Dominique Béjean created SOLR-11968:
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Summary: Multi-words query time synonyms
Key: SOLR-11968
URL: https://issues.apache.org/jira/browse/SOLR-11968
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Components: query parsers, Schema and Analysis
Affects Versions: 6.6.2, master (8.0)
Reporter: Dominique Béjean
I am trying multi words query time synonyms with Solr 6.6.2and
SynonymGraphFilterFactory filter as explain in this article
[https://lucidworks.com/2017/04/18/multi-word-synonyms-solr-adds-query-time-support/]
My field type is :
<fieldType name="textSyn" class="solr.TextField" positionIncrementGap="100">
<analyzer type="index">
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.ElisionFilterFactory" ignoreCase="true"
articles="lang/contractions_fr.txt"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.ASCIIFoldingFilterFactory"/>
<filter class="solr.StopFilterFactory" words="stopwords.txt"
ignoreCase="true"/>
<filter class="solr.FrenchMinimalStemFilterFactory"/>
</analyzer>
<analyzer type="query">
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.ElisionFilterFactory" ignoreCase="true"
articles="lang/contractions_fr.txt"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.SynonymGraphFilterFactory" synonyms="synonyms.txt"
ignoreCase="true" expand="true"/>
<filter class="solr.ASCIIFoldingFilterFactory"/>
<filter class="solr.StopFilterFactory" words="stopwords.txt"
ignoreCase="true"/>
<filter class="solr.FrenchMinimalStemFilterFactory"/>
</analyzer>
</fieldType>
synonyms.txt contains the line :
om, olympique de marseille
stopwords.txt contains the word "de"
The order of words in my query has an impact on the generated query in edismax
q=\{!edismax qf='name_text_gp' v=$qq}
&sow=false
&qq=...
with "qq=om maillot" or "qq=olympique de marseille maillot", I can see the
synonyms expansion. It is working as expected.
"parsedquery_toString":"+(((+name_text_gp:olympiqu +name_text_gp:marseil
+name_text_gp:maillot) name_text_gp:om))",
"parsedquery_toString":"+((name_text_gp:om (+name_text_gp:olympiqu
+name_text_gp:marseil +name_text_gp:maillot)))",
with "qq=maillot om" or "qq=maillot olympique de marseille", I can see the same
generated query
"parsedquery_toString":"+((name_text_gp:maillot) (name_text_gp:om))",
"parsedquery_toString":"+((name_text_gp:maillot) (name_text_gp:om))",
I don't understand these generated queries. The first one looks like the
synonym expansion is ignored, but the second one shows it is not ignored and
only the synonym term is used.
When I test the analisys for the field type the synonyms are correctly expanded
for both expressions
om maillot
maillot om
olympique de marseille maillot
maillot olympique de marseille
resulting outputs always include the following terms (obvioulsly not always in
the same order)
olympiqu om marseil maillot
So, i suspect an issue with edismax query parser.
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