Performance Schema session_account_connect_attrs Table

MariaDB starting with 10.0.5

The session_account_connect_attrs: table was added in MariaDB 10.0 (along with many other new Performance Schema tables).

Description

The session_account_connect_attrs table shows connection attributes for the current session.

In MariaDB 10.0.5, applications can pass key/value connection attributes to the server when a connection is made. The session_connect_attrs and session_account_connect_attrs tables provide access to this information, for all sessions and the current session respectively.

The C API functions mysql_options() and mysql_optionsv() are used for passing connection attributes to the server.

session_account_connect_attrs contains the following columns:

ColumnDescription
PROCESSLIST_IDSession connection identifier.
ATTR_NAMEAttribute name.
ATTR_VALUEAttribute value.
ORDINAL_POSITIONOrder in which attribute was added to the connection attributes.

Example

SELECT * FROM performance_schema.session_account_connect_attrs;
+----------------+-----------------+------------------+------------------+
| PROCESSLIST_ID | ATTR_NAME       | ATTR_VALUE       | ORDINAL_POSITION |
+----------------+-----------------+------------------+------------------+
|             45 | _os             | debian-linux-gnu |                0 |
|             45 | _client_name    | libmysql         |                1 |
|             45 | _pid            | 7711             |                2 |
|             45 | _client_version | 10.0.5           |                3 |
|             45 | _platform       | x86_64           |                4 |
|             45 | program_name    | mysql            |                5 |
+----------------+-----------------+------------------+------------------+

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