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Date: Tue, 13 Oct 2009 06:47:31 -0700 (PDT)
From: "Aytek Ekici (JIRA)" <jira@apache.org>
To: solr-dev@lucene.apache.org
Subject: [jira] Issue Comment Edited: (SOLR-236) Field collapsing
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    [ https://issues.apache.org/jira/browse/SOLR-236?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12765076#action_12765076 ] 

Aytek Ekici edited comment on SOLR-236 at 10/13/09 6:46 AM:
------------------------------------------------------------

Hi all,
Just applied "field-collapse-5.patch" and i guess there are problems with filter queries.

Here it is:

1- http://10.231.14.252:8080/myindex/select?q=*:*&fq=lat:[37.2 TO 39.8]
numFound: 6284

2- http://10.231.14.252:8080/myindex/select?q=*:*&fq=lng:[24.5 TO 29.9]
numFound: 16912

3- http://10.231.14.252:8080/myindex/select?q=*:*&fq=lat:[37.2 TO 39.8]&fq=lng:[24.5 TO 29.9]
numFound: 19419

4- When using "q" instead of "fq" which is http://10.231.14.252:8080/myindex/select?q=lat:[37.2 TO 39.8] AND lng:[24.5 TO 29.9]
numFound: 3777 (which is the only correct number)

The thing is, as i understand, instead of applying "AND" for each filter query it applies "OR". Checked http://10.231.14.252:8080/myindex/select?q=lat:[37.2 TO 39.8] OR lng:[24.5 TO 29.9]
numFound: 19419 (same as 3rd one)

Any idea how to fix this?
Thx.

      was (Author: aytek):
    Hi all,
Just applied "field-collapse-5.patch" and i guess there are problems with filter queries.

Here it is:

1- Use one(first) filter

http://10.231.14.252:8080/myindex/select?q=*:*&fq=lat:[37.2 TO 39.8]
numFound: 6284

2- Use second filter
http://10.231.14.252:8080/myindex/select?q=*:*&fq=lng:[24.5 TO 29.9]
numFound: 16912

3- Use both filters
http://10.231.14.252:8080/myindex/select?q=*:*&fq=lat:[37.2 TO 39.8]&fq=lng:[24.5 TO 29.9]
numFound: 19419

4- When using "q" instead of "fq" which is : http://10.231.14.252:8080/myindex/select?q=lat:[37.2 TO 39.8] AND lng:[24.5 TO 29.9]
numFound: 3777 (which is the only correct number)

The thing is, as i understand, instead of applying "AND" for each filter query it applies "OR". Checked http://10.231.14.252:8080/myindex/select?q=lat:[37.2 TO 39.8] OR lng:[24.5 TO 29.9]
numFound: 19419 (same as 3rd one)

Any idea how to fix this?
Thx.
  
> Field collapsing
> ----------------
>
>                 Key: SOLR-236
>                 URL: https://issues.apache.org/jira/browse/SOLR-236
>             Project: Solr
>          Issue Type: New Feature
>          Components: search
>    Affects Versions: 1.3
>            Reporter: Emmanuel Keller
>             Fix For: 1.5
>
>         Attachments: collapsing-patch-to-1.3.0-dieter.patch, collapsing-patch-to-1.3.0-ivan.patch, collapsing-patch-to-1.3.0-ivan_2.patch, collapsing-patch-to-1.3.0-ivan_3.patch, field-collapse-3.patch, field-collapse-4-with-solrj.patch, field-collapse-5.patch, field-collapse-5.patch, field-collapse-5.patch, field-collapse-5.patch, field-collapse-5.patch, field-collapse-5.patch, field-collapse-solr-236-2.patch, field-collapse-solr-236.patch, field-collapsing-extended-592129.patch, field_collapsing_1.1.0.patch, field_collapsing_1.3.patch, field_collapsing_dsteigerwald.diff, field_collapsing_dsteigerwald.diff, field_collapsing_dsteigerwald.diff, SOLR-236-FieldCollapsing.patch, SOLR-236-FieldCollapsing.patch, SOLR-236-FieldCollapsing.patch, solr-236.patch, SOLR-236_collapsing.patch, SOLR-236_collapsing.patch
>
>
> This patch include a new feature called "Field collapsing".
> "Used in order to collapse a group of results with similar value for a given field to a single entry in the result set. Site collapsing is a special case of this, where all results for a given web site is collapsed into one or two entries in the result set, typically with an associated "more documents from this site" link. See also Duplicate detection."
> http://www.fastsearch.com/glossary.aspx?m=48&amid=299
> The implementation add 3 new query parameters (SolrParams):
> "collapse.field" to choose the field used to group results
> "collapse.type" normal (default value) or adjacent
> "collapse.max" to select how many continuous results are allowed before collapsing
> TODO (in progress):
> - More documentation (on source code)
> - Test cases
> Two patches:
> - "field_collapsing.patch" for current development version
> - "field_collapsing_1.1.0.patch" for Solr-1.1.0
> P.S.: Feedback and misspelling correction are welcome ;-)

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