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From Pavel Goncharik <pavel.goncha...@gmail.com>
Subject Re: Query-side Join work in distributed Solr?
Date Mon, 03 Sep 2012 20:44:23 GMT
That's correct, but according to the comments to the issue SOLR-2066,
"counts returned when using field collapse are only accurate when the
documents getting collapsed together are all on the same shard" (it's
actually a quote from SOLR-2592). Which sounds like SOLR-2592 will
make distributed field collapsing complete.

It's a pity there are no plans to make the same thing for joins: since
SolrCloud by definition a distributed system, being able to "join"
only on a single shard makes this feature much less attractive...

On Fri, Aug 24, 2012 at 9:33 PM, Erick Erickson <erickerickson@gmail.com> wrote:
> Not as I understand it. All that allows is a pluggable assignment of
> documents to shards in SolrCloud. There's nothing tying that JIRA to
> distributed joins or field collapsing.
>
> Distributed grouping is already in place as of Solr 3.5, see:
> https://issues.apache.org/jira/browse/SOLR-2066
>
> Best
> Erick
>
> On Fri, Aug 24, 2012 at 2:49 PM, Pavel Goncharik
> <pavel.goncharik@gmail.com> wrote:
>> Do I understand correctly that once
>> https://issues.apache.org/jira/browse/SOLR-2592 is resolved, it will
>> make both distributed joins and field collapsing work?
>>
>> Best regards, Pavel
>>
>> On Fri, Aug 24, 2012 at 6:01 PM, Erick Erickson <erickerickson@gmail.com> wrote:
>>> Right, there hasn't been any action on that patch in a while...
>>>
>>> Best
>>> Erick
>>>
>>> On Wed, Aug 22, 2012 at 12:18 PM, Timothy Potter <thelabdude@gmail.com>
wrote:
>>>> Just to clarify that query-side joins ( e.g. {!join from=id
>>>> to=parent_signal_id_s}id:foo ) do not work in a distributed mode yet?
>>>> I saw LUCENE-3759 as unresolved but also some some Twitter traffic
>>>> saying there was a patch available.
>>>>
>>>> Cheers,
>>>> Tim

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