Application programs can provide key-value connection attributes to be passed to the server at connect time. For descriptions of common attributes, see Section 10.9, “Performance Schema Connection Attribute Tables”.
table contains connection attributes only for the current
session, and other sessions associated with the session
account. To see connection attributes for all sessions, use
table has these columns:
The connection identifier for the session.
The attribute name.
The attribute value.
The order in which the attribute was added to the set of connection attributes.
TRUNCATE TABLE is not permitted