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From Lefty Leverenz <leftylever...@gmail.com>
Subject Re: MatchPath UDF usage info ?
Date Thu, 04 Sep 2014 00:32:23 GMT
MatchPath.java still exists in Hive trunk and release 0.13.1
(ql/src/java/org/apache/hadoop/hive/ql/udf/ptf/MatchPath.java).

-- Lefty


On Wed, Sep 3, 2014 at 12:39 PM, Muhammad Asif Abbasi <asif.abbasi@gmail.com
> wrote:

> Hi Furcy,
>
> Many thanks for your email :)
>
> My latest info was that the rename took place due to objections by
> Teradata, but didn't know if they had actually requested to take it off the
> distribution entirely.
>
> Does anybody else have an idea on the licensing aspect of this? What
> exactly has Teradata patented? Is it the technique to parse the rows in a
> such a manner? Any tips/techniques would be highly appreciated.
>
> Regards,
> Asif Abbasi
>
>
>
>
> On Wed, Sep 3, 2014 at 5:30 PM, Furcy Pin <furcy.pin@flaminem.com> wrote:
>
>> Hi Muhammad,
>>
>> From what I've googled a few months ago on the subject, MatchPath UDF has
>> been removed from Cloudera and Hortonworks releases because TeraData
>> claims it violates one of their patent (apparently renaming it did not
>> suffice).
>>
>> I guess that if you really need it, it might be possible to add it
>> yourself as an external UDF since the code is still available out there,
>> but I have no idea
>> whether TeraData would have the right to come after you (or not?) if you
>> do.
>>
>> By the way, if anyone has news on the current situation with MatchPath
>> and TerraData, that would be welcome.
>>
>> Furcy
>>
>>
>>
>>
>> 2014-09-03 17:18 GMT+02:00 Muhammad Asif Abbasi <asif.abbasi@gmail.com>:
>>
>> Hi,
>>>
>>> Many thanks for sending these links. Looking forward to more
>>> documentation around this.
>>>
>>> BTW, why does " hive-exec-0.13.0.2.1.1.0-385.jar" not have any class
>>> files for MatchPath UDF ? Have they been chucked out to a separate JAR
>>> file?
>>> I can see that " hive-exec-0.13.0.jar" has the appropriate class files,
>>> and have tried to use them. They work well with the demo data set but we
>>> certainly need more documentation around this.
>>>
>>> Regards,
>>> Asif Abbasi
>>>
>>>
>>>
>>>
>>> On Tue, Aug 26, 2014 at 6:42 AM, Lefty Leverenz <leftyleverenz@gmail.com
>>> > wrote:
>>>
>>>> Thanks for pointing out that we still need documentation for this in
>>>> the wiki.  (I've added a doc comment to HIVE-5087
>>>> <https://issues.apache.org/jira/browse/HIVE-5087>.)  In the meantime,
>>>> googling "Hive npath" turned up these sources of information:
>>>>
>>>>    - https://github.com/hbutani/SQLWindowing/wiki
>>>>    -
>>>>    http://www.slideshare.net/Hadoop_Summit/analytical-queries-with-hive (slides
>>>>    20-21)
>>>>    -
>>>>
>>>>    http://www.justinjworkman.com/big-data/using-npath-with-apache-hive/
>>>>
>>>>
>>>> -- Lefty
>>>>
>>>>
>>>> On Mon, Aug 25, 2014 at 8:27 AM, Muhammad Asif Abbasi <
>>>> asif.abbasi@gmail.com> wrote:
>>>>
>>>>> Hi All,
>>>>>
>>>>> I am trying to use MatchPath UDF (Previously called NPath). Does
>>>>> anybody have a document around its syntax and usage?
>>>>>
>>>>> Regards,
>>>>> Asif
>>>>>
>>>>
>>>>
>>>
>>
>

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