update a row which was inserted with 'IF NOT EXISTS' key word will fail siently

CREATE KEYSPACE scheduler WITH replication = {'class': 'SimpleStrategy', 'replication_factor': '1'}  AND durable_writes = true;

CREATE TABLE scheduler.job_info (
    id timeuuid PRIMARY KEY,
    create_time int,
    cur_retry int,
    cur_run_times int,
    expire_time int,
    max_retry int,
    max_run_times int,
    payload text,
    period int,
    retry_interval int,
    status tinyint,
    topic text,
    type text,
    update_time int
) with caching = {'keys':'ALL', 'rows_per_partition':'NONE'};

insert into job_info (id, create_time) values (5be224c6-8231-11e7-9619-9801b2a97471, 0) IF NOT EXISTS;
insert into job_info (id, create_time) values (5be224c6-8231-11e7-9619-9801b2a97471, 1);
select * from job_info;