Over a million developers have joined DZone.

Facet Over The Same Field Multiple Times With Different Filters in Solr

· DevOps Zone

The DevOps zone is brought to you in partnership with Sonatype Nexus. The Nexus suite helps scale your DevOps delivery with continuous component intelligence integrated into development tools, including Eclipse, IntelliJ, Jenkins, Bamboo, SonarQube and more. Schedule a demo today

Did you know that you can facet over the same field more than once? Did you know that you can rename the facet field? Did you know that you have display the facet with different filters?

Let’s say I want to look at the number of StackOverflow answers for recent questions as compared to the number of answers across all questions ever asked. I did this be creating a filter query tagged with “moreRecent.” And then I faceted over the AnswerCount field twice, once with the alias of RecentAnswerCount and once with the alias of TotalAnswerCount. The later facet excluded the “moreRecent” filter query.

Here’s the query:

&fq={!tag=moreRecent}CreationDate:[2011-08-05T19:34:49.473Z TO NOW]
&facet.field={!key=TotalAnswerCount ex=moreRecent}AnswerCount

And here is the response:

<lst name="facet_fields">
        </lst><lst name="RecentAnswerCount">
            <int name="2">2543</int>
            <int name="1">2059</int>
            <int name="3">1831</int>
            <int name="4">1015</int>
            <int name="5">514</int>
            <int name="6">222</int>
            <int name="7">114</int>
            <int name="0">95</int>
            <int name="8">77</int>
            <int name="9">44</int>
            <int name="10">24</int>
            <int name="11">12</int>
            <int name="12">9</int>
            <int name="14">8</int>
            <int name="13">6</int>
            <int name="15">4</int>
            <int name="16">4</int>
            <int name="18">3</int>
            <int name="17">2</int>
            <int name="19">2</int>
            <int name="21">2</int>
            <int name="22">2</int>
            <int name="20">1</int>
            <int name="23">1</int>
            <int name="25">1</int>
            <int name="26">1</int>
            <int name="28">1</int>
            <int name="24">0</int>
            <int name="42">0</int>
            <int name="116">0</int>
        <lst name="TotalAnswerCount">
            <int name="2">4862</int>
            <int name="3">3729</int>
            <int name="1">3582</int>
            <int name="4">2116</int>
            <int name="5">1172</int>
            <int name="6">560</int>
            <int name="7">297</int>
            <int name="8">183</int>
            <int name="0">173</int>
            <int name="9">109</int>
            <int name="10">62</int>
            <int name="11">38</int>
            <int name="12">26</int>
            <int name="14">19</int>
            <int name="13">16</int>
            <int name="15">12</int>
            <int name="16">7</int>
            <int name="18">6</int>
            <int name="19">5</int>
            <int name="21">5</int>
            <int name="17">3</int>
            <int name="22">3</int>
            <int name="20">2</int>
            <int name="23">1</int>
            <int name="24">1</int>
            <int name="25">1</int>
            <int name="26">1</int>
            <int name="28">1</int>
            <int name="42">1</int>
            <int name="116">1</int>

The DevOps zone is brought to you in partnership with Sonatype Nexus. Use the Nexus Suite to automate your software supply chain and ensure you're using the highest quality open source components at every step of the development lifecycle. Get Nexus today


Published at DZone with permission of John Berryman, DZone MVB. See the original article here.

Opinions expressed by DZone contributors are their own.

The best of DZone straight to your inbox.

Please provide a valid email address.

Thanks for subscribing!

Awesome! Check your inbox to verify your email so you can start receiving the latest in tech news and resources.

{{ parent.title || parent.header.title}}

{{ parent.tldr }}

{{ parent.urlSource.name }}