![]() ![]() > # A notification is a tuple containing (backend_pid, channel, payload) Similarly there are Connection.notifications for notifications andĬonnection.parameter_statuses for changes to the server configuration. Stored in a deque called Connection.notices and added using the append() If the JSON you want to send is a dict then you can > con.run("SET CLIENT_ENCODING TO 'UTF8'")įrom the server de-serialized. setting CLIENT_ENCODING in nf).Īnother way of changing the client encoding is by using an SQL command. By default the client encoding is the database’sĬharacter set (chosen when the database is created), but the client encoding can beĬhanged in a number of ways (eg. When communicating with the server, pg8000 uses the character set that the server asks > con.run("SELECT TO_CHAR(TIMESTAMP '', 'YYYY BC')")Ī query that returns the PostgreSQL interval type: > import pg8000.native pg8000 attempts to detect when this has happened and raise anĪnother query, using some PostgreSQL functions: > import pg8000.native Transaction, the transaction is silently rolled back, rather than an error being In the PostgreSQL server whereby if a COMMIT is issued against a failed > con.run("DELETE FROM book WHERE title = :title", title="Phineas Finn") Rolling back a transaction: > import pg8000.native > for title in ("Ender's Game", "The Magus", "Phineas Finn"): Here’s how to run groups of SQL statements in a > for row in con.run("SELECT * FROM book"): con.run("INSERT INTO book (title) VALUES (:title)", title=title) > for title in ("Ender's Game", "The Magus"): > con.run("CREATE TEMPORARY TABLE book (id SERIAL, title TEXT)") > # Connect to the database with user name postgres Import pg8000, connect to the database, create a table, add some rows and then ![]() These are the examples for the native API, and the DB-API 2.0 examplesįollow in the next section. Pg8000 comes with two APIs, the native pg8000 API and the DB-API 2.0 standardĪPI. Pip install pg8000 Native API Interactive Examples (user, host=’localhost’, database=None, port=5432, password=None, source_address=None, unix_sock=None, ssl_context=None, timeout=None, tcp_keepalive=True, application_name=None, replication=None, sock=None) Use Environment Variables As Connection Defaults Many SQL Statements Can’t Be ParameterizedĬustom adapter from a Python type to a PostgreSQL typeĬustom adapter from a PostgreSQL type to a Python typeĬould Not Determine Data Type Of Parameter Pg8000 is distributed under the BSD 3-clause license.Īll bug reports, feature requests and contributions are welcome at pg8000’s name comesįrom the belief that it is probably about the 8000th PostgreSQL interface for Python. Versions 3.8+, on CPython and PyPy, and PostgreSQL versions 11+. Pg8000 is a pure- Python PostgreSQL driver that complies with ![]()
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