Yes, it's ok, but if you have secondary indexes, make sure to set the same TTL on them as well (just tack on the same TTL=691200 at the end of your CREATE INDEX statement).

On Tue, Jul 14, 2015 at 1:48 PM, Serega Sheypak <serega.sheypak@gmail.com> wrote:
Hi, here is my table

CREATE TABLE IF NOT EXISTS cross_id_reference
(
  id1        VARCHAR   NOT NULL,
  id2        VARCHAR   NOT NULL,
   CONSTRAINT my_pk  PRIMARY KEY (id1)
) IMMUTABLE_ROWS=true,  TTL=691200;

Is it ok to set TTL and IMMUTABLE_ROWS at the same time? TTL should delete expired rows. Will it damage IMMUTABLE_ROWS feature?