Method check_connection

psycopg_pool/psycopg_pool/pool.py:549–566

A simple check to verify that a connection is still working. Return quietly if the connection is still working, otherwise raise an exception. Used internally by `check()`, but also available for client usage, for instance as `!check` callback when a pool is

(conn: CT)

    @staticmethod
    def check_connection(conn: CT) -> None:
        """
        A simple check to verify that a connection is still working.

        Return quietly if the connection is still working, otherwise raise
        an exception.

        Used internally by `check()`, but also available for client usage,
        for instance as `!check` callback when a pool is created.
        """
        if conn.autocommit:
            conn.execute("")
        else:
            conn.autocommit = True
            try:
                conn.execute("")
            finally:
                conn.autocommit = False

    def reconnect_failed(self) -> None:
        """