[SOLR-3642] Count is inconsistent between facet and stats

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.0-ALPHA
• Fix Version/s: 4.0-BETA, 6.0
• Component/s: SearchComponents - other

Environment

4.0 alpha on macos 10.6

• Assignee: Chris M. Hostetter
• Reporter: Yandong Yao
• Created: 19/Jul/12 00:03
• Updated: 09/May/16 18:43
• Resolved: 19/Jul/12 21:30

Description

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"/>

Issue Links

• duplicates: SOLR-1782 stats.facet assumes FieldCache.StringIndex - fails horribly on multivalued fields