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https://issues.apache.org/jira/browse/CASSANDRA-11936?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15852007#comment-15852007
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Alex Petrov commented on CASSANDRA-11936:
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Thank you for the patch, a couple of very small things:
* Why does {{TimeType}} not support to/from nanoseconds conversion
(subsequently, also addition and subtraction operations..
* Do you think it's better skip supporting for simple date + sub-day sums?
It'll currently throw an exception, although it could've been just an identity
function on the first arg..
* {{hasMillisecondPrecision}} has a [copy-pasted
comment|https://github.com/apache/cassandra/compare/cassandra-3.X...blerer:11936-3.X#diff-5cadfa6d134cd8bbd2c32874ac577c55R366]
> Add support for + and - operations on dates
> -------------------------------------------
>
> Key: CASSANDRA-11936
> URL: https://issues.apache.org/jira/browse/CASSANDRA-11936
> Project: Cassandra
> Issue Type: Sub-task
> Components: CQL
> Reporter: Benjamin Lerer
> Assignee: Benjamin Lerer
> Fix For: 3.x
>
>
> For time series it can be interesting to allow queries with {{WHERE}} clause
> like: {{... WHERE reading_time < now() - 2h}}
> In order to do that we need to add support for: {{+}} and {{-}} operation
> with date.
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