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ClickHouse/tests/integration/test_storage_postgresql/test.py
kssenii 3b32c8fe9a Block on empty connection pool
2021-03-19 21:00:45 +00:00

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import time
import pytest
import psycopg2
from multiprocessing.dummy import Pool
from helpers.cluster import ClickHouseCluster
from helpers.test_tools import assert_eq_with_retry
from psycopg2.extensions import ISOLATION_LEVEL_AUTOCOMMIT
cluster = ClickHouseCluster(__file__)
node1 = cluster.add_instance('node1', main_configs=["configs/log_conf.xml"], with_postgres=True)
def get_postgres_conn(database=False):
if database == True:
conn_string = "host='localhost' dbname='clickhouse' user='postgres' password='mysecretpassword'"
else:
conn_string = "host='localhost' user='postgres' password='mysecretpassword'"
conn = psycopg2.connect(conn_string)
conn.set_isolation_level(ISOLATION_LEVEL_AUTOCOMMIT)
conn.autocommit = True
return conn
def create_postgres_db(conn, name):
cursor = conn.cursor()
cursor.execute("CREATE DATABASE {}".format(name))
@pytest.fixture(scope="module")
def started_cluster():
try:
cluster.start()
postgres_conn = get_postgres_conn()
print("postgres connected")
create_postgres_db(postgres_conn, 'clickhouse')
yield cluster
finally:
cluster.shutdown()
def test_postgres_select_insert(started_cluster):
conn = get_postgres_conn(True)
cursor = conn.cursor()
table_name = 'test_many'
table = '''postgresql('postgres1:5432', 'clickhouse', '{}', 'postgres', 'mysecretpassword')'''.format(table_name)
cursor.execute('CREATE TABLE IF NOT EXISTS {} (a integer, b text, c integer)'.format(table_name))
result = node1.query('''
INSERT INTO TABLE FUNCTION {}
SELECT number, concat('name_', toString(number)), 3 from numbers(10000)'''.format(table))
check1 = "SELECT count() FROM {}".format(table)
check2 = "SELECT Sum(c) FROM {}".format(table)
check3 = "SELECT count(c) FROM {} WHERE a % 2 == 0".format(table)
check4 = "SELECT count() FROM {} WHERE b LIKE concat('name_', toString(1))".format(table)
assert (node1.query(check1)).rstrip() == '10000'
assert (node1.query(check2)).rstrip() == '30000'
assert (node1.query(check3)).rstrip() == '5000'
assert (node1.query(check4)).rstrip() == '1'
def test_postgres_conversions(started_cluster):
conn = get_postgres_conn(True)
cursor = conn.cursor()
cursor.execute(
'''CREATE TABLE IF NOT EXISTS test_types (
a smallint, b integer, c bigint, d real, e double precision, f serial, g bigserial,
h timestamp, i date, j decimal(5, 3), k numeric)''')
node1.query('''
INSERT INTO TABLE FUNCTION postgresql('postgres1:5432', 'clickhouse', 'test_types', 'postgres', 'mysecretpassword') VALUES
(-32768, -2147483648, -9223372036854775808, 1.12345, 1.1234567890, 2147483647, 9223372036854775807, '2000-05-12 12:12:12', '2000-05-12', 22.222, 22.222)''')
result = node1.query('''
SELECT a, b, c, d, e, f, g, h, i, j, toDecimal128(k, 3) FROM postgresql('postgres1:5432', 'clickhouse', 'test_types', 'postgres', 'mysecretpassword')''')
assert(result == '-32768\t-2147483648\t-9223372036854775808\t1.12345\t1.123456789\t2147483647\t9223372036854775807\t2000-05-12 12:12:12\t2000-05-12\t22.222\t22.222\n')
cursor.execute(
'''CREATE TABLE IF NOT EXISTS test_array_dimensions
(
a Date[] NOT NULL, -- Date
b Timestamp[] NOT NULL, -- DateTime
c real[][] NOT NULL, -- Float32
d double precision[][] NOT NULL, -- Float64
e decimal(5, 5)[][][] NOT NULL, -- Decimal32
f integer[][][] NOT NULL, -- Int32
g Text[][][][][] NOT NULL, -- String
h Integer[][][], -- Nullable(Int32)
i Char(2)[][][][], -- Nullable(String)
k Char(2)[] -- Nullable(String)
)''')
result = node1.query('''
DESCRIBE TABLE postgresql('postgres1:5432', 'clickhouse', 'test_array_dimensions', 'postgres', 'mysecretpassword')''')
expected = ('a\tArray(Date)\t\t\t\t\t\n' +
'b\tArray(DateTime)\t\t\t\t\t\n' +
'c\tArray(Array(Float32))\t\t\t\t\t\n' +
'd\tArray(Array(Float64))\t\t\t\t\t\n' +
'e\tArray(Array(Array(Decimal(5, 5))))\t\t\t\t\t\n' +
'f\tArray(Array(Array(Int32)))\t\t\t\t\t\n' +
'g\tArray(Array(Array(Array(Array(String)))))\t\t\t\t\t\n' +
'h\tArray(Array(Array(Nullable(Int32))))\t\t\t\t\t\n' +
'i\tArray(Array(Array(Array(Nullable(String)))))\t\t\t\t\t\n' +
'k\tArray(Nullable(String))'
)
assert(result.rstrip() == expected)
node1.query("INSERT INTO TABLE FUNCTION postgresql('postgres1:5432', 'clickhouse', 'test_array_dimensions', 'postgres', 'mysecretpassword') "
"VALUES ("
"['2000-05-12', '2000-05-12'], "
"['2000-05-12 12:12:12', '2000-05-12 12:12:12'], "
"[[1.12345], [1.12345], [1.12345]], "
"[[1.1234567891], [1.1234567891], [1.1234567891]], "
"[[[0.11111, 0.11111]], [[0.22222, 0.22222]], [[0.33333, 0.33333]]], "
"[[[1, 1], [1, 1]], [[3, 3], [3, 3]], [[4, 4], [5, 5]]], "
"[[[[['winx', 'winx', 'winx']]]]], "
"[[[1, NULL], [NULL, 1]], [[NULL, NULL], [NULL, NULL]], [[4, 4], [5, 5]]], "
"[[[[NULL]]]], "
"[]"
")")
result = node1.query('''
SELECT * FROM postgresql('postgres1:5432', 'clickhouse', 'test_array_dimensions', 'postgres', 'mysecretpassword')''')
expected = (
"['2000-05-12','2000-05-12']\t" +
"['2000-05-12 12:12:12','2000-05-12 12:12:12']\t" +
"[[1.12345],[1.12345],[1.12345]]\t" +
"[[1.1234567891],[1.1234567891],[1.1234567891]]\t" +
"[[[0.11111,0.11111]],[[0.22222,0.22222]],[[0.33333,0.33333]]]\t"
"[[[1,1],[1,1]],[[3,3],[3,3]],[[4,4],[5,5]]]\t"
"[[[[['winx','winx','winx']]]]]\t"
"[[[1,NULL],[NULL,1]],[[NULL,NULL],[NULL,NULL]],[[4,4],[5,5]]]\t"
"[[[[NULL]]]]\t"
"[]\n"
)
assert(result == expected)
def test_non_default_scema(started_cluster):
conn = get_postgres_conn(True)
cursor = conn.cursor()
cursor.execute('CREATE SCHEMA test_schema')
cursor.execute('CREATE TABLE test_schema.test_table (a integer)')
cursor.execute('INSERT INTO test_schema.test_table SELECT i FROM generate_series(0, 99) as t(i)')
node1.query('''
CREATE TABLE test_pg_table_schema (a UInt32)
ENGINE PostgreSQL('postgres1:5432', 'clickhouse', 'test_table', 'postgres', 'mysecretpassword', 'test_schema');
''')
result = node1.query('SELECT * FROM test_pg_table_schema')
expected = node1.query('SELECT number FROM numbers(100)')
assert(result == expected)
table_function = '''postgresql('postgres1:5432', 'clickhouse', 'test_table', 'postgres', 'mysecretpassword', 'test_schema')'''
result = node1.query('SELECT * FROM {}'.format(table_function))
assert(result == expected)
cursor.execute('''CREATE SCHEMA "test.nice.schema"''')
cursor.execute('''CREATE TABLE "test.nice.schema"."test.nice.table" (a integer)''')
cursor.execute('INSERT INTO "test.nice.schema"."test.nice.table" SELECT i FROM generate_series(0, 99) as t(i)')
node1.query('''
CREATE TABLE test_pg_table_schema_with_dots (a UInt32)
ENGINE PostgreSQL('postgres1:5432', 'clickhouse', 'test.nice.table', 'postgres', 'mysecretpassword', 'test.nice.schema');
''')
result = node1.query('SELECT * FROM test_pg_table_schema_with_dots')
assert(result == expected)
def test_concurrent_queries(started_cluster):
conn = get_postgres_conn(True)
cursor = conn.cursor()
node1.query('''
CREATE TABLE test_table (key UInt32, value UInt32)
ENGINE = PostgreSQL('postgres1:5432', 'clickhouse', 'test_table', 'postgres', 'mysecretpassword')''')
cursor.execute('CREATE TABLE test_table (key integer, value integer)')
prev_count = node1.count_in_log('New connection to postgres1:5432')
def node_select(_):
for i in range(20):
result = node1.query("SELECT * FROM test_table", user='default')
busy_pool = Pool(20)
p = busy_pool.map_async(node_select, range(20))
p.wait()
count = node1.count_in_log('New connection to postgres1:5432')
print(count, prev_count)
# 16 is default size for connection pool
assert(int(count) == int(prev_count) + 16)
def node_insert(_):
for i in range(5):
result = node1.query("INSERT INTO test_table SELECT number, number FROM numbers(1000)", user='default')
busy_pool = Pool(5)
p = busy_pool.map_async(node_insert, range(5))
p.wait()
result = node1.query("SELECT count() FROM test_table", user='default')
print(result)
assert(int(result) == 5 * 5 * 1000)
def node_insert_select(_):
for i in range(5):
result = node1.query("INSERT INTO test_table SELECT number, number FROM numbers(1000)", user='default')
result = node1.query("SELECT * FROM test_table LIMIT 100", user='default')
busy_pool = Pool(5)
p = busy_pool.map_async(node_insert_select, range(5))
p.wait()
result = node1.query("SELECT count() FROM test_table", user='default')
print(result)
assert(int(result) == 5 * 5 * 1000 * 2)
node1.query('DROP TABLE test_table;')
cursor.execute('DROP TABLE test_table;')
count = node1.count_in_log('New connection to postgres1:5432')
print(count, prev_count)
assert(int(count) == int(prev_count) + 16)
if __name__ == '__main__':
cluster.start()
input("Cluster created, press any key to destroy...")
cluster.shutdown()
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