Pre-General Availability Draft: 2018-03-19
To use the first method, you must specify the
CONNECTION string after the engine type in a
CREATE TABLE statement. For
CREATE TABLE federated_table ( id INT(20) NOT NULL AUTO_INCREMENT, name VARCHAR(32) NOT NULL DEFAULT '', other INT(20) NOT NULL DEFAULT '0', PRIMARY KEY (id), INDEX name (name), INDEX other_key (other) ) ENGINE=FEDERATED DEFAULT CHARSET=utf8mb4 CONNECTION='mysql://fed_user@remote_host:9306/federated/test_table';
CONNECTION replaces the
COMMENT used in some previous versions of
CONNECTION string contains the
information required to connect to the remote server containing
the table that will be used to physically store the data. The
connection string specifies the server name, login credentials,
port number and database/table information. In the example, the
remote table is on the server
using port 9306. The name and port number should match the host
name (or IP address) and port number of the remote MySQL server
instance you want to use as your remote table.
The format of the connection string is as follows:
scheme: A recognized connection protocol. Only
mysqlis supported as the
schemevalue at this point.
user_name: The user name for the connection. This user must have been created on the remote server, and must have suitable privileges to perform the required actions (
UPDATE, and so forth) on the remote table.
password: (Optional) The corresponding password for
host_name: The host name or IP address of the remote server.
port_num: (Optional) The port number for the remote server. The default is 3306.
db_name: The name of the database holding the remote table.
tbl_name: The name of the remote table. The name of the local and the remote table do not have to match.
Sample connection strings:
CONNECTION='mysql://username:password@hostname:port/database/tablename' CONNECTION='mysql://username@hostname/database/tablename' CONNECTION='mysql://username:password@hostname/database/tablename'