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https://issues.apache.org/jira/browse/CASSANDRA-11873?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15296147#comment-15296147
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Benjamin Lerer commented on CASSANDRA-11873:
--------------------------------------------
One interesting question is what type of text representation do we want to
support for duration.
The simplest approach would be to support only a number and a time unit: days
({{d}}), hours ({{h}}), minutes ({{m}}), seconds ({{s}}), milliseconds ({{ms}})
and micro seconds ({{µs}}).
A slightly more complex one would be to allow the combination of multiple
simple expressions like: 2d8h (2 days and 8 hours).
> Add duration type
> -----------------
>
> Key: CASSANDRA-11873
> URL: https://issues.apache.org/jira/browse/CASSANDRA-11873
> Project: Cassandra
> Issue Type: Improvement
> Components: CQL
> Reporter: Benjamin Lerer
> Assignee: Benjamin Lerer
> Fix For: 3.x
>
>
> For CASSANDRA-11871 or to allow queries with {{WHERE}} clause like:
> {{... WHERE reading_time < now() - 2h}}, we need to support some duration
> type.
> In my opinion, it should be represented internally as a number of
> microseconds.
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