pkg crypto/x509, type RevocationList struct, SignatureAlgorithm SignatureAlgorithm
pkg crypto/x509, type RevocationList struct, ThisUpdate time.Time
pkg database/sql, method (*DB) SetConnMaxIdleTime(time.Duration)
pkg database/sql, method (*Row) Err() error
pkg database/sql, type DBStats struct, MaxIdleTimeClosed int64
pkg database/sql/driver, type Validator interface { IsValid }

	}
	db.maxLifetime = d
	db.startCleanerLocked()
	db.mu.Unlock()
}

// SetConnMaxIdleTime sets the maximum amount of time a connection may be idle.
//
// Expired connections may be closed lazily before reuse.
//
// If d <= 0, connections are not closed due to a connection's idle time.
func (db *DB) SetConnMaxIdleTime(d time.Duration) {
	if d < 0 {
		d = 0
	}
	db.mu.Lock()
	defer db.mu.Unlock()

		t.Run(fmt.Sprintf("%v", item.wantMaxIdleTime), func(t *testing.T) {
			db := newTestDB(t, "people")
			defer closeDB(t, db)

			db.SetMaxOpenConns(usedConns)
			db.SetMaxIdleConns(usedConns)
			db.SetConnMaxIdleTime(item.wantMaxIdleTime)
			db.SetConnMaxLifetime(item.wantMaxLifetime)

			preMaxIdleClosed := db.Stats().MaxIdleTimeClosed

			// Busy usedConns.
			testUseConns(t, usedConns, baseTime, db)

		{"(*DB).PrepareContext", Method, 8},
		{"(*DB).Query", Method, 0},
		{"(*DB).QueryContext", Method, 8},
		{"(*DB).QueryRow", Method, 0},
		{"(*DB).QueryRowContext", Method, 8},
		{"(*DB).SetConnMaxIdleTime", Method, 15},
		{"(*DB).SetConnMaxLifetime", Method, 6},
		{"(*DB).SetMaxIdleConns", Method, 1},
		{"(*DB).SetMaxOpenConns", Method, 2},
		{"(*DB).Stats", Method, 5},
		{"(*Null).Scan", Method, 22},