Count is inconsistent between facet and stats

[Yandong Yao <yy...@gmail.com>]

Hi Guys,

Steps to reproduce:

1) Download apache-solr-4.0.0-ALPHA
2) cd example;  java -jar start.jar
3) cd exampledocs;  ./post.sh *.xml
4) Use statsComponent to get the stats info for field 'popularity' based on
facet 'cat'.  And the 'count' for 'electronics' is 3
http://localhost:8983/solr/collection1/select?q=cat:electronics&wt=json&rows=0&stats=true&stats.field=popularity&stats.facet=cat

{

   - stats_fields:
   {
      - popularity:
      {
         - min: 0,
         - max: 10,
         - count: 14,
         - missing: 0,
         - sum: 75,
         - sumOfSquares: 503,
         - mean: 5.357142857142857,
         - stddev: 2.7902892835178013,
         - facets:
         {
            - cat:
            {
               - music:
               {
                  - min: 10,
                  - max: 10,
                  - count: 1,
                  - missing: 0,
                  - sum: 10,
                  - sumOfSquares: 100,
                  - mean: 10,
                  - stddev: 0
                  },
               - monitor:
               {
                  - min: 6,
                  - max: 6,
                  - count: 2,
                  - missing: 0,
                  - sum: 12,
                  - sumOfSquares: 72,
                  - mean: 6,
                  - stddev: 0
                  },
               - hard drive:
               {
                  - min: 6,
                  - max: 6,
                  - count: 2,
                  - missing: 0,
                  - sum: 12,
                  - sumOfSquares: 72,
                  - mean: 6,
                  - stddev: 0
                  },
               - scanner:
               {
                  - min: 6,
                  - max: 6,
                  - count: 1,
                  - missing: 0,
                  - sum: 6,
                  - sumOfSquares: 36,
                  - mean: 6,
                  - stddev: 0
                  },
               - memory:
               {
                  - min: 0,
                  - max: 7,
                  - count: 3,
                  - missing: 0,
                  - sum: 12,
                  - sumOfSquares: 74,
                  - mean: 4,
                  - stddev: 3.605551275463989
                  },
               - graphics card:
               {
                  - min: 7,
                  - max: 7,
                  - count: 2,
                  - missing: 0,
                  - sum: 14,
                  - sumOfSquares: 98,
                  - mean: 7,
                  - stddev: 0
                  },
               - electronics:
               {
                  - min: 1,
                  - max: 7,
                  - count: 3,
                  - missing: 0,
                  - sum: 9,
                  - sumOfSquares: 51,
                  - mean: 3,
                  - stddev: 3.4641016151377544
                  }
               }
            }
         }
      }

}
5)  Facet on 'cat' and the count is 14.
http://localhost:8983/solr/collection1/select?q=cat:electronics&wt=json&rows=0&facet=true&facet.field=cat

{

   - cat:
   [
      - "electronics",
      - 14,
      - "memory",
      - 3,
      - "connector",
      - 2,
      - "graphics card",
      - 2,
      - "hard drive",
      - 2,
      - "monitor",
      - 2,
      - "camera",
      - 1,
      - "copier",
      - 1,
      - "multifunction printer",
      - 1,
      - "music",
      - 1,
      - "printer",
      - 1,
      - "scanner",
      - 1,
      - "currency",
      - 0,
      - "search",
      - 0,
      - "software",
      - 0
      ]

},



So from StatsComponent the count for 'electronics' cat is 3, while
FacetComponent report 14 'electronics'. Is this a bug?

Following is the field definition for 'cat'.
<field name="cat" type="string" indexed="true" stored="true"
multiValued="true"/>

Thanks,
Yandong

Re: Count is inconsistent between facet and stats

[Chris Hostetter <ho...@fucit.org>]

: So from StatsComponent the count for 'electronics' cat is 3, while
: FacetComponent report 14 'electronics'. Is this a bug?
: 
: Following is the field definition for 'cat'.
: <field name="cat" type="string" indexed="true" stored="true"
: multiValued="true"/>

FYI...

https://issues.apache.org/jira/browse/SOLR-3642

(The underlying problem is that the stats.facet feature doesn't work for 
multivalued fields, and the check that was suppose to return an error in 
this case was only checking the fieldtype not the field)


-Hoss