Hi, You can use KeywordTokenizer and LowerCaseTokenFilterFactory. HTH, Emir -- Monitoring - Log Management - Alerting - Anomaly Detection Solr & Elasticsearch Consulting Support Training - http://sematext.com/
> On 1 Nov 2017, at 09:50, Zheng Lin Edwin Yeo <edwinye...@gmail.com> wrote: > > Hi, > > Would like to find out, what is the best way to lower-case a String index > in Solr, to make it case insensitive, while preserving the structure of the > string (ie It should not break into different tokens at space, and should > not remove any characters or symbols) > > I found that solr.StrField does not use lower case filter. But if I change > it to solr.TextField and uses Standard Tokenizer, the fields get broken up. > > Eg: > > For this configuration, > > <fieldType name="string_lower" class="solr.TextField" > positionIncrementGap="100" autoGeneratePhraseQueries="false"> > <analyzer type="index"> > <tokenizer class="solr.StandardTokenizerFactory"/> > <filter class="solr.LowerCaseFilterFactory"/> > </analyzer> > <analyzer type="query"> > <tokenizer class="solr.StandardTokenizerFactory"/> > <filter class="solr.LowerCaseFilterFactory"/> > </analyzer> > </fieldType> > > The string "*SYStem 500 **" gets broken down into this > > *system | 500* > > The system and 500 are separated into 2 tokens, which is not what we want. > Also, the * is being removed. > > > We will like to have something like this. This will preserve what it is as > a string but just lowercase it. > > *system 500 **
