I am confused by the documentation of the
func (db *DB) SetConnMaxLifetime(d time.Duration) that states:
SetConnMaxLifetime sets the maximum amount of time a connection may be reused.
Expired connections may be closed lazily before reuse.
Does this mean that idle connections are closed after
d has expired or that connections are closed in any case (either idle or not) after
d has expired like
Also what does closing lazily mean in this case and is it possible to implement a timeout using this method?