Hi,
Regrets, I was confused with bit-set. I l have Shawn's suggested
approach in system. I want to try with other ways and test performance.
How can I use join? I have 2 different solr indexes.
localhost:8080/solr_1/select?q=content:test&fl=id,name,type
localhost:8081/solr_1_1/select?q=text:test&fl=id
After getting results - Join by id
How do I do this? please suggest me with other ways to do this. current
method is taking lot of time.
Thanks
Michael.
On Tue, Oct 15, 2013 at 11:41 PM, Erick Erickson <erickerick...@gmail.com>wrote:
> Why do you think a bitset would help? Bitsets have
> a bit set on for every document that matches
> based on the _internal_ Lucene document ID, it
> has nothing to do with the <uniqueKey> you have
> defined. Nor does it have anything to do with the
> foreign key relationship.
>
> So either I don't understand the problem at all or
> pursuing bitsets is a red herring.
>
> You might be substantially faster by sorting the
> results and then doing a skip-list sort of thing.
>
> FWIW,
> Erick
>
>
> On Mon, Oct 14, 2013 at 1:47 PM, Michael Tyler
> <michaeltyler1...@gmail.com>wrote:
>
> > Hi Shawn,
> >
> > This is time consuming operation. I already have this in my
> application .
> > I was pondering whether I can get bit set from both the solr indexes ,
> > bitset.and then retrieve only those matched? I don't know how do I
> > retrieve bitset. - wanted to try this and test the performance.
> >
> >
> > Regards
> > Michael
> >
> >
> > On Sun, Oct 13, 2013 at 8:54 PM, Shawn Heisey <s...@elyograg.org> wrote:
> >
> > > On 10/13/2013 8:34 AM, Michael Tyler wrote:
> > > > Hello,
> > > >
> > > > I have 2 different solr indexes returning 2 different sets of
> > > > SolrDocumentList. Doc Id is the foreign key relation.
> > > >
> > > > After obtaining them, I want to perform "AND" operation between them
> > and
> > > > then return results to user. Can you tell me how do I get this? I am
> > > using
> > > > solr 4.3
> > > >
> > > > SolrDocumentList results1 = responseA.getResults();
> > > > SolrDocumentList results2 = responseB.getResults();
> > > >
> > > > results1 : d1, d2, d3
> > > > results2 : d1,d2, d4
> > >
> > > The SolrDocumentList class extends ArrayList<SolrDocument>, which means
> > > that it inherits all ArrayList functionality. Unfortunately, there's
> no
> > > built-in way of eliminating duplicates with a java List. It's very
> easy
> > > to combine the two results into another object, but that object will
> > > contain both of the d1 and both of the d2 SolrDocument objects.
> > >
> > > The following code is a reasonably fast way to handle this. It assumes
> > > that results1 is the list that should win when there are duplicates, so
> > > it gets added first. It assumes that the uniqueKey field is named "id"
> > > and that it contains a String value. If these are incorrect
> > > assumptions, you can adjust the code accordingly.
> > >
> > > SolrDocumentList results1 = responseA.getResults();
> > > SolrDocumentList results2 = responseB.getResults();
> > > List<SolrDocumentList> tmpList = new ArrayList<SolrDocumentList>();
> > > tmpList.add(results1);
> > > tmpList.add(results2);
> > >
> > > Set<String> tmpSet = new HashSet<String>();
> > > SolrDocumentList newList = new SolrDocumentList();
> > > for (SolrDocumentList l : tmpList)
> > > {
> > > for (SolrDocument d : l)
> > > {
> > > String id = (String) d.get("id");
> > > if (tmpSet.contains(id)) {
> > > continue;
> > > }
> > > tmpSet.add(id);
> > > newList.add(d);
> > > }
> > > }
> > >
> > > Thanks,
> > > Shawn
> > >
> > >
> >
>
