Search code examples
solrdatastax-enterprisesolr4

Solr ignoring slash order

I have an index field called: texts

The field contains values like: 12/1

And also: 1/12

The problem is when I query: texts:"1/*"

It's finding also 12/1 it's like the slash don't have any meaning.

How I can limit the results by order?

(I've tried texts:"1\/*" and it's not working)

The type of the field:

<fieldType class="org.apache.solr.schema.TextField" name="TextField">
Solution

  • The problem is that you're using the TextField type that performs tokenization of your text, and then additional filtering, like, lower-casing, etc. In your case, you don't have value 12/1 in your index, but you have 2 values, 12 and 1, for both first & second values, so you search for 1/* will match to both records because search will be performed for value 1 that was generated after tokenization of your input.

    To keep string from tokenization you need:

    • either use StrField type instead - but in this case, the string will be indexed as-is, without lower-casing, etc.
    • if you want to have lower-casing, etc., then define a new type for your field, but use solr.KeywordTokenizerFactory as tokenizer, and add corresponding filters.

    You can read more in the DataStax documentation. Also note, that starting with version 6, default type for text data is StrField, and you need explicitly define TextField if you need tokenization, etc.