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Posted to solr-user@lucene.apache.org by Lukas Kahwe Smith <ml...@pooteeweet.org> on 2010/11/08 02:13:42 UTC
facetting when using field collapsing
Hi,
I am pondering making use of field collapsing. I am currently indexing clauses (sections) inside UN documents:
http://resolutionfinder.org/search/unifiedResults?q=africa&=&t[22]=medication&dc=&st=clause
Now since right now my data set is still fairly small I am doing field collapsing in userland:
http://resolutionfinder.org/search/unifiedResults?q=africa&=&t[22]=medication&dc=&st=document
However while this works alright (not ideal, since I am fetching essentially the entire result set and not paged as for clauses) etc, I still have no idea how to get the facet filters to display the right counts. So I am wondering if field collapsing in its current form supports faceting, since its not mentioned on the wiki page:
http://wiki.apache.org/solr/FieldCollapsing
regards,
Lukas Kahwe Smith
mls@pooteeweet.org
Re: facetting when using field collapsing
Posted by Yonik Seeley <yo...@lucidimagination.com>.
On Sat, Nov 13, 2010 at 10:46 AM, Lukas Kahwe Smith <ml...@pooteeweet.org> wrote:
>
> On 13.11.2010, at 10:30, Yonik Seeley wrote:
>
>> On Wed, Nov 10, 2010 at 9:12 AM, Lukas Kahwe Smith <ml...@pooteeweet.org> wrote:
>>> The above wiki page seems to be out of date. Reading the comments in https://issues.apache.org/jira/browse/SOLR-236 it seems like "group" should be replaced with "collapse".
>>
>> The Wiki page is not expansive, but I've tried to make it easy for
>> people to get started, and make everything there correct. If you can
>> point out what is incorrect, we can fix!
>>
>> With regards to faceting, it works, but is unaffected by grouping
>> (i.e. facet counts will be the same as a non-grouped response).
>
>
> The wiki page uses "group", but in the ticket all examples always speak of "collapse". Which syntax is correct?
It's "group" - try out the examples on the wiki page.
JIRA tickets are for development, not documentation.
> Other than that the ticket also speaks of a few parameters not mentioned, specifically if facetting should happen before or after group/collapse:
> collapse.facet=before|after
This currently doesn't exist in the committed code, hence the param is
not documented.
Grouping/collapsing currently has no effect on faceting (i.e. set
group=false and you will get a non grouped result with the exact same
facet counts).
-Yonik
http://www.lucidimagination.com
Re: facetting when using field collapsing
Posted by Lukas Kahwe Smith <ml...@pooteeweet.org>.
On 13.11.2010, at 10:30, Yonik Seeley wrote:
> On Wed, Nov 10, 2010 at 9:12 AM, Lukas Kahwe Smith <ml...@pooteeweet.org> wrote:
>> The above wiki page seems to be out of date. Reading the comments in https://issues.apache.org/jira/browse/SOLR-236 it seems like "group" should be replaced with "collapse".
>
> The Wiki page is not expansive, but I've tried to make it easy for
> people to get started, and make everything there correct. If you can
> point out what is incorrect, we can fix!
>
> With regards to faceting, it works, but is unaffected by grouping
> (i.e. facet counts will be the same as a non-grouped response).
The wiki page uses "group", but in the ticket all examples always speak of "collapse". Which syntax is correct?
Other than that the ticket also speaks of a few parameters not mentioned, specifically if facetting should happen before or after group/collapse:
collapse.facet=before|after
A few others that I found scavenging the comments, note some/many may not be relevant anymore or were just ideas someone proposed:
collapse.includeCollapsedDocs.fl
collapse.includeCollapsedDocs.count
collapse.type
collapse.threshold
collapse.maxdocs
collapse.max
collapse.includeAllDoc
collapse.enable
collapse.collectDiscardedDocuments.fl
collapse.discarded.fl
collapse.discarded.limit
collapse.aggregate
regards,
Lukas Kahwe Smith
mls@pooteeweet.org
Re: facetting when using field collapsing
Posted by Yonik Seeley <yo...@lucidimagination.com>.
On Wed, Nov 10, 2010 at 9:12 AM, Lukas Kahwe Smith <ml...@pooteeweet.org> wrote:
> The above wiki page seems to be out of date. Reading the comments in https://issues.apache.org/jira/browse/SOLR-236 it seems like "group" should be replaced with "collapse".
The Wiki page is not expansive, but I've tried to make it easy for
people to get started, and make everything there correct. If you can
point out what is incorrect, we can fix!
With regards to faceting, it works, but is unaffected by grouping
(i.e. facet counts will be the same as a non-grouped response).
-Yonik
http://www.lucidimagination.com
Re: facetting when using field collapsing
Posted by Lukas Kahwe Smith <ml...@pooteeweet.org>.
On 07.11.2010, at 20:13, Lukas Kahwe Smith wrote:
> Hi,
>
> I am pondering making use of field collapsing. I am currently indexing clauses (sections) inside UN documents:
> http://resolutionfinder.org/search/unifiedResults?q=africa&=&t[22]=medication&dc=&st=clause
>
> Now since right now my data set is still fairly small I am doing field collapsing in userland:
> http://resolutionfinder.org/search/unifiedResults?q=africa&=&t[22]=medication&dc=&st=document
>
> However while this works alright (not ideal, since I am fetching essentially the entire result set and not paged as for clauses) etc, I still have no idea how to get the facet filters to display the right counts. So I am wondering if field collapsing in its current form supports faceting, since its not mentioned on the wiki page:
> http://wiki.apache.org/solr/FieldCollapsing
The above wiki page seems to be out of date. Reading the comments in https://issues.apache.org/jira/browse/SOLR-236 it seems like "group" should be replaced with "collapse".
regards,
Lukas Kahwe Smith
mls@pooteeweet.org