Application programs can provide key-value connection attributes to be passed to the server at connect time. For descriptions of common attributes, see Section 27.12.9, “Performance Schema Connection Attribute Tables”.
contains connection attributes for all sessions. To see
connection attributes only for the current session, and other
sessions associated with the session account, use the
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.
has these indexes:
Primary key on (