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https://issues.apache.org/jira/browse/CASSANDRA-4936?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13551342#comment-13551342
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Tyler Hobbs commented on CASSANDRA-4936:
----------------------------------------
I agree with all of your points. The one thing I might change are the function
names {{startOf()}} and {{endOf()}}. Since these functions are dealing with
dates and times, I think the names suggest they might be altering the time
component. Perhaps {{minTimeUUID()}} and {{maxTimeUUID()}}?
Regarding backwards compatibility: are we carefully tracking changes to CQL by
version and documenting them somewhere? These kinds of changes need to be
easily discoverable, even if they are only considered bugfixes.
> Less than operator when comparing timeuuids behaves as less than equal.
> -----------------------------------------------------------------------
>
> Key: CASSANDRA-4936
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4936
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 0.8.0
> Environment: Linux CentOS.
> Linux localhost.localdomain 2.6.18-308.16.1.el5 #1 SMP Tue Oct 2 22:01:37 EDT
> 2012 i686 i686 i386 GNU/Linux
> Reporter: Cesar Lopez-Nataren
> Assignee: Sylvain Lebresne
> Fix For: 1.2.1
>
> Attachments: 4936.txt
>
>
> If we define the following column family using CQL3:
> CREATE TABLE useractivity (
> user_id int,
> activity_id 'TimeUUIDType',
> data text,
> PRIMARY KEY (user_id, activity_id)
> );
> Add some values to it.
> And then query it like:
> SELECT * FROM useractivity WHERE user_id = '3' AND activity_id < '2012-11-07
> 18:18:22-0800' ORDER BY activity_id DESC LIMIT 1;
> the record with timeuuid '2012-11-07 18:18:22-0800' returns in the results.
> According to the documentation, on CQL3 the '<' and '>' operators are strict,
> meaning not inclusive, so this seems to be a bug.
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