On 20 Nov 2009, at 23:44, Bryan Grunow wrote: > When running a local query against a FIFODataContainer I get the > results back in FIFO order. Is this guaranteed? No this is not. For example your query may have additional ordering rules. If you see stuff in FIFO, this is purely coincidental. > If not do you think it’s possible for 4.1 when queries are > officially supported? Lucene maintains the indexes and performs searching - so we would need to look at Lucene and see if it supports a default FIFO, etc ordering. Navin/Emmanuel/Sanne - would either of you know off the top of your head?

Cheers Manik -- Manik Surtani manik(a)jboss.org Lead, Infinispan Lead, JBoss Cache http://www.infinispan.org http://www.jbosscache.org _______________________________________________ infinispan-dev mailing list infinispan-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/infinispan-dev

From: Emmanuel Bernard <emmanuel(a)hibernate.org&gt; To: infinispan -Dev List <infinispan-dev(a)lists.jboss.org&gt; Sent: Tue, November 24, 2009 12:13:40 AM Subject: Re: [infinispan-dev] Query order question No it's not guaranteed by Lucene. It's actually guaranteed not to as Lucene order by relevance OOTB and even if it did not, Lucene reorder entries when compacting the index. So order is not guaranteed just like a regular relational database. You could store a globally unique incremented number with all your objects and sort by this field, though, if you really need this feature. On 23 nov. 09, at 22:39, Navin Surtani wrote: > >On 23 Nov 2009, at 21:08, Manik Surtani wrote: > > >> >>On 20 Nov 2009, at 23:44, Bryan Grunow wrote: >> >>When running a local query against a FIFODataContainer I get the results back in FIFO order.  Is this guaranteed? >> >> >>No this is not.  For example your query may have additional ordering rules.  If you see stuff in FIFO, this is purely coincidental. >> >> If not do you think it’s possible for 4.1 when queries are officially supported? >> >> >>Lucene maintains the indexes and performs searching - so we would need to look at Lucene and see if it supports a default FIFO, etc ordering.  Navin/Emmanuel/Sanne - would either of you know off the top of your head? > > >I unfortunately don't know this off the top of my head. I'm guessing Emmanuel and/or Sanne would have a better idea. > > >> >>Cheers >>Manik >> >> >>-- >>Manik Surtani &gt;&gt;manik(a)jboss.org >>Lead, Infinispan >>Lead, JBoss Cache >>http://www.infinispan.org/ >>http://www.jbosscache.org/ >> >> >> >> >>_______________________________________________ >>infinispan-dev mailing list &gt;&gt;infinispan-dev(a)lists.jboss.org >>https://lists.jboss.org/mailman/listinfo/infinispan-dev > >Navin Surtani > > >Intern Infinispan >Intern JBoss Cache Searchable >_______________________________________________ >infinispan-dev mailing list &gt;infinispan-dev(a)lists.jboss.org >https://lists.jboss.org/mailman/listinfo/infinispan-dev