Sambhav Kothari created SOLR-12409:
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Summary: Different behaviour of pf with dismax and edismax
Key: SOLR-12409
URL: https://issues.apache.org/jira/browse/SOLR-12409
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Components: query parsers
Affects Versions: 7.3.1
Environment: Ubuntu 17.10
Reporter: Sambhav Kothari
Hello,
I experienced a weird behaviour with dismax and edismax query parsers.
Dismax will include pf boosts when we query something that has just a single
word, edismax on the other hand will not include pf boosts.
The result is that a dismax and an edismax handler with the same set of
defaults, return different results for single word queries (eg. "Hello") but
the same results for multi word queries (eg. "Hello Wold")
Is this expected?
Regards,
Sam
Attaching debug query logs for both below.
{code:java}
// Single word query against dismax QH
{
"rawquerystring":"pink",
"querystring":"pink",
"parsedquery":"+DisjunctionMaxQuery((area:pink | country:pink | ipi:pink |
(artist:pink)^2.0 | beginarea:pink | type:pink | (sortname:pink)^2.0 |
isni:pink | alias:pink | comment:pink | ngram:pink | tag:pink))
DisjunctionMaxQuery(((sortname:pink)^1.2 | (alias:pink)^1.2 |
(comment:pink)^1.2 | (artist:pink)^1.5))
FunctionQuery(log(sum(int(ref_count),const(1))))^3.0",
"parsedquery_toString":"+(area:pink | country:pink | ipi:pink |
(artist:pink)^2.0 | beginarea:pink | type:pink | (sortname:pink)^2.0 |
isni:pink | alias:pink | comment:pink | ngram:pink | tag:pink)
((sortname:pink)^1.2 | (alias:pink)^1.2 | (comment:pink)^1.2 |
(artist:pink)^1.5) (log(sum(int(ref_count),const(1))))^3.0"
}
// Single word query against edismax QH
{
"rawquerystring":"pink ",
"querystring":"pink ",
"parsedquery":"+DisjunctionMaxQuery((area:pink | country:pink | ipi:pink |
(artist:pink)^2.0 | beginarea:pink | type:pink | (sortname:pink)^2.0 |
isni:pink | alias:pink | comment:pink | ngram:pink | tag:pink)) ()
FunctionQuery(log(sum(int(ref_count),const(1))))^3.0",
"parsedquery_toString":"+(area:pink | country:pink | ipi:pink |
(artist:pink)^2.0 | beginarea:pink | type:pink | (sortname:pink)^2.0 |
isni:pink | alias:pink | comment:pink | ngram:pink | tag:pink) ()
(log(sum(int(ref_count),const(1))))^3.0"
}
// Multi word query against dismax QH
{
"rawquerystring":"pink floyd",
"querystring":"pink floyd",
"parsedquery":"+(DisjunctionMaxQuery((area:pink | country:pink | ipi:pink |
(artist:pink)^2.0 | beginarea:pink | type:pink | (sortname:pink)^2.0 |
isni:pink | alias:pink | comment:pink | ngram:pink | tag:pink))
DisjunctionMaxQuery((area:floyd | country:floyd | ipi:floyd |
(artist:floyd)^2.0 | beginarea:floyd | type:floyd | (sortname:floyd)^2.0 |
isni:floyd | alias:floyd | comment:floyd | ngram:floyd | tag:floyd)))~2
DisjunctionMaxQuery(((sortname:\"pink floyd\")^1.2 | (alias:\"pink floyd\")^1.2
| (comment:\"pink floyd\")^1.2 | (artist:\"pink floyd\")^1.5))
FunctionQuery(log(sum(int(ref_count),const(1))))^3.0",
"parsedquery_toString":"+(((area:pink | country:pink | ipi:pink |
(artist:pink)^2.0 | beginarea:pink | type:pink | (sortname:pink)^2.0 |
isni:pink | alias:pink | comment:pink | ngram:pink | tag:pink) (area:floyd |
country:floyd | ipi:floyd | (artist:floyd)^2.0 | beginarea:floyd | type:floyd |
(sortname:floyd)^2.0 | isni:floyd | alias:floyd | comment:floyd | ngram:floyd |
tag:floyd))~2) ((sortname:\"pink floyd\")^1.2 | (alias:\"pink floyd\")^1.2 |
(comment:\"pink floyd\")^1.2 | (artist:\"pink floyd\")^1.5)
(log(sum(int(ref_count),const(1))))^3.0"
}
// Multi word query against edismax QH
{
"rawquerystring":"pink floyd",
"querystring":"pink floyd",
"parsedquery":"+DisjunctionMaxQuery((((area:pink area:floyd)~2) | country:pink
floyd | ipi:pinkfloyd | () | ((artist:pink artist:floyd)~2)^2.0 |
((beginarea:pink beginarea:floyd)~2) | type:pink floyd | ((sortname:pink
sortname:floyd)~2)^2.0 | isni:pinkfloyd | ((alias:pink alias:floyd)~2) |
((comment:pink comment:floyd)~2) | ((ngram:pink ngram:floyd)~2) | ((tag:pink
tag:floyd)~2))) DisjunctionMaxQuery(((artist:\"pink floyd\")^1.5 |
(alias:\"pink floyd\")^1.2 | (sortname:\"pink floyd\")^1.2 | (comment:\"pink
floyd\")^1.2)) FunctionQuery(log(sum(int(ref_count),const(1))))^3.0",
"parsedquery_toString":"+(((area:pink area:floyd)~2) | country:pink floyd |
ipi:pinkfloyd | () | ((artist:pink artist:floyd)~2)^2.0 | ((beginarea:pink
beginarea:floyd)~2) | type:pink floyd | ((sortname:pink sortname:floyd)~2)^2.0
| isni:pinkfloyd | ((alias:pink alias:floyd)~2) | ((comment:pink
comment:floyd)~2) | ((ngram:pink ngram:floyd)~2) | ((tag:pink tag:floyd)~2))
((artist:\"pink floyd\")^1.5 | (alias:\"pink floyd\")^1.2 | (sortname:\"pink
floyd\")^1.2 | (comment:\"pink floyd\")^1.2)
(log(sum(int(ref_count),const(1))))^3.0"
}
{code}
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