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Posted to commits@cassandra.apache.org by "Yifan Cai (Jira)" <ji...@apache.org> on 2022/05/16 19:53:00 UTC

[jira] [Comment Edited] (CASSANDRA-17425) Add new CQL function maxWritetime

    [ https://issues.apache.org/jira/browse/CASSANDRA-17425?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17537642#comment-17537642 ] 

Yifan Cai edited comment on CASSANDRA-17425 at 5/16/22 7:52 PM:
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Started pre-commit CI: 

j11: [https://app.circleci.com/pipelines/github/yifan-c/cassandra/347/workflows/7e66281e-6309-42a8-bc44-d00f0f0a8a9b]
j8: [https://app.circleci.com/pipelines/github/yifan-c/cassandra/347/workflows/1274f8b6-560b-4c3e-96ec-a833868246fc]

There are 2 test failures. 
- CASSANDRA-17291: testTokenGenerator_single_rack_or_single_rf
- test_cql_reserved_keywords (I need to update the dtest)


was (Author: yifanc):
Started pre-commit CI: 

j11: [https://app.circleci.com/pipelines/github/yifan-c/cassandra/347/workflows/7e66281e-6309-42a8-bc44-d00f0f0a8a9b]
j8: [https://app.circleci.com/pipelines/github/yifan-c/cassandra/347/workflows/1274f8b6-560b-4c3e-96ec-a833868246fc]

 

> Add new CQL function maxWritetime
> ---------------------------------
>
>                 Key: CASSANDRA-17425
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-17425
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: CQL/Syntax
>            Reporter: Yifan Cai
>            Assignee: Yifan Cai
>            Priority: Normal
>             Fix For: 4.x
>
>          Time Spent: 2h 20m
>  Remaining Estimate: 0h
>
> The function "writetime" does not support multi-cell types, e.g. collections and UDT. It would be useful to enable querying the latest modified timestamp of a column value. 
> I'd like to propose to add a new function named "maxWritetime", which returns the largest timestamp amongst the cells. When being applied to the single cell types, it returns the same result as "writetime".



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