Быстрый вопрос, я не знаю, как обращаться с синонимами, которые содержат пробел! У меня есть следующий конфиг:

Конфигурационный файл SOLR

<fieldType ... >
  <analyzer type="index">
    <charFilter class="solr.MappingCharFilterFactory" mapping="mapping-ISOLatin1Accent.txt"/>
    <tokenizer class="solr.WhitespaceTokenizerFactory"/>
            <filter class="solr.WordDelimiterFilterFactory" 
                            catenateWords="1" 
                            preserveOriginal="1"
                            splitOnCaseChange="1"
                            generateWordParts="1" 
                            generateNumberParts="1"         
                            catenateNumbers="1" 
                            catenateAll="1" 
                            />
    <filter class="solr.LowerCaseFilterFactory"/>
    <filter class="solr.EdgeNGramFilterFactory" minGramSize="2" maxGramSize="30" side="front"/>
  </analyzer>
  <analyzer type="query">    
    <charFilter class="solr.MappingCharFilterFactory" mapping="mapping-ISOLatin1Accent.txt"/>
    <tokenizer class="solr.WhitespaceTokenizerFactory"/>
    <filter class="solr.LengthFilterFactory" min="2" max="70" />
    <filter class="solr.SynonymFilterFactory" synonyms="syn.txt" ignoreCase="true" expand="true"/>
    <filter class="solr.LowerCaseFilterFactory"/>
 </analyzer>
</fieldType>

Мой файл: syn.txt

st., st => saint
istambul => istanbul
airport, apt => aéroport
NYC => New York
pt., pt => port
brussels => bruxelles

Все работало нормально, кроме синонима:

"NYC => New York"

Я провел небольшое исследование и обнаружил следующее:

Keep in mind that while the SynonymFilter will happily work with synonyms containing multiple words (ie: "sea biscuit, sea biscit, seabiscuit")

The recommended approach for dealing with synonyms like this, is to expand the synonym when indexing. This is because there are two potential issues that can arrise at query time:

The Lucene QueryParser tokenizes on white space before giving any text to the Analyzer, so if a person searches for the words sea biscit the analyzer will be given the words "sea" and "biscit" separately, and will not know that they match a synonym.

Phrase searching (ie: "sea biscit") will cause the QueryParser to pass the entire string to the analyzer, but if the SynonymFilter is configured to expand the synonyms, then when the QueryParser gets the resulting list of tokens back from the Analyzer, it will construct a MultiPhraseQuery that will not have the desired effect.

This is because of the limited mechanism available for the Analyzer to indicate that two terms occupy the same position: there is no way to indicate that a "phrase" occupies the same position as a term.

For our example the resulting MultiPhraseQuery would be "(sea | sea | seabiscuit) (biscuit | biscit)" which would not match the simple case of "seabiscuit" occuring in a document

Поэтому я попытался изменить свой конфигурационный файл и добавить свои фильтры при индексации, но он не работает.

У чего-то были идеи?