[jira] [Updated] (CASSANDRA-12868) MV creation allows a 'default_time_to_live' option, but ignores it

["Sylvain Lebresne (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-12868?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sylvain Lebresne updated CASSANDRA-12868:
-----------------------------------------
    Summary: MV creation allows a 'default_time_to_live' option, but ignores it  (was: TTL Configuration for Materialized view is not at all used and TTL is always used from Parent table.)

> MV creation allows a 'default_time_to_live' option, but ignores it
> ------------------------------------------------------------------
>
>                 Key: CASSANDRA-12868
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12868
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Srinivasarao Daruna
>            Priority: Minor
>              Labels: lhf
>
> Hi,
> By default, materialized views are using the TTL of primary table, irrespective of the configured value provided in materialized view creation.
> For eg:
> table:
> CREATE TABLE test2(id text, date text, col1 text,col2 text, PRIMARY KEY(id,date)) WITH default_time_to_live = 60 AND CLUSTERING ORDER BY (date DESC);
> CREATE MATERIALIZED VIEW test3_view AS
> SELECT id, date, col1
> FROM test3 
> WHERE id IS NOT NULL AND date IS NOT NULL
> PRIMARY KEY(id,date) WITH default_time_to_live = 30;
> The queries are accepted in CQL. As per the detail, it should use 30 seconds for Materialized view and 60 seconds for parent table.
> But, it is always 60 seconds (as the parent table)
> case 1: 
> parent table and materialized view with different TTL
> MV will always have the TTL of parent.
> case 2:
> Parent table without TTL but materialized view with TTL
> MV does not have the TTL even though the configuration has been accepted in the table creation.
> Expected:
> Either the TTL configuration should not be accepted in the materialized view creation, if it is of no value.
> Or
> TTL has to be applied differently for both Materialized View and Table if the configuration is added.
> If no configuration, TTL has to be taken from the parent table. 



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