|
mysql_node.query('CREATE TABLE `test_database`.`test_table` ( `id` int(11) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB;')
|
|
assert 'test_table' in clickhouse_node.query('SHOW TABLES FROM test_database')
|
|
|
|
time.sleep(3) # Because the unit of MySQL modification time is seconds, modifications made in the same second cannot be obtained
|
|
mysql_node.query('ALTER TABLE `test_database`.`test_table` ADD COLUMN `add_column` int(11)')
|
|
assert 'add_column' in clickhouse_node.query("SELECT name FROM system.columns WHERE table = 'test_table' AND database = 'test_database'")
|
|
|
|
time.sleep(3) # Because the unit of MySQL modification time is seconds, modifications made in the same second cannot be obtained
|
|
mysql_node.query('ALTER TABLE `test_database`.`test_table` DROP COLUMN `add_column`')
|
|
assert 'add_column' not in clickhouse_node.query("SELECT name FROM system.columns WHERE table = 'test_table' AND database = 'test_database'")
|
|
|
|
mysql_node.query('DROP TABLE `test_database`.`test_table`;')
|
|
assert 'test_table' not in clickhouse_node.query('SHOW TABLES FROM test_database')
|
|
|
|
clickhouse_node.query("DROP DATABASE test_database")
|
|
assert 'test_database' not in clickhouse_node.query('SHOW DATABASES')
|
|
|
|
mysql_node.query("DROP DATABASE test_database")
|
|
|
|
|
|
def test_clickhouse_ddl_for_mysql_database(started_cluster):
|
|
with contextlib.closing(MySQLNodeInstance('root', 'clickhouse', '127.0.0.1', port=3308)) as mysql_node:
|
|
mysql_node.query("CREATE DATABASE test_database DEFAULT CHARACTER SET 'utf8'")
|
|
mysql_node.query('CREATE TABLE `test_database`.`test_table` ( `id` int(11) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB;')
|
|
|
|
clickhouse_node.query("CREATE DATABASE test_database ENGINE = MySQL('mysql1:3306', 'test_database', 'root', 'clickhouse')")
|
|
|
|
assert 'test_table' in clickhouse_node.query('SHOW TABLES FROM test_database')
|
|
clickhouse_node.query("DROP TABLE test_database.test_table")
|
|
assert 'test_table' not in clickhouse_node.query('SHOW TABLES FROM test_database')
|
|
clickhouse_node.query("ATTACH TABLE test_database.test_table")
|
|
assert 'test_table' in clickhouse_node.query('SHOW TABLES FROM test_database')
|
|
clickhouse_node.query("DETACH TABLE test_database.test_table")
|
|
assert 'test_table' not in clickhouse_node.query('SHOW TABLES FROM test_database')
|
|
clickhouse_node.query("ATTACH TABLE test_database.test_table")
|
|
assert 'test_table' in clickhouse_node.query('SHOW TABLES FROM test_database')
|
|
|
|
clickhouse_node.query("DROP DATABASE test_database")
|
|
assert 'test_database' not in clickhouse_node.query('SHOW DATABASES')
|
|
|
|
mysql_node.query("DROP DATABASE test_database")
|
|
|
|
|
|
def test_clickhouse_dml_for_mysql_database(started_cluster):
|
|
with contextlib.closing(MySQLNodeInstance('root', 'clickhouse', '127.0.0.1', port=3308)) as mysql_node:
|
|
mysql_node.query("CREATE DATABASE test_database DEFAULT CHARACTER SET 'utf8'")
|
|
mysql_node.query('CREATE TABLE `test_database`.`test_table` ( `i``d` int(11) NOT NULL, PRIMARY KEY (`i``d`)) ENGINE=InnoDB;')
|
|
clickhouse_node.query("CREATE DATABASE test_database ENGINE = MySQL('mysql1:3306', test_database, 'root', 'clickhouse')")
|
|
|
|
assert clickhouse_node.query("SELECT count() FROM `test_database`.`test_table`").rstrip() == '0'
|
|
clickhouse_node.query("INSERT INTO `test_database`.`test_table`(`i\`d`) select number from numbers(10000)")
|
|
assert clickhouse_node.query("SELECT count() FROM `test_database`.`test_table`").rstrip() == '10000'
|
|
|
|
mysql_node.query("DROP DATABASE test_database")
|
|
|
|
|
|
def test_clickhouse_join_for_mysql_database(started_cluster):
|
|
with contextlib.closing(MySQLNodeInstance('root', 'clickhouse', '127.0.0.1', port=3308)) as mysql_node:
|
|
mysql_node.query("CREATE DATABASE IF NOT EXISTS test DEFAULT CHARACTER SET 'utf8'")
|
|
mysql_node.query("CREATE TABLE test.t1_mysql_local ("
|
|
"pays VARCHAR(55) DEFAULT 'FRA' NOT NULL,"
|
|
"service VARCHAR(5) DEFAULT '' NOT NULL,"
|
|
"opco CHAR(3) DEFAULT '' NOT NULL"
|
|
")")
|
|
mysql_node.query("CREATE TABLE test.t2_mysql_local ("
|
|
"service VARCHAR(5) DEFAULT '' NOT NULL,"
|
|
"opco VARCHAR(5) DEFAULT ''"
|
|
")")
|
|
clickhouse_node.query("CREATE TABLE default.t1_remote_mysql AS mysql('mysql1:3306','test','t1_mysql_local','root','clickhouse')")
|
|
clickhouse_node.query("CREATE TABLE default.t2_remote_mysql AS mysql('mysql1:3306','test','t2_mysql_local','root','clickhouse')")
|
|
assert clickhouse_node.query("SELECT s.pays "
|
|
"FROM default.t1_remote_mysql AS s "
|
|
"LEFT JOIN default.t1_remote_mysql AS s_ref "
|
|
"ON (s_ref.opco = s.opco AND s_ref.service = s.service)") == ''
|
|
mysql_node.query("DROP DATABASE test")
|
|
|
|
|
|
def test_bad_arguments_for_mysql_database_engine(started_cluster):
|
|
with contextlib.closing(MySQLNodeInstance('root', 'clickhouse', '127.0.0.1', port=3308)) as mysql_node:
|
|
with pytest.raises(QueryRuntimeException) as exception:
|
|
mysql_node.query("CREATE DATABASE IF NOT EXISTS test_bad_arguments DEFAULT CHARACTER SET 'utf8'")
|
|
clickhouse_node.query("CREATE DATABASE test_database ENGINE = MySQL('mysql1:3306', test_bad_arguments, root, 'clickhouse')")
|
|
|
|
assert 'Database engine MySQL requested literal argument.' in str(exception.value)
|
|
mysql_node.query("DROP DATABASE test_bad_arguments")
|