CGroup from Oracle Materialized view

Question

Hi
I'm trying to create a User Manage Cgroup in timesten from a oracle mview....
When execute "create .. cache group command" this error message appears
Command> CREATE USERMANAGED CACHE GROUP "cg_ser_lin"
> AUTOREFRESH MODE INCREMENTAL INTERVAL 10 MINUTES
> STATE PAUSED
> FROM
"MARTINEL"."v_SER_LIN" (
> "MARTINEL"."v_SER_LIN" (
"NUM_LINE" CHAR(12 BYTE) NOT NULL,
"COD_serv" CHAR(10 BYTE) NOT NULL,
> "NUM_LINE" CHAR(12 BYTE) NOT NULL,
> "COD_serv" CHAR(10 BYTE) NOT NULL,
> "fec_term" date not null,
> PRIMARY KEY("NUM_LINE","COD_serv"), READONLY
>
> );
5120: No matching unique index with not null columns, unique key constraint with not null columns, or primary key constraint on table MARTINEL.V_SER_LIN, cache operations are restricted
5168: Restricted cache groups are deprecated
5126: A system managed cache group cannot contain non-standard column type mapping
The command failed.
The mview definition is :
create materialized view v_ser_lin
parallel 3
nologging
refresh complete
start with sysdate next SYSDATE + 30/1440
as
select /*+ index (s ser_pk)*/sl.num_line, s.cod_serv,SL.FEC_INIC,SL.FEC_TERM
from servicios s, ser_lin sl
where
s.cod_serv = sl.cod_prod
and
s.flg_cons='S'
and
s.flg_switch='S';

Answer 1

TimesTen does not currently support caching of Oracle materializesed views. The only objects that a cache group can be defined on are actual tables.
Also, any Oracle table that will be cached must have a primary key defined in Oracle.
Chris