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From "Russell Jurney (JIRA)" <j...@apache.org>
Subject [jira] Commented: (PIG-1310) ISO Date UDFs: Conversion, Rounding and Date Math
Date Sun, 21 Mar 2010 03:59:27 GMT

    [ https://issues.apache.org/jira/browse/PIG-1310?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12847874#action_12847874
] 

Russell Jurney commented on PIG-1310:
-------------------------------------

I'm thinking it would be good if DateTime was a Pig primitive.  Can someone give me an idea
how much work it is to add a Pig primitive, and if this patch would be accepted for 0.8?

> ISO Date UDFs: Conversion, Rounding and Date Math
> -------------------------------------------------
>
>                 Key: PIG-1310
>                 URL: https://issues.apache.org/jira/browse/PIG-1310
>             Project: Pig
>          Issue Type: New Feature
>          Components: impl
>            Reporter: Russell Jurney
>             Fix For: 0.8.0
>
>   Original Estimate: 168h
>  Remaining Estimate: 168h
>
> I've written UDFs to handle loading unix times, datemonth values and ISO 8601 formatted
date strings, and working with them as ISO datetimes using jodatime.
> The working code is here: http://github.com/rjurney/oink/tree/master/src/java/oink/udf/isodate/
> It needs to be documented and tests added, and a couple UDFs are missing, but these work
if you REGISTER the jodatime jar in your script.  Hopefully I can get this stuff in piggybank
before someone else writes it this time :)  The rounding also may not be performant, but the
code works.
> Ultimately I'd also like to enable support for ISO 8601 durations.  Someone slap me if
this isn't done soon, it is not much work and this should help everyone working with time
series.

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