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Posted to dev@lucene.apache.org by "Hoss Man (Resolved) (JIRA)" <ji...@apache.org> on 2012/03/22 20:42:22 UTC
[jira] [Resolved] (SOLR-3127) Dismax to honor the
KeywordTokenizerFactory when querying with multi word strings
[ https://issues.apache.org/jira/browse/SOLR-3127?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hoss Man resolved SOLR-3127.
----------------------------
Resolution: Not A Problem
resolving since the issue here just seems to be a missunderstanding of how dismax works.
if you have questions about this, please start a thread on solr-user. if you have specific suggestions for how to change dismax to work better in situations like yours (w/o breaking existing usecases obviously) or suggestions on improving the documentation then by all means: please open a new issue with your suggestions
> Dismax to honor the KeywordTokenizerFactory when querying with multi word strings
> ---------------------------------------------------------------------------------
>
> Key: SOLR-3127
> URL: https://issues.apache.org/jira/browse/SOLR-3127
> Project: Solr
> Issue Type: Improvement
> Components: query parsers
> Affects Versions: 3.5
> Reporter: Zac Smith
> Priority: Minor
> Labels: dismax
>
> When using the KeywordTokenizerFactory with a multi word search string, the dismax query created is not very useful. Although the query analzyer doesn't tokenize the search input, each word of the input is include in the search.
> e.g. if searching for 'chicken stock' the dismax query created would be:
> +(DisjunctionMaxQuery((ingredient_synonyms:chicken^0.6)~0.01) DisjunctionMaxQuery((ingredient_synonyms:stock^0.6)~0.01)) DisjunctionMaxQuery((ingredient_synonyms:chicken stock^0.6)~0.01)
> Note that although the query analyzer does not tokenize the term 'chicken stock' into 'chicken' and 'stock', they are still included and required in the search term.
> I think the query created should be just:
> DisjunctionMaxQuery((ingredient_synonyms:chicken stock)~0.01)
> (or at least not have the individual terms as should match, not must match so you could configure with MM.
> Example field type:
> <fieldType name="keyword_test" class="solr.TextField" positionIncrementGap="100" autoGeneratePhraseQueries="false">
> <analyzer type="index">
> <tokenizer class="solr.KeywordTokenizerFactory" />
> </analyzer>
> <analyzer type="query">
> <tokenizer class="solr.KeywordTokenizerFactory" />
> </analyzer>
> </fieldType>
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