使用 Solr 1.4 进行通配符搜索和突出显示 [英] Wildcard searching and highlighting with Solr 1.4
问题描述
除了一些小的配置和架构更改之外,我已经安装了 SOLR 1.4 的基本版本.
I've got a pretty much vanilla install of SOLR 1.4 apart from a few small config and schema changes.
<requestHandler name="standard" class="solr.SearchHandler" default="true">
<!-- default values for query parameters -->
<lst name="defaults">
<str name="defType">dismax</str>
<str name="echoParams">explicit</str>
<str name="qf">
text
</str>
<str name="spellcheck.dictionary">default</str>
<str name="spellcheck.onlyMorePopular">false</str>
<str name="spellcheck.extendedResults">false</str>
<str name="spellcheck.count">1</str>
</lst>
</requestHandler>
我用于索引的主要字段类型是:
The main field type I'm using for Indexing is this:
<fieldType name="textNoHTML" class="solr.TextField" positionIncrementGap="100">
<analyzer type="index">
<charFilter class="solr.HTMLStripCharFilterFactory" />
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
<filter class="solr.StopFilterFactory"
ignoreCase="true"
words="stopwords.txt"
enablePositionIncrements="true"
/>
<filter class="solr.WordDelimiterFilterFactory" generateWordParts="1" generateNumberParts="1" catenateWords="1" catenateNumbers="1" catenateAll="0" splitOnCaseChange="1"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.SnowballPorterFilterFactory" language="English" protected="protwords.txt"/>
</analyzer>
<analyzer type="query">
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
<filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt" ignoreCase="true" expand="true"/>
<filter class="solr.StopFilterFactory"
ignoreCase="true"
words="stopwords.txt"
enablePositionIncrements="true"
/>
<filter class="solr.WordDelimiterFilterFactory" generateWordParts="1" generateNumberParts="1" catenateWords="0" catenateNumbers="0" catenateAll="0" splitOnCaseChange="1"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.SnowballPorterFilterFactory" language="English" protected="protwords.txt"/>
</analyzer>
</fieldType>
现在,当我使用
"q=search+term&hl=on"
我得到了突出显示,并且得到了准确的分数.
I get highlighting, and nice accurate scores.
但是,对于通配符,我假设您需要使用q.alt"?真的吗?如果是这样,我的查询如下所示:
BUT, for wildcard, I'm assuming you need to use "q.alt"? Is that true? If so my query looks like this:
"q.alt=search*&hl=on"
当我使用上面的查询时,突出显示不起作用,所有的分数都是1.0".
When I use the above query, highlighting doesn't work, and all the scores are "1.0".
我做错了什么?在不绕过一些非常酷的 SOLR 优化的情况下,这是我想要的.
What am I doing wrong? is what I want possible without bypassing some of the really cool SOLR optimizations.
干杯!
推荐答案
据我所知,您不能在 dismax 处理程序中使用通配符,请参阅 http://wiki.apache.org/solr/DisMaxRequestHandler#q.
From what I know you can't use wildcards with the dismax handler, see http://wiki.apache.org/solr/DisMaxRequestHandler#q.
为了模拟通配符搜索,我按照此处的一些说明使用了 EdgeNGrams:http://www.lucidimagination.com/blog/2009/09/08/auto-suggest-from-popular-queries-using-edgengrams/.其实我真的只是在schema.xml中添加了edgytext fieldtype,并更改了我要搜索的字段的fieldtype.
To simulate wildcard searching I used EdgeNGrams following some of the instructions here: http://www.lucidimagination.com/blog/2009/09/08/auto-suggest-from-popular-queries-using-edgengrams/. Actually I really only added the edgytext fieldtype to schema.xml and changed the fieldtype of the field I wanted to search.
希望这有帮助!
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