[jira] [Updated] (CASSANDRA-17681) CQL function writetime should not be allowed to apply on UDT columns

["Yifan Cai (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-17681?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yifan Cai updated CASSANDRA-17681:
----------------------------------
     Bug Category: Parent values: Correctness(12982)Level 1 values: API / Semantic Implementation(12988)
       Complexity: Low Hanging Fruit
    Discovered By: Code Inspection
         Severity: Low
           Status: Open  (was: Triage Needed)

> CQL function writetime should not be allowed to apply on UDT columns
> --------------------------------------------------------------------
>
>                 Key: CASSANDRA-17681
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-17681
>             Project: Cassandra
>          Issue Type: Bug
>          Components: CQL/Semantics
>            Reporter: Yifan Cai
>            Priority: Normal
>
> The CQL function writetime is disallowed to be applied to multi-cell columns, since no meaningful writetime can be determined from the cells. 
> Inspecting the code (i.e. WritetimeOrTTL#newSelectorFactory), it only check whether the column type is collection, ignoring the case of UDT. See the example below. 
> It should be fixed. 
> {code:java}
> [cqlsh 6.1.0 | Cassandra 4.2-SNAPSHOT | CQL spec 3.4.5 | Native protocol v5]
> cqlsh> CREATE TYPE test.my_udt (a int, b int);
> cqlsh> CREATE TABLE test.tbl_wt (k int primary key, t test.my_udt);
> cqlsh> INSERT INTO test.tbl_wt (k, t) VALUES (1, { a: 1, b: 1 } );
> cqlsh> SELECT writetime(t) FROM test.tbl_wt WHERE k = 1;
> writetime(t)
> --------------
> -1
> (1 rows)
> {code}



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