As of MySQL 5.6.6, application programs can provide key/value
connection attributes to be passed to the server at connect
time, using the
mysql_options() and
mysql_options4() C API
functions.
The session_account_connect_attrs
table contains connection attributes only for sessions open
for your own account. To see connection attributes for all
sessions, look in the
session_connect_attrs table. For
descriptions of common attributes, see
Section 22.10.8, “Performance Schema Connection Attribute Tables”.
The session_account_connect_attrs
table contains these columns:
PROCESSLIST_ID
The connection identifier for the session.
ATTR_NAME
The attribute name.
ATTR_VALUE
The attribute value.
ORDINAL_POSITION
The order in which the attribute was added to the set of connection attributes.
TRUNCATE TABLE is not permitted
for the
session_account_connect_attrs
table.