I have discovered some weirdness with our Minimum Match functionality.
Essentially it comes up with absolutely no results on certain queries.
Basically, searches with 2 words and 1 being ³the² don¹t have a return
result. From what we can gather the minimum match criteria is making it
such that if there are 2 words then both are required. Unfortunately, the
stopwords are pulled resulting in ³the² being removed and then solr is
requiring 2 words when only 1 exists to match on. Is there a way around
this? I really need it to either require only non-stopwords or not filter
out stopwords. We know stopwords are causing the issue because taking out
the stopwords fixes the problem. Also, we can change mm setting to 75% and
fix the problem.
Example:
Brand: The North Face
Search: the north (returns no results)
Our config is basically:
MM: str name="mm">2<-1</str>
FieldType:
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
<filter class="solr.WordDelimiterFilterFactory"
generateWordParts="1" generateNumberParts="1" catenateWords="1"
catenateNumbers="1" catenateAll="0" splitOnCaseChange="1"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.StopFilterFactory" ignoreCase="true"
words="stopwords.txt"/>
<filter class="solr.SynonymFilterFactory"
synonyms="synonyms.txt" ignoreCase="true" expand="true"/>
<filter class="solr.EnglishPorterFilterFactory"
protected="protwords.txt"/>
<filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
