CODEWITHSUNDEEP
solr
burnersk
burnersk

Reputation: 3480

How to make Solr query returning results grouped by field

I like to channel Solr search results at query time. For example I have three channels: products, faq and other_docs. All within the same Solr core with the same fields filled. What I would like to acceive is to have Solr group the results "channel" for me.

Sample database (csv):

id,channel,name,desc
1,product,Some product,This is an very cool product!
2,product,Other product,This is an other product!
3,faq,How to stuff,This time: Simply do it!
4,other_docs,Legal notice,All your base are belong to us!

Wanted query result (xml):

<?xml version="1.0" encoding="UTF-8"?>
<response>

<lst name="grouped">
  <lst name="channel">
    <int name="matches">3</int>
    <arr name="groups">
      <lst>
        <str name="groupValue">product</str>
        <result name="doclist" numFound="2" start="0">
          <doc>
            <str name="name">Some product</str>
            <str name="desc">This is an very cool product!</str></doc>
          <doc>
            <str name="name">Other product</str>
            <str name="desc">This is an other product!</str></doc>
        </result>
      </lst>
      <lst>
        <str name="groupValue">faq</str>
        <result name="doclist" numFound="1" start="0">
          <doc>
            <str name="name">How to stuff</str>
            <str name="desc">This time: Simply do it!</str></doc>
        </result>
      </lst>
    </arr>
  </lst>
</lst>
</response>

How do I acceive this?

Upvotes: 0

Views: 1468

Answers (1)

sidgate
sidgate

Reputation: 15244

Check Field collapsing feature in SOLR

Result Grouping / Field Collapsing

Upvotes: 1

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