SOLR：如何在字段值中使用通配符和问号

Question

I've read a lot of pages for last few days, but can find any samples for configuring field analizer for following situation:
- field value may contain both ? and *:

• abcdef1;
• ab?de?2;
• abc?e*.

- query may contain it too:

• "ab??e*" and "ab*"- as result should resolve all documents;
• "ab1*" - only second.

Is it possible to configure SOLR in that way?

Answer 1

In this case you may need to create your field type and apply the same to your field.

Your field type should consist of such tokenizer and filter which will generate the tokens.

You can read more on the use tokenizer and filter on the solr wiki page.

You can also have different analyzer for indexing and query.

This also depends on your requirement.

I would suggest you to try below field type.

You can add the below field type in your schema.xml. Use the "partial_search" fieldType for your field(s) where you want to perform the partial/wildcard search.

Once you are done with schema.xml changes, you need to do the restart the server ans re-index the data.

<fieldType name="partial_search" class="solr.TextField" positionIncrementGap="100">
    <analyzer type="index">
        <tokenizer class="solr.KeywordTokenizerFactory"/>
        <tokenizer class="solr.NGramTokenizerFactory" minGramSize="2" maxGramSize="10"/>
    </analyzer>
    <analyzer type="query">
        <tokenizer class="solr.KeywordTokenizerFactory"/>
    </analyzer>
</fieldType>