RE: [External] Re: wildcards match end-of-word?

["Fischer, Stephen" <sf...@pennmedicine.upenn.edu>]

Thanks *very much* for replying.  (You're right, I missed the "zero or more," having focused only on the examples in the doc.  Oops).

New discovery.  kin*ase returns 0 hits.   Below I show the debug output and the pertinent parts of the schema.   Maybe you can spot my problem?

{
  "responseHeader":{
    "status":0,
    "QTime":2,
    "params":{
      "q":"kin*ase",
      "defType":"edismax",
      "debug":"all",
      "qf":"TEXT__gene_product",
      "fl":"id,document-type,TEXT__gene_product,score",
      "stopwords":"true"}},
  "response":{"numFound":0,"start":0,"maxScore":0.0,"docs":[]
  },
  "debug":{
    "rawquerystring":"kin*ase",
    "querystring":"kin*ase",
    "parsedquery":"+DisjunctionMaxQuery((TEXT__gene_product:kin*ase))",
    "parsedquery_toString":"+(TEXT__gene_product:kin*ase)",
    "explain":{},
    "QParser":"ExtendedDismaxQParser",
    "altquerystring":null,
    "boost_queries":null,
    "parsed_boost_queries":[],
    "boostfuncs":null,
    "timing":{
      "time":2.0,
      "prepare":{
        "time":1.0,
        "query":{
          "time":1.0},
        "facet":{
          "time":0.0},
        "facet_module":{
          "time":0.0},
        "mlt":{
          "time":0.0},
        "highlight":{
          "time":0.0},
        "stats":{
          "time":0.0},
        "expand":{
          "time":0.0},
        "terms":{
          "time":0.0},
        "debug":{
          "time":0.0}},
      "process":{
        "time":1.0,
        "query":{
          "time":0.0},
        "facet":{
          "time":0.0},
        "facet_module":{
          "time":0.0},
        "mlt":{
          "time":0.0},
        "highlight":{
          "time":0.0},
        "stats":{
          "time":0.0},
        "expand":{
          "time":0.0},
        "terms":{
          "time":0.0},
        "debug":{
          "time":0.0}}}}}

    <dynamicField name="TEXT__*" type="text_en_splitting" indexed="true" stored="true" storeOffsetsWithPositions="true" termVectors="true"/>

    <fieldType name="text_en_splitting_tight" class="solr.TextField" positionIncrementGap="100" autoGeneratePhraseQueries="true">
      <analyzer type="index">
        <tokenizer class="solr.WhitespaceTokenizerFactory"/>
        <filter class="solr.SynonymGraphFilterFactory" synonyms="synonyms.txt" ignoreCase="true" expand="false"/>
        <filter class="solr.StopFilterFactory" ignoreCase="true" words="lang/stopwords_en.txt"/>
        <filter class="solr.WordDelimiterGraphFilterFactory" generateWordParts="0" generateNumberParts="0" catenateWords="1" catenateNumbers="1" catenateAll="0"/>
        <filter class="solr.LowerCaseFilterFactory"/>
        <filter class="solr.KeywordMarkerFilterFactory" protected="protwords.txt"/>
        <filter class="solr.EnglishMinimalStemFilterFactory"/>
        <!-- this filter can remove any duplicate tokens that appear at the same position - sometimes
             possible with WordDelimiterGraphFilter in conjuncton with stemming. -->
        <filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
        <filter class="solr.FlattenGraphFilterFactory" />
      </analyzer>
      <analyzer type="query">
        <tokenizer class="solr.WhitespaceTokenizerFactory"/>
        <filter class="solr.SynonymGraphFilterFactory" synonyms="synonyms.txt" ignoreCase="true" expand="false"/>
        <filter class="solr.StopFilterFactory" ignoreCase="true" words="lang/stopwords_en.txt"/>
        <filter class="solr.WordDelimiterGraphFilterFactory" generateWordParts="0" generateNumberParts="0" catenateWords="1" catenateNumbers="1" catenateAll="0"/>
        <filter class="solr.LowerCaseFilterFactory"/>
        <filter class="solr.KeywordMarkerFilterFactory" protected="protwords.txt"/>
        <filter class="solr.EnglishMinimalStemFilterFactory"/>
        <!-- this filter can remove any duplicate tokens that appear at the same position - sometimes
             possible with WordDelimiterGraphFilter in conjuncton with stemming. -->
        <filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
      </analyzer>
    </fieldType>



-----Original Message-----
From: Walter Underwood <wu...@wunderwood.org> 
Sent: Wednesday, February 12, 2020 12:31 AM
To: solr-user@lucene.apache.org
Subject: [External] Re: wildcards match end-of-word?

“kinase*” does match “kinase”. On the page you linked to, it defines “*” as matching "Multiple characters (matches zero or more sequential characters)”.

If it is not matching, you may be using a stemmer on that field or doing some other processing that changes the tokens.

wunder
Walter Underwood
wunder@wunderwood.org
http://observer.wunderwood.org/  (my blog)

> On Feb 11, 2020, at 6:24 PM, Fischer, Stephen <sf...@pennmedicine.upenn.edu> wrote:
> 
> Hi,
> 
> I am a solr newbie.  I was surprised to discover that a search for kinase* returned fewer results than kinase.
> 
> Then I read the wildcard documentation<https://lucene.apache.org/solr/guide/6_6/the-standard-query-parser.html#TheStandardQueryParser-WildcardSearches>, and saw why.  kinase* will not match the word "kinase".
> 
> Our end-users won't expect this behavior.  Presumably the solution would be for them (actually us, on their behalf), to use kinase* OR kinase.
> 
> But that is kind of a hack.
> 
> Is there a way we can configure solr to have wildcards match on end-of-word?
> 
> Thanks,
> Steve