Hi Thanuja, The problem is not in the luciene *group by. *It works perfectly with aggregate functions such as* SUM, MIN, MAX, AVG . *But actually it didn't work with *COUNT *function.
Thanks and Regards, On Wed, Oct 7, 2015 at 12:07 AM, Thanuja Uruththirakodeeswaran < thanu...@wso2.com> wrote: > Hi Isuru, > > I think Gimantha has already discussed about this in this thread [1]. The > link suggests to do lucene 'group by' queries using writing a custom facet > collector. > > [1]. > http://mail-archives.apache.org/mod_mbox/lucene-java-user/201508.mbox/%3CCAPz8bx2j3eM9L6q=r0_XV-8=rskwct84+m3vkchhwk-hopc...@mail.gmail.com%3E > > Thanks. > > On Tue, Oct 6, 2015 at 10:59 PM, Isuru Wijesinghe <isur...@wso2.com> > wrote: > >> Hi Anjana, >> >> I think the link [1] given something similar to *where* clause in sql (I >> mean the *query *part is something similar to *where *clause). Here what >> I really need to do is, use the count operation with *group by. * In >> addition to that does luicene support for ascending and descending order >> ??? >> >> On Tue, Oct 6, 2015 at 3:54 PM, Anjana Fernando <anj...@wso2.com> wrote: >> >>> Hi Isuru, >>> >>> You can use the REST APIs search count [1] operation. >>> >>> [1] >>> https://docs.wso2.com/display/DAS300/Retrieving+the+Number+of+Records+Matching+the+Given+Search+Query+via+REST+API >>> >>> Cheers, >>> Anjana. >>> >>> On Tue, Oct 6, 2015 at 1:04 PM, Isuru Wijesinghe <isur...@wso2.com> >>> wrote: >>> >>>> Hi, >>>> >>>> I need to perform COUNT() operation through DAS REST API (an example is >>>> shown below). I tried to pass COUNT() from a luciene object. But it didn't >>>> work for me. Does DAS support COUNT operation through luciene ??? if not >>>> how can I enable it in DAS side??? >>>> >>>> eg: *SELECT startedTime, processDefinitionId, COUNT(processInstanceId) >>>> AS processInstanceCount FROM PROCESS_USAGE_SUMMARY GROUP BY startedTime, >>>> processDefinitionId;* >>>> >>>> In addition to that, is that possible to pass more than one parameter >>>> to the query part in luicene object, because most graphs have to provide a >>>> secondary filter to get the result. As an example I need to filter the >>>> result from date range as well as process id. I need something like this. >>>> >>>> *"query" : "timestamp : [1243214324532 TO 4654365223], processId : >>>> 10035" * >>>> >>>> Any help will be appreciated. >>>> >>>> -- >>>> Isuru Wijesinghe >>>> *Software Engineer* >>>> Mobile: 0710933706 >>>> isur...@wso2.com >>>> >>>> _______________________________________________ >>>> Dev mailing list >>>> Dev@wso2.org >>>> http://wso2.org/cgi-bin/mailman/listinfo/dev >>>> >>>> >>> >>> >>> -- >>> *Anjana Fernando* >>> Senior Technical Lead >>> WSO2 Inc. | http://wso2.com >>> lean . enterprise . middleware >>> >> >> >> >> -- >> Isuru Wijesinghe >> *Software Engineer* >> Mobile: 0710933706 >> isur...@wso2.com >> >> _______________________________________________ >> Dev mailing list >> Dev@wso2.org >> http://wso2.org/cgi-bin/mailman/listinfo/dev >> >> > > > -- > Thanuja Uruththirakodeeswaran > Software Engineer > WSO2 Inc.;http://wso2.com > lean.enterprise.middleware > > mobile: +94 774363167 > -- Isuru Wijesinghe *Software Engineer* Mobile: 0710933706 isur...@wso2.com
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