The doc IDs should be consistent *unless* you did anything to the index, things you might not think would change anything. For instance, any kind of commit (assuming you'd ever deleted a document, say). etc.
So if you haven't changed your index at all, your doc IDs won't change. But as I said, some operations you don't think would change your doc IDs actually will.... HTH Erick On Fri, Nov 20, 2009 at 10:17 AM, it99 <deswiatlow...@syrres.com> wrote: > > Thanks that helped a lot with the speed!! > I am getting same search results but with different docIds. Is this > expected > and OK? Are they just arbitrar numbers > > If I changed from > Hits hits = mSearcher.search(query, filter); > > > To the following > TopDocCollector collector = new TopDocCollector(1000000); > mSearcher.search(query, filter,collector); > hits = collector.topDocs().scoreDocs; > > > > > > > > Ian Lea wrote: > > > > First queries are often slow and subsequent ones faster. Search the > > list for warming - I think there was something on it in the last > > couple of days. Or read the "When measuring performance, disregard > > the first query" bit of > > http://wiki.apache.org/lucene-java/ImproveSearchingSpeed > > > > A good number to pass to the Collector is however many docs you are > > going to be interested in. If you are just going to display the first > > 10, pass 10. > > > > > > -- > > Ian. > > > > > > On Thu, Nov 19, 2009 at 3:36 PM, it99 <deswiatlow...@syrres.com> wrote: > >> > >> What is the best way to iterate across all the documents in a search > >> results? > >> Previously I was using the deprecated Hits object but changed the > >> implentations as recommended in javadocs to ScoreDoc. > >> > >> I've tried the following but I've seen warning about peformance. > >> Seems the first time I query something it takes long time and then after > >> that it is quick. > >> > >> > >> > >> for (int i = 0; i < mNumberOfHits; i++) > >> { > >> > >> int docId = hits[i].doc; > >> Document doc = searcher.doc(docId); > >> } > >> > >> Here's the code for the search > >> What is good number to pass intot TopDocCollector? > >> > >> TopDocCollector collector = new TopDocCollector(1000000); > >> searcher.search(query, collector); > >> ScoreDoc[] hits = collector.topDocs().scoreDocs; > >> -- > >> View this message in context: > >> > http://old.nabble.com/best-way-to-iterate-through-all-docs-from-a-query-tp26421373p26421373.html > >> Sent from the Lucene - Java Users mailing list archive at Nabble.com. > >> > >> > >> --------------------------------------------------------------------- > >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > >> For additional commands, e-mail: java-user-h...@lucene.apache.org > >> > >> > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > > For additional commands, e-mail: java-user-h...@lucene.apache.org > > > > > > > > -- > View this message in context: > http://old.nabble.com/best-way-to-iterate-through-all-docs-from-a-query-tp26421373p26442733.html > Sent from the Lucene - Java Users mailing list archive at Nabble.com. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > >
