[Developers] MQL license?

[Roland Bouman]

Hi Reilly!

On Mon, Jun 8, 2009 at 5:38 PM, Reilly Hayes<rfh at metaweb.com> wrote:
> I should be able to get an answer for you on this in the next 24 hours.

Thanks, that's great!

I appreciate your effort to clear this up.

kind regards,

ROland.


>
> Reilly Hayes
> VP, Data
> Metaweb
>
>
>
> On Jun 8, 2009, at 8:31 AM, Roland Bouman wrote:
>
>> Hi Marc, all,
>>
>> On Mon, Jun 8, 2009 at 4:52 PM, Marc Slayton<marc at metaweb.com> wrote:
>>>
>>> I can't really speak to your question (sorry), but I am curious as to
>>> what kind of engine (besides Freebase) you would want to speak MQL.
>>> It's an interesting idea.
>>
>> I'm developing RDBMS-based AJAX applications, and for many purposes I
>> prefer to use JSON to send results to the client. Now I find that I am
>> always losing some time developing a protocol. This is usually quite
>> simple but I'm always dealing with these questions like: "shall I use
>> some REST schema? Perhaps some things are easier dealt with using the
>> query part of the URI?" For the response I am usually dealing with
>> plain tabular results, but then I need to ask myself: "Shall I allow
>> metadata to be returned as part of the response?". And there are some
>> times when tabular results are less than optimal - sometimes I really
>> need to get a collection of objects, which may themselves have
>> collections of objects, etc.
>>
>> Well, MQL seems to solve all these issues. I read the specification,
>> and although I realize MQL was not designed for the task, I think that
>> in many cases if will be possible to map MQL statements (or at least,
>> a reasonable usable subset) to a RDBMS without the need for too much
>> book keeping (i mean custom metadata to fit the MQL model) at the
>> server side.
>>
>> So a very simple solution would be something like PHP script of
>> Javaservlet that can interpret MQL, generate and execute the
>> appropriate SQL statements, and then bunch up the data, wrap in JSON
>> and return it in the response.
>> I'm just trying to figure out whether such a script/servlet would
>> violate a patent or terms of use.
>>
>>>
>>> What if MQL were released under a GNU style license?  I suppose
>>> the product you propose would then need to be opensource as well?
>>
>> I'm not sure whether its possible to release a language specification
>> as GPL. I am not a licensing expert.
>>
>>
>>>
>>> I'm not really part of the discussion -- just curious in general.
>>
>> Thanks for asking, and kind regards,
>>
>> Roland
>>
>>>
>>>
>>>> I just would like to know whether I'm free to create a query engine that
>>>> speaks MQL.
>>>
>>> _______________________________________________
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>>> Developers at freebase.com
>>> http://lists.freebase.com/mailman/listinfo/developers
>>>
>>
>>
>>
>> --
>> Roland Bouman
>> http://rpbouman.blogspot.com/
>>
>> Author of "Pentaho Solutions: Business Intelligence and Data
>> Warehousing with Pentaho and MySQL",
>> http://www.wiley.com/WileyCDA/WileyTitle/productCd-0470484322.html
>> _______________________________________________
>> Developers mailing list
>> Developers at freebase.com
>> http://lists.freebase.com/mailman/listinfo/developers
>
>
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-- 
Roland Bouman
http://rpbouman.blogspot.com/

Author of "Pentaho Solutions: Business Intelligence and Data
Warehousing with Pentaho and MySQL",
http://www.wiley.com/WileyCDA/WileyTitle/productCd-0470484322.html