For psycopg2 support you must install either:
-
psycopg2, which has some prerequisites of its own.
(The binary package is a practical choice for development and testing but in production it is advised to use the package built from sources.)
Or, for asyncpg support (experimental) you must install
Use pip to install the latest version.
pip install sqlalchemy-cockroachdb
Use a cockroachdb connection string when creating the Engine. For example,
to connect to an insecure, local CockroachDB cluster using psycopg2:
from sqlalchemy import create_engine
engine = create_engine('cockroachdb://root@localhost:26257/defaultdb?sslmode=disable')
or
from sqlalchemy import create_engine
engine = create_engine('cockroachdb+psycopg2://root@localhost:26257/defaultdb?sslmode=disable')
To connect using asyncpg:
from sqlalchemy import create_async_engine
engine = create_async_engine('cockroachdb+asyncpg://root@localhost:26257/defaultdb')
See CHANGES.md