Thanks for the inquiry about “append two fields”; as a result I have added it
as an example in Early Access Release #5 of my Solr 4.x Deep Dive book in the
chapter on update processors. Actually, there are several examples:
- Append One Field to Another with Comma and Space as Delimiter:
<updateRequestProcessorChain name="append-a-onto-b-delim">
<processor class="solr.CloneFieldUpdateProcessorFactory">
<str name="source">alpha_s</str>
<str name="dest">beta_s</str>
</processor>
<processor class="solr.ConcatFieldUpdateProcessorFactory" >
<str name="fieldName">beta_s</str>
</processor>
<processor class="solr.LogUpdateProcessorFactory" />
<processor class="solr.RunUpdateProcessorFactory" />
</updateRequestProcessorChain>
- Append One Field to Another with Space as Delimiter
<updateRequestProcessorChain name="append-a-onto-b-space">
<processor class="solr.CloneFieldUpdateProcessorFactory">
<str name="source">alpha_s</str>
<str name="dest">beta_s</str>
</processor>
<processor class="solr.ConcatFieldUpdateProcessorFactory" >
<str name="fieldName">beta_s</str>
<str name="delimiter"> </str>
</processor>
<processor class="solr.LogUpdateProcessorFactory" />
<processor class="solr.RunUpdateProcessorFactory" />
</updateRequestProcessorChain>
- Append One Field to Another with No Delimiter
<updateRequestProcessorChain name="append-a-onto-b">
<processor class="solr.CloneFieldUpdateProcessorFactory">
<str name="source">alpha_s</str>
<str name="dest">beta_s</str>
</processor>
<processor class="solr.ConcatFieldUpdateProcessorFactory" >
<str name="fieldName">beta_s</str>
<str name="delimiter"></str>
</processor>
<processor class="solr.LogUpdateProcessorFactory" />
<processor class="solr.RunUpdateProcessorFactory" />
</updateRequestProcessorChain>
- Append One Field to Another with Space as Delimiter and Remove the Source
Field
<updateRequestProcessorChain name="append-a-onto-b-space-delete">
<processor class="solr.CloneFieldUpdateProcessorFactory">
<str name="source">alpha_s</str>
<str name="dest">beta_s</str>
</processor>
<processor class="solr.ConcatFieldUpdateProcessorFactory" >
<str name="fieldName">beta_s</str>
<str name="delimiter"> </str>
</processor>
<processor class="solr.IgnoreFieldUpdateProcessorFactory" >
<str name="fieldName">alpha_s</str>
</processor>
<processor class="solr.LogUpdateProcessorFactory" />
<processor class="solr.RunUpdateProcessorFactory" />
</updateRequestProcessorChain>
Let me know if even those examples do not cover your use case.
-- Jack Krupansky
From: Luís Portela Afonso
Sent: Monday, August 05, 2013 7:39 AM
To: solr-user@lucene.apache.org
Subject: Field append
Hi there,
Is that possible to append two fields on solr? i would like to append to
filters with a custom delimiter. Is that possible?
I saw something like a CloneFieldUpdateProcessor, but when i try to use, solr
says that cannot find the class. I saw that in the follow site:
https://issues.apache.org/jira/browse/SOLR-2599
In the comments i saw:
<processor class="solr.FieldCopyProcessorFactory">
<str name="source">category</str>
<str name="dest">category_s</str>
</processor>
But i'm not able to use it too. Once again solr says that cannot find class.
Hope you can help in any way. Thanks
