mirror of
https://github.com/ClickHouse/ClickHouse.git
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139 lines
6.2 KiB
Python
139 lines
6.2 KiB
Python
import time
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import pytest
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import psycopg2
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from helpers.cluster import ClickHouseCluster
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from helpers.test_tools import assert_eq_with_retry
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from psycopg2.extensions import ISOLATION_LEVEL_AUTOCOMMIT
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cluster = ClickHouseCluster(__file__)
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node1 = cluster.add_instance('node1', main_configs=[], with_postgres=True)
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def get_postgres_conn(database=False):
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if database == True:
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conn_string = "host='localhost' dbname='clickhouse' user='postgres' password='mysecretpassword'"
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else:
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conn_string = "host='localhost' user='postgres' password='mysecretpassword'"
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conn = psycopg2.connect(conn_string)
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conn.set_isolation_level(ISOLATION_LEVEL_AUTOCOMMIT)
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conn.autocommit = True
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return conn
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def create_postgres_db(conn, name):
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cursor = conn.cursor()
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cursor.execute("CREATE DATABASE {}".format(name))
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@pytest.fixture(scope="module")
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def started_cluster():
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try:
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cluster.start()
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postgres_conn = get_postgres_conn()
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print("postgres connected")
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create_postgres_db(postgres_conn, 'clickhouse')
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yield cluster
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finally:
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cluster.shutdown()
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def test_postgres_select_insert(started_cluster):
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conn = get_postgres_conn(True)
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cursor = conn.cursor()
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table_name = 'test_many'
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table = '''postgresql('postgres1:5432', 'clickhouse', '{}', 'postgres', 'mysecretpassword')'''.format(table_name)
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cursor.execute('CREATE TABLE IF NOT EXISTS {} (a integer, b text, c integer)'.format(table_name))
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result = node1.query('''
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INSERT INTO TABLE FUNCTION {}
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SELECT number, concat('name_', toString(number)), 3 from numbers(10000)'''.format(table))
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check1 = "SELECT count() FROM {}".format(table)
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check2 = "SELECT Sum(c) FROM {}".format(table)
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check3 = "SELECT count(c) FROM {} WHERE a % 2 == 0".format(table)
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check4 = "SELECT count() FROM {} WHERE b LIKE concat('name_', toString(1))".format(table)
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assert (node1.query(check1)).rstrip() == '10000'
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assert (node1.query(check2)).rstrip() == '30000'
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assert (node1.query(check3)).rstrip() == '5000'
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assert (node1.query(check4)).rstrip() == '1'
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def test_postgres_conversions(started_cluster):
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conn = get_postgres_conn(True)
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cursor = conn.cursor()
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cursor.execute(
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'''CREATE TABLE IF NOT EXISTS test_types (
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a smallint, b integer, c bigint, d real, e double precision, f serial, g bigserial,
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h timestamp, i date, j numeric(5, 5), k decimal(5, 5))''')
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node1.query('''
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INSERT INTO TABLE FUNCTION postgresql('postgres1:5432', 'clickhouse', 'test_types', 'postgres', 'mysecretpassword') VALUES
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(-32768, -2147483648, -9223372036854775808, 1.12345, 1.1234567890, 2147483647, 9223372036854775807, '2000-05-12 12:12:12', '2000-05-12', 0.2, 0.2)''')
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result = node1.query('''
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SELECT * FROM postgresql('postgres1:5432', 'clickhouse', 'test_types', 'postgres', 'mysecretpassword')''')
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assert(result == '-32768\t-2147483648\t-9223372036854775808\t1.12345\t1.123456789\t2147483647\t9223372036854775807\t2000-05-12 12:12:12\t2000-05-12\t0.20000\t0.20000\n')
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cursor.execute(
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'''CREATE TABLE IF NOT EXISTS test_array_dimensions
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(
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a Date[] NOT NULL, -- Date
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b Timestamp[] NOT NULL, -- DateTime
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c real[][] NOT NULL, -- Float32
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d double precision[][] NOT NULL, -- Float64
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e decimal(5, 5)[][][] NOT NULL, -- Decimal32
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f integer[][][] NOT NULL, -- Int32
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g Text[][][][][] NOT NULL, -- String
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h Integer[][][], -- Nullable(Int32)
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i Char(2)[][][][], -- Nullable(String)
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k Char(2)[] -- Nullable(String)
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)''')
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result = node1.query('''
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DESCRIBE TABLE postgresql('postgres1:5432', 'clickhouse', 'test_array_dimensions', 'postgres', 'mysecretpassword')''')
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expected = ('a\tArray(Date)\t\t\t\t\t\n' +
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'b\tArray(DateTime)\t\t\t\t\t\n' +
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'c\tArray(Array(Float32))\t\t\t\t\t\n' +
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'd\tArray(Array(Float64))\t\t\t\t\t\n' +
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'e\tArray(Array(Array(Decimal(5, 5))))\t\t\t\t\t\n' +
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'f\tArray(Array(Array(Int32)))\t\t\t\t\t\n' +
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'g\tArray(Array(Array(Array(Array(String)))))\t\t\t\t\t\n' +
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'h\tArray(Array(Array(Nullable(Int32))))\t\t\t\t\t\n' +
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'i\tArray(Array(Array(Array(Nullable(String)))))\t\t\t\t\t\n' +
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'k\tArray(Nullable(String))'
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)
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assert(result.rstrip() == expected)
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node1.query("INSERT INTO TABLE FUNCTION postgresql('postgres1:5432', 'clickhouse', 'test_array_dimensions', 'postgres', 'mysecretpassword') "
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"VALUES ("
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"['2000-05-12', '2000-05-12'], "
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"['2000-05-12 12:12:12', '2000-05-12 12:12:12'], "
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"[[1.12345], [1.12345], [1.12345]], "
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"[[1.1234567891], [1.1234567891], [1.1234567891]], "
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"[[[0.11111, 0.11111]], [[0.22222, 0.22222]], [[0.33333, 0.33333]]], "
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"[[[1, 1], [1, 1]], [[3, 3], [3, 3]], [[4, 4], [5, 5]]], "
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"[[[[['winx', 'winx', 'winx']]]]], "
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"[[[1, NULL], [NULL, 1]], [[NULL, NULL], [NULL, NULL]], [[4, 4], [5, 5]]], "
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"[[[[NULL]]]], "
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"[]"
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")")
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result = node1.query('''
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SELECT * FROM postgresql('postgres1:5432', 'clickhouse', 'test_array_dimensions', 'postgres', 'mysecretpassword')''')
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expected = (
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"['2000-05-12','2000-05-12']\t" +
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"['2000-05-12 12:12:12','2000-05-12 12:12:12']\t" +
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"[[1.12345],[1.12345],[1.12345]]\t" +
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"[[1.1234567891],[1.1234567891],[1.1234567891]]\t" +
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"[[[0.11111,0.11111]],[[0.22222,0.22222]],[[0.33333,0.33333]]]\t"
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"[[[1,1],[1,1]],[[3,3],[3,3]],[[4,4],[5,5]]]\t"
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"[[[[['winx','winx','winx']]]]]\t"
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"[[[1,NULL],[NULL,1]],[[NULL,NULL],[NULL,NULL]],[[4,4],[5,5]]]\t"
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"[[[[NULL]]]]\t"
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"[]\n"
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)
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assert(result == expected)
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if __name__ == '__main__':
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cluster.start()
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input("Cluster created, press any key to destroy...")
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cluster.shutdown()
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