Values of the field [street] in my DB may be "Castle Road"
However, I want to be able to find these values using lowercase including
dashes, so "castle-road" would be a match.
When I use fieldtype "text_lower_space", which holds a
solr.WhitespaceTokenizerFactory, the value is split in 2 values, "Castle"
and "Road".
When I use type "string" of fieldtype "solr.StrField", I can not search
lowercase and still find values which hold uppercase characters, such as
"Castle Road".
I need to be able to find values (regardless of their casing) using a
lowercase query.
I will be using the [street] field to display facets, so the text displayed
to the user should be the exact value including casing from field [street],
however, when I search on the field, "castle-road" should return a match.
original value found on
Castle Road castle-road
Oak-tree lane oak-tree-lane
The problem now is that I don't know which tokenizer I need to use, both for
index and query.
<fieldType name="text_lower_space" class="solr.TextField"
positionIncrementGap="100">
<analyzer type="index">
<tokenizer class="solr.KeywordTokenizerFactory"/>
<filter class="solr.WordDelimiterFilterFactory"
generateWordParts="1" generateNumberParts="1" catenateWords="1"
catenateNumbers="1" catenateAll="0" splitOnCaseChange="1"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
</analyzer>
<analyzer type="query">
<tokenizer class="solr.KeywordTokenizerFactory"/>
<filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt"
ignoreCase="true" expand="true"/>
<filter class="solr.WordDelimiterFilterFactory"
generateWordParts="1" generateNumberParts="1" catenateWords="0"
catenateNumbers="0" catenateAll="0" splitOnCaseChange="1"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
</analyzer>
</fieldType>
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