Am 07.02.12 11:13, schrieb Li Li:
> is the jsr implemented yet?
AFAIK it's not complete, but since Jackrabbit is also using Lucene and
considering posts like for example
http://jackrabbit.510166.n4.nabble.com/Need-a-complete-JCR-JQOM-example-query-td3944788.html
I would assume there is some active development.
HTH
Michael
> I think I could first define this language by bnf and then use javacc
> or antlr to implement.
> I have recently written a query rewriter component for our products
> which defines regular expression like language that can rewrite querys.
> . and also we can learn something from http://jsqlparser.sourceforge.net/
> I have experimented it to check sql injections.
>
> On Tue, Feb 7, 2012 at 5:54 PM, Michael Wechner
> <michael.wechner@wyona.com <mailto:michael.wechner@wyona.com>> wrote:
>
> Am 07.02.12 10:43, schrieb Li Li:
>> I just want solr providing this new feature and also want to
>> know whether any other users need this feature. if possible, I'd
>> like to participate in it.
>
> sounds good. I would also be interested in such a functionality. I
> think the first step would be to define a mapping between sql and
> lucene queries (without actually implementing it) and check
> whether and how this is possible.
>
> It might be interesting to have a look at how jackrabbit is doing
> it with
>
> http://www.day.com/specs/jcr/2.0/6_Query.html
>
> HTH
>
> Michael
>
>>
>> On Tue, Feb 7, 2012 at 5:31 PM, Michael Wechner
>> <michael.wechner@wyona.com <mailto:michael.wechner@wyona.com>> wrote:
>>
>> Am 07.02.12 10:24, schrieb Li Li:
>>
>> hi all,
>> we have used solr to provide searching service in many
>> products. I found for each product, we have to do some
>> configurations and query expressions.
>> our users are not used to this. they are familiar with
>> sql and they may describe like this: I want a query that
>> can search books whose title contains java, and I will
>> group these books by publishing year and order by
>> matching score and freshness, the weight of score is 2
>> and the weight of freshness is 1.
>> maybe they will be happy if they can use sql like
>> statements to convey their needs.
>> select * from books where title contains java group by
>> pub_year order by score^2, freshness^1
>> also they may like they can insert or delete documents
>> by delete from books where title contains java and
>> pub_year between 2011 and 2012.
>> we can define some language similar to sql and
>> translate the to solr query string such as
>> .../select/?q=+title:java^2 +pub_year:2011....
>> this may be equivalent to apache hive for hadoop.
>>
>>
>> It's not clear to me whether you are asking a question or
>> making a comment. Can you rephrase?
>>
>> Thanks
>>
>> Michael
>>
>>
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