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ClickHouse Python Driver

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ClickHouse Python Driver with native (TCP) interface support.

Asynchronous wrapper is available here: https://github.com/mymarilyn/aioch

Features

  • External data for query processing.
  • Query settings.
  • Compression support.
  • TLS support (since server version 1.1.54304).
  • Types support:
    • Float32/64
    • [U]Int8/16/32/64
    • Date/DateTime('timezone')
    • String/FixedString(N)
    • Enum8/16
    • Array(T)
    • Nullable(T)
    • UUID
    • Decimal
  • Query progress information.
  • Block by block results streaming.
  • Reading query profile info.
  • Receiving server logs.

Usage

>>> from clickhouse_driver import Client
>>>
>>> client = Client('localhost')
>>>
>>> client.execute('SHOW TABLES')
[('test',)]
>>>
>>> client.execute('DROP TABLE IF EXISTS test')
[]
>>>
>>> client.execute('CREATE TABLE test (x Int32) ENGINE = Memory')
[]
>>>
>>> client.execute(
...     'INSERT INTO test (x) VALUES',
...     [{'x': 100}]
... )
>>> client.execute('INSERT INTO test (x) VALUES', [[200]])
>>>
>>> client.execute(
...     'INSERT INTO test (x) '
...     'SELECT * FROM system.numbers LIMIT %(limit)s',
...     {'limit': 3}
... )
[]
>>>
>>> client.execute('SELECT sum(x) FROM test')
[(303,)]

Documentation

Documentation is available at https://clickhouse-driver.readthedocs.io.

License

ClickHouse Python Driver is distributed under the MIT license.