mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-05 14:02:21 +00:00
992 lines
32 KiB
Python
992 lines
32 KiB
Python
import contextlib
|
|
import time
|
|
from string import Template
|
|
|
|
import pymysql.cursors
|
|
import pytest
|
|
from helpers.client import QueryRuntimeException
|
|
from helpers.cluster import ClickHouseCluster
|
|
from helpers.network import PartitionManager
|
|
|
|
cluster = ClickHouseCluster(__file__)
|
|
clickhouse_node = cluster.add_instance(
|
|
"node1",
|
|
main_configs=["configs/remote_servers.xml", "configs/named_collections.xml"],
|
|
with_mysql=True,
|
|
stay_alive=True,
|
|
)
|
|
|
|
|
|
@pytest.fixture(scope="module")
|
|
def started_cluster():
|
|
try:
|
|
cluster.start()
|
|
yield cluster
|
|
finally:
|
|
cluster.shutdown()
|
|
|
|
|
|
class MySQLNodeInstance:
|
|
def __init__(self, user, password, hostname, port):
|
|
self.user = user
|
|
self.port = port
|
|
self.hostname = hostname
|
|
self.password = password
|
|
self.mysql_connection = None # lazy init
|
|
self.ip_address = hostname
|
|
|
|
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:
|
|
|
|
def execute(query):
|
|
res = cursor.execute(query)
|
|
if query.lstrip().lower().startswith(("select", "show")):
|
|
# Mimic output of the ClickHouseInstance, which is:
|
|
# tab-sparated values and newline (\n)-separated rows.
|
|
rows = []
|
|
for row in cursor.fetchall():
|
|
rows.append("\t".join(str(item) for item in row))
|
|
res = "\n".join(rows)
|
|
return res
|
|
|
|
if isinstance(execution_query, (str, bytes)):
|
|
return execute(execution_query)
|
|
else:
|
|
return [execute(q) for q in 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", started_cluster.mysql_ip, started_cluster.mysql_port
|
|
)
|
|
) as mysql_node:
|
|
mysql_node.query("DROP DATABASE IF EXISTS test_database")
|
|
mysql_node.query("CREATE DATABASE test_database DEFAULT CHARACTER SET 'utf8'")
|
|
|
|
clickhouse_node.query(
|
|
"CREATE DATABASE test_database ENGINE = MySQL('mysql57:3306', '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", started_cluster.mysql_ip, started_cluster.mysql_port
|
|
)
|
|
) 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('mysql57:3306', '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", started_cluster.mysql_ip, started_cluster.mysql_port
|
|
)
|
|
) 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('mysql57:3306', 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"
|
|
)
|
|
|
|
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_join_for_mysql_database(started_cluster):
|
|
with contextlib.closing(
|
|
MySQLNodeInstance(
|
|
"root", "clickhouse", started_cluster.mysql_ip, started_cluster.mysql_port
|
|
)
|
|
) 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('mysql57:3306','test','t1_mysql_local','root','clickhouse')"
|
|
)
|
|
clickhouse_node.query(
|
|
"CREATE TABLE default.t2_remote_mysql AS mysql('mysql57:3306','test','t2_mysql_local','root','clickhouse')"
|
|
)
|
|
clickhouse_node.query(
|
|
"INSERT INTO `default`.`t1_remote_mysql` VALUES ('EN','A',''),('RU','B','AAA')"
|
|
)
|
|
clickhouse_node.query(
|
|
"INSERT INTO `default`.`t2_remote_mysql` VALUES ('A','AAA'),('Z','')"
|
|
)
|
|
|
|
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) "
|
|
"WHERE s_ref.opco != '' AND s.opco != '' "
|
|
).rstrip()
|
|
== "RU"
|
|
)
|
|
mysql_node.query("DROP DATABASE test")
|
|
|
|
|
|
def test_bad_arguments_for_mysql_database_engine(started_cluster):
|
|
with contextlib.closing(
|
|
MySQLNodeInstance(
|
|
"root",
|
|
"clickhouse",
|
|
started_cluster.mysql_ip,
|
|
port=started_cluster.mysql_port,
|
|
)
|
|
) 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_bad_arguments ENGINE = MySQL('mysql57:3306', test_bad_arguments, root, 'clickhouse')"
|
|
)
|
|
assert "Database engine MySQL requested literal argument." in str(
|
|
exception.value
|
|
)
|
|
mysql_node.query("DROP DATABASE test_bad_arguments")
|
|
|
|
|
|
def test_column_comments_for_mysql_database_engine(started_cluster):
|
|
with contextlib.closing(
|
|
MySQLNodeInstance(
|
|
"root", "clickhouse", started_cluster.mysql_ip, started_cluster.mysql_port
|
|
)
|
|
) as mysql_node:
|
|
mysql_node.query("DROP DATABASE IF EXISTS test_database")
|
|
mysql_node.query("CREATE DATABASE test_database DEFAULT CHARACTER SET 'utf8'")
|
|
|
|
clickhouse_node.query(
|
|
"CREATE DATABASE test_database ENGINE = MySQL('mysql57:3306', '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`), `test` int COMMENT 'test comment') ENGINE=InnoDB;"
|
|
)
|
|
assert "test comment" in clickhouse_node.query(
|
|
"DESCRIBE TABLE `test_database`.`test_table`"
|
|
)
|
|
|
|
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) COMMENT 'add_column comment'"
|
|
)
|
|
assert "add_column comment" in clickhouse_node.query(
|
|
"SELECT comment FROM system.columns WHERE table = 'test_table' AND database = 'test_database'"
|
|
)
|
|
|
|
clickhouse_node.query("DROP DATABASE test_database")
|
|
mysql_node.query("DROP DATABASE test_database")
|
|
|
|
|
|
def test_data_types_support_level_for_mysql_database_engine(started_cluster):
|
|
with contextlib.closing(
|
|
MySQLNodeInstance(
|
|
"root", "clickhouse", started_cluster.mysql_ip, started_cluster.mysql_port
|
|
)
|
|
) as mysql_node:
|
|
mysql_node.query(
|
|
"CREATE DATABASE IF NOT EXISTS test DEFAULT CHARACTER SET 'utf8'"
|
|
)
|
|
clickhouse_node.query(
|
|
"CREATE DATABASE test_database ENGINE = MySQL('mysql57:3306', test, 'root', 'clickhouse')",
|
|
settings={"mysql_datatypes_support_level": "decimal,datetime64"},
|
|
)
|
|
|
|
assert (
|
|
"SETTINGS mysql_datatypes_support_level = \\'decimal,datetime64\\'"
|
|
in clickhouse_node.query("SHOW CREATE DATABASE test_database FORMAT TSV")
|
|
)
|
|
clickhouse_node.query("DETACH DATABASE test_database")
|
|
|
|
# without context settings
|
|
clickhouse_node.query("ATTACH DATABASE test_database")
|
|
assert (
|
|
"SETTINGS mysql_datatypes_support_level = \\'decimal,datetime64\\'"
|
|
in clickhouse_node.query("SHOW CREATE DATABASE test_database FORMAT TSV")
|
|
)
|
|
|
|
clickhouse_node.query(
|
|
"CREATE DATABASE test_database_1 ENGINE = MySQL('mysql57:3306', test, 'root', 'clickhouse') SETTINGS mysql_datatypes_support_level = 'decimal,datetime64'",
|
|
settings={"mysql_datatypes_support_level": "decimal"},
|
|
)
|
|
|
|
assert (
|
|
"SETTINGS mysql_datatypes_support_level = \\'decimal,datetime64\\'"
|
|
in clickhouse_node.query("SHOW CREATE DATABASE test_database_1 FORMAT TSV")
|
|
)
|
|
clickhouse_node.query("DETACH DATABASE test_database_1")
|
|
|
|
# without context settings
|
|
clickhouse_node.query("ATTACH DATABASE test_database_1")
|
|
assert (
|
|
"SETTINGS mysql_datatypes_support_level = \\'decimal,datetime64\\'"
|
|
in clickhouse_node.query("SHOW CREATE DATABASE test_database_1 FORMAT TSV")
|
|
)
|
|
|
|
clickhouse_node.query("DROP DATABASE test_database")
|
|
clickhouse_node.query("DROP DATABASE test_database_1")
|
|
assert "test_database" not in clickhouse_node.query("SHOW DATABASES")
|
|
mysql_node.query("DROP DATABASE test")
|
|
|
|
|
|
float_values = [0, "NULL"]
|
|
clickhouse_float_values = [0, "\\N"]
|
|
int32_values = [0, 1, -1, 2147483647, -2147483648]
|
|
uint32_values = [
|
|
0,
|
|
1,
|
|
] # [FIXME] seems client have issue with value 4294967295, it returns -1 for it
|
|
mint_values = [0, 1, -1, 8388607, -8388608]
|
|
umint_values = [0, 1, 16777215]
|
|
int16_values = [0, 1, -1, 32767, -32768]
|
|
uint16_values = [0, 1, 65535]
|
|
int8_values = [0, 1, -1, 127, -128]
|
|
uint8_values = [0, 1, 255]
|
|
string_values = ["'ClickHouse'", "NULL"]
|
|
clickhouse_string_values = ["ClickHouse", "\\N"]
|
|
date_values = ["'1970-01-01'"]
|
|
date2Date32_values = ["'1925-01-01'", "'2283-11-11'"]
|
|
date2String_values = ["'1000-01-01'", "'9999-12-31'"]
|
|
|
|
|
|
decimal_values = [
|
|
0,
|
|
0.123,
|
|
0.4,
|
|
5.67,
|
|
8.91011,
|
|
123456789.123,
|
|
-0.123,
|
|
-0.4,
|
|
-5.67,
|
|
-8.91011,
|
|
-123456789.123,
|
|
]
|
|
timestamp_values = ["'2015-05-18 07:40:01.123'", "'2019-09-16 19:20:11.123'"]
|
|
timestamp_values_no_subsecond = ["'2015-05-18 07:40:01'", "'2019-09-16 19:20:11'"]
|
|
|
|
|
|
def arryToString(expected_clickhouse_values):
|
|
return "\n".join(str(value) for value in expected_clickhouse_values)
|
|
|
|
|
|
# if expected_clickhouse_values is "", compare MySQL and ClickHouse query results directly
|
|
@pytest.mark.parametrize(
|
|
"case_name, mysql_type, expected_ch_type, mysql_values, expected_clickhouse_values , setting_mysql_datatypes_support_level",
|
|
[
|
|
pytest.param(
|
|
"common_types",
|
|
"FLOAT",
|
|
"Nullable(Float32)",
|
|
float_values,
|
|
clickhouse_float_values,
|
|
"",
|
|
id="float_1",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"FLOAT UNSIGNED",
|
|
"Nullable(Float32)",
|
|
float_values,
|
|
clickhouse_float_values,
|
|
"",
|
|
id="float_2",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"INT",
|
|
"Nullable(Int32)",
|
|
int32_values,
|
|
int32_values,
|
|
"",
|
|
id="common_types_1",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"INT NOT NULL",
|
|
"Int32",
|
|
int32_values,
|
|
int32_values,
|
|
"",
|
|
id="common_types_2",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"INT UNSIGNED NOT NULL",
|
|
"UInt32",
|
|
uint32_values,
|
|
uint32_values,
|
|
"",
|
|
id="common_types_3",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"INT UNSIGNED",
|
|
"Nullable(UInt32)",
|
|
uint32_values,
|
|
uint32_values,
|
|
"",
|
|
id="common_types_4",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"INT UNSIGNED DEFAULT NULL",
|
|
"Nullable(UInt32)",
|
|
uint32_values,
|
|
uint32_values,
|
|
"",
|
|
id="common_types_5",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"INT UNSIGNED DEFAULT '1'",
|
|
"Nullable(UInt32)",
|
|
uint32_values,
|
|
uint32_values,
|
|
"",
|
|
id="common_types_6",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"INT(10)",
|
|
"Nullable(Int32)",
|
|
int32_values,
|
|
int32_values,
|
|
"",
|
|
id="common_types_7",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"INT(10) NOT NULL",
|
|
"Int32",
|
|
int32_values,
|
|
int32_values,
|
|
"",
|
|
id="common_types_8",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"INT(10) UNSIGNED NOT NULL",
|
|
"UInt32",
|
|
uint32_values,
|
|
uint32_values,
|
|
"",
|
|
id="common_types_8",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"INT(10) UNSIGNED",
|
|
"Nullable(UInt32)",
|
|
uint32_values,
|
|
uint32_values,
|
|
"",
|
|
id="common_types_9",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"INT(10) UNSIGNED DEFAULT NULL",
|
|
"Nullable(UInt32)",
|
|
uint32_values,
|
|
uint32_values,
|
|
"",
|
|
id="common_types_10",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"INT(10) UNSIGNED DEFAULT '1'",
|
|
"Nullable(UInt32)",
|
|
uint32_values,
|
|
uint32_values,
|
|
"",
|
|
id="common_types_11",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"INTEGER",
|
|
"Nullable(Int32)",
|
|
int32_values,
|
|
int32_values,
|
|
"",
|
|
id="common_types_12",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"INTEGER UNSIGNED",
|
|
"Nullable(UInt32)",
|
|
uint32_values,
|
|
uint32_values,
|
|
"",
|
|
id="common_types_13",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"MEDIUMINT",
|
|
"Nullable(Int32)",
|
|
mint_values,
|
|
mint_values,
|
|
"",
|
|
id="common_types_14",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"MEDIUMINT UNSIGNED",
|
|
"Nullable(UInt32)",
|
|
umint_values,
|
|
umint_values,
|
|
"",
|
|
id="common_types_15",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"SMALLINT",
|
|
"Nullable(Int16)",
|
|
int16_values,
|
|
int16_values,
|
|
"",
|
|
id="common_types_16",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"SMALLINT UNSIGNED",
|
|
"Nullable(UInt16)",
|
|
uint16_values,
|
|
uint16_values,
|
|
"",
|
|
id="common_types_17",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"TINYINT",
|
|
"Nullable(Int8)",
|
|
int8_values,
|
|
int8_values,
|
|
"",
|
|
id="common_types_18",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"TINYINT UNSIGNED",
|
|
"Nullable(UInt8)",
|
|
uint8_values,
|
|
uint8_values,
|
|
"",
|
|
id="common_types_19",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"VARCHAR(10)",
|
|
"Nullable(String)",
|
|
string_values,
|
|
clickhouse_string_values,
|
|
"",
|
|
id="common_types_20",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"DATE",
|
|
"Nullable(Date)",
|
|
date_values,
|
|
"",
|
|
"",
|
|
id="common_types_21",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"DATE",
|
|
"Nullable(Date32)",
|
|
date2Date32_values,
|
|
"",
|
|
"date2Date32",
|
|
id="common_types_22",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"DATE",
|
|
"Nullable(String)",
|
|
date2String_values,
|
|
"",
|
|
"date2String",
|
|
id="common_types_23",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"binary(1)",
|
|
"Nullable(FixedString(1))",
|
|
[1],
|
|
[1],
|
|
"",
|
|
id="common_types_24",
|
|
),
|
|
pytest.param(
|
|
"common_types",
|
|
"binary(0)",
|
|
"Nullable(FixedString(1))",
|
|
["NULL"],
|
|
["\\N"],
|
|
"",
|
|
id="common_types_25",
|
|
),
|
|
pytest.param(
|
|
"decimal_default",
|
|
"decimal NOT NULL",
|
|
"Decimal(10, 0)",
|
|
decimal_values,
|
|
"",
|
|
"decimal,datetime64",
|
|
id="decimal_1",
|
|
),
|
|
pytest.param(
|
|
"decimal_default_nullable",
|
|
"decimal",
|
|
"Nullable(Decimal(10, 0))",
|
|
decimal_values,
|
|
"",
|
|
"decimal,datetime64",
|
|
id="decimal_2",
|
|
),
|
|
pytest.param(
|
|
"decimal_18_6",
|
|
"decimal(18, 6) NOT NULL",
|
|
"Decimal(18, 6)",
|
|
decimal_values,
|
|
"",
|
|
"decimal,datetime64",
|
|
id="decimal_3",
|
|
),
|
|
pytest.param(
|
|
"decimal_38_6",
|
|
"decimal(38, 6) NOT NULL",
|
|
"Decimal(38, 6)",
|
|
decimal_values,
|
|
"",
|
|
"decimal,datetime64",
|
|
id="decimal_4",
|
|
),
|
|
# Due to python DB driver roundtrip MySQL timestamp and datetime values
|
|
# are printed with 6 digits after decimal point, so to simplify tests a bit,
|
|
# we only validate precision of 0 and 6.
|
|
pytest.param(
|
|
"timestamp_default",
|
|
"timestamp",
|
|
"DateTime",
|
|
timestamp_values,
|
|
"",
|
|
"decimal,datetime64",
|
|
id="timestamp_default",
|
|
),
|
|
pytest.param(
|
|
"timestamp_6",
|
|
"timestamp(6)",
|
|
"DateTime64(6)",
|
|
timestamp_values,
|
|
"",
|
|
"decimal,datetime64",
|
|
id="timestamp_6",
|
|
),
|
|
pytest.param(
|
|
"datetime_default",
|
|
"DATETIME NOT NULL",
|
|
"DateTime64(0)",
|
|
timestamp_values,
|
|
"",
|
|
"decimal,datetime64",
|
|
id="datetime_default",
|
|
),
|
|
pytest.param(
|
|
"datetime_6",
|
|
"DATETIME(6) NOT NULL",
|
|
"DateTime64(6)",
|
|
timestamp_values,
|
|
"",
|
|
"decimal,datetime64",
|
|
id="datetime_6_1",
|
|
),
|
|
# right now precision bigger than 39 is not supported by ClickHouse's Decimal, hence fall back to String
|
|
pytest.param(
|
|
"decimal_40_6",
|
|
"decimal(40, 6) NOT NULL",
|
|
"String",
|
|
decimal_values,
|
|
"",
|
|
"decimal,datetime64",
|
|
id="decimal_40_6",
|
|
),
|
|
pytest.param(
|
|
"decimal_18_6",
|
|
"decimal(18, 6) NOT NULL",
|
|
"String",
|
|
decimal_values,
|
|
"",
|
|
"datetime64",
|
|
id="decimal_18_6_1",
|
|
),
|
|
pytest.param(
|
|
"decimal_18_6",
|
|
"decimal(18, 6) NOT NULL",
|
|
"String",
|
|
decimal_values,
|
|
"",
|
|
"",
|
|
id="decimal_18_6_2",
|
|
),
|
|
pytest.param(
|
|
"datetime_6",
|
|
"DATETIME(6) NOT NULL",
|
|
"DateTime",
|
|
timestamp_values_no_subsecond,
|
|
"",
|
|
"decimal",
|
|
id="datetime_6_2",
|
|
),
|
|
pytest.param(
|
|
"datetime_6",
|
|
"DATETIME(6) NOT NULL",
|
|
"DateTime",
|
|
timestamp_values_no_subsecond,
|
|
"",
|
|
"",
|
|
id="datetime_6_3",
|
|
),
|
|
],
|
|
)
|
|
def test_mysql_types(
|
|
started_cluster,
|
|
case_name,
|
|
mysql_type,
|
|
expected_ch_type,
|
|
mysql_values,
|
|
expected_clickhouse_values,
|
|
setting_mysql_datatypes_support_level,
|
|
):
|
|
"""Verify that values written to MySQL can be read on ClickHouse side via DB engine MySQL,
|
|
or Table engine MySQL, or mysql() table function.
|
|
Make sure that type is converted properly and values match exactly.
|
|
"""
|
|
|
|
substitutes = dict(
|
|
mysql_db="decimal_support",
|
|
table_name=case_name,
|
|
mysql_type=mysql_type,
|
|
mysql_values=", ".join("({})".format(x) for x in mysql_values),
|
|
ch_mysql_db="mysql_db",
|
|
ch_mysql_table="mysql_table_engine_" + case_name,
|
|
expected_ch_type=expected_ch_type,
|
|
)
|
|
|
|
clickhouse_query_settings = dict(
|
|
mysql_datatypes_support_level=setting_mysql_datatypes_support_level,
|
|
output_format_decimal_trailing_zeros=1,
|
|
)
|
|
|
|
def execute_query(node, query, **kwargs):
|
|
def do_execute(query):
|
|
query = Template(query).safe_substitute(substitutes)
|
|
res = node.query(query, **kwargs)
|
|
return res if isinstance(res, int) else res.rstrip("\n\r")
|
|
|
|
if isinstance(query, (str, bytes)):
|
|
return do_execute(query)
|
|
else:
|
|
return [do_execute(q) for q in query]
|
|
|
|
with contextlib.closing(
|
|
MySQLNodeInstance(
|
|
"root",
|
|
"clickhouse",
|
|
started_cluster.mysql_ip,
|
|
port=started_cluster.mysql_port,
|
|
)
|
|
) as mysql_node:
|
|
execute_query(
|
|
mysql_node,
|
|
[
|
|
"DROP DATABASE IF EXISTS ${mysql_db}",
|
|
"CREATE DATABASE ${mysql_db} DEFAULT CHARACTER SET 'utf8'",
|
|
"CREATE TABLE `${mysql_db}`.`${table_name}` (value ${mysql_type})",
|
|
"INSERT INTO `${mysql_db}`.`${table_name}` (value) VALUES ${mysql_values}",
|
|
"SELECT * FROM `${mysql_db}`.`${table_name}`",
|
|
"FLUSH TABLES",
|
|
],
|
|
)
|
|
|
|
assert execute_query(
|
|
mysql_node, "SELECT COUNT(*) FROM ${mysql_db}.${table_name}"
|
|
) == "{}".format(len(mysql_values))
|
|
|
|
# MySQL TABLE ENGINE
|
|
execute_query(
|
|
clickhouse_node,
|
|
[
|
|
"DROP TABLE IF EXISTS ${ch_mysql_table};",
|
|
"CREATE TABLE ${ch_mysql_table} (value ${expected_ch_type}) ENGINE = MySQL('mysql57:3306', '${mysql_db}', '${table_name}', 'root', 'clickhouse')",
|
|
],
|
|
settings=clickhouse_query_settings,
|
|
)
|
|
|
|
# Validate type
|
|
assert (
|
|
execute_query(
|
|
clickhouse_node,
|
|
"SELECT toTypeName(value) FROM ${ch_mysql_table} LIMIT 1",
|
|
settings=clickhouse_query_settings,
|
|
)
|
|
== expected_ch_type
|
|
)
|
|
|
|
expected_format_clickhouse_values = arryToString(expected_clickhouse_values)
|
|
if expected_format_clickhouse_values == "":
|
|
expected_format_clickhouse_values = execute_query(
|
|
mysql_node, "SELECT value FROM ${mysql_db}.${table_name}"
|
|
)
|
|
|
|
# Validate values
|
|
assert expected_format_clickhouse_values == execute_query(
|
|
clickhouse_node,
|
|
"SELECT value FROM ${ch_mysql_table}",
|
|
settings=clickhouse_query_settings,
|
|
)
|
|
|
|
# MySQL DATABASE ENGINE
|
|
execute_query(
|
|
clickhouse_node,
|
|
[
|
|
"DROP DATABASE IF EXISTS ${ch_mysql_db}",
|
|
"CREATE DATABASE ${ch_mysql_db} ENGINE = MySQL('mysql57:3306', '${mysql_db}', 'root', 'clickhouse')",
|
|
],
|
|
settings=clickhouse_query_settings,
|
|
)
|
|
|
|
# Validate type
|
|
assert (
|
|
execute_query(
|
|
clickhouse_node,
|
|
"SELECT toTypeName(value) FROM ${ch_mysql_db}.${table_name} LIMIT 1",
|
|
settings=clickhouse_query_settings,
|
|
)
|
|
== expected_ch_type
|
|
)
|
|
|
|
# Validate values
|
|
assert expected_format_clickhouse_values == execute_query(
|
|
clickhouse_node,
|
|
"SELECT value FROM ${ch_mysql_db}.${table_name}",
|
|
settings=clickhouse_query_settings,
|
|
)
|
|
|
|
# MySQL TABLE FUNCTION
|
|
# Validate type
|
|
assert (
|
|
execute_query(
|
|
clickhouse_node,
|
|
"SELECT toTypeName(value) FROM mysql('mysql57:3306', '${mysql_db}', '${table_name}', 'root', 'clickhouse') LIMIT 1",
|
|
settings=clickhouse_query_settings,
|
|
)
|
|
== expected_ch_type
|
|
)
|
|
|
|
# Validate values
|
|
assert expected_format_clickhouse_values == execute_query(
|
|
clickhouse_node,
|
|
"SELECT value FROM mysql('mysql57:3306', '${mysql_db}', '${table_name}', 'root', 'clickhouse')",
|
|
settings=clickhouse_query_settings,
|
|
)
|
|
|
|
|
|
def test_predefined_connection_configuration(started_cluster):
|
|
with contextlib.closing(
|
|
MySQLNodeInstance(
|
|
"root", "clickhouse", started_cluster.mysql_ip, started_cluster.mysql_port
|
|
)
|
|
) as mysql_node:
|
|
mysql_node.query("DROP DATABASE IF EXISTS test_database")
|
|
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("DROP DATABASE IF EXISTS test_database")
|
|
clickhouse_node.query("CREATE DATABASE test_database ENGINE = MySQL(mysql1)")
|
|
clickhouse_node.query(
|
|
"INSERT INTO `test_database`.`test_table` select number from numbers(100)"
|
|
)
|
|
assert (
|
|
clickhouse_node.query(
|
|
"SELECT count() FROM `test_database`.`test_table`"
|
|
).rstrip()
|
|
== "100"
|
|
)
|
|
|
|
result = clickhouse_node.query("show create table test_database.test_table")
|
|
assert (
|
|
result.strip()
|
|
== "CREATE TABLE test_database.test_table\\n(\\n `id` Int32\\n)\\nENGINE = MySQL(mysql1, table = \\'test_table\\')"
|
|
)
|
|
|
|
clickhouse_node.query("DROP DATABASE test_database")
|
|
clickhouse_node.query_and_get_error(
|
|
"CREATE DATABASE test_database ENGINE = MySQL(mysql2)"
|
|
)
|
|
clickhouse_node.query_and_get_error(
|
|
"CREATE DATABASE test_database ENGINE = MySQL(unknown_collection)"
|
|
)
|
|
clickhouse_node.query_and_get_error(
|
|
"CREATE DATABASE test_database ENGINE = MySQL(mysql1, 1)"
|
|
)
|
|
|
|
clickhouse_node.query(
|
|
"CREATE DATABASE test_database ENGINE = MySQL(mysql1, port=3306)"
|
|
)
|
|
assert (
|
|
clickhouse_node.query(
|
|
"SELECT count() FROM `test_database`.`test_table`"
|
|
).rstrip()
|
|
== "100"
|
|
)
|
|
|
|
|
|
def test_restart_server(started_cluster):
|
|
with contextlib.closing(
|
|
MySQLNodeInstance(
|
|
"root", "clickhouse", started_cluster.mysql_ip, started_cluster.mysql_port
|
|
)
|
|
) as mysql_node:
|
|
mysql_node.query("DROP DATABASE IF EXISTS test_restart")
|
|
clickhouse_node.query("DROP DATABASE IF EXISTS test_restart")
|
|
clickhouse_node.query_and_get_error(
|
|
"CREATE DATABASE test_restart ENGINE = MySQL('mysql57:3306', 'test_restart', 'root', 'clickhouse')"
|
|
)
|
|
assert "test_restart" not in clickhouse_node.query("SHOW DATABASES")
|
|
|
|
mysql_node.query("CREATE DATABASE test_restart DEFAULT CHARACTER SET 'utf8'")
|
|
mysql_node.query(
|
|
"CREATE TABLE `test_restart`.`test_table` ( `id` int(11) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB;"
|
|
)
|
|
clickhouse_node.query(
|
|
"CREATE DATABASE test_restart ENGINE = MySQL('mysql57:3306', 'test_restart', 'root', 'clickhouse')"
|
|
)
|
|
|
|
assert "test_restart" in clickhouse_node.query("SHOW DATABASES")
|
|
assert "test_table" in clickhouse_node.query("SHOW TABLES FROM test_restart")
|
|
|
|
with PartitionManager() as pm:
|
|
pm.partition_instances(
|
|
clickhouse_node, mysql_node, action="REJECT --reject-with tcp-reset"
|
|
)
|
|
clickhouse_node.restart_clickhouse()
|
|
clickhouse_node.query_and_get_error("SHOW TABLES FROM test_restart")
|
|
assert "test_table" in clickhouse_node.query("SHOW TABLES FROM test_restart")
|