You can use "Regex Transformer" to extract from a source field.
See:
http://wiki.apache.org/solr/DataImportHandler#RegexTransformer
-- Jack Krupansky
-----Original Message-----
From: Husain, Yavar
Sent: Thursday, May 10, 2012 6:04 AM
To: solr-user@lucene.apache.org
Subject: Solr On Fly Field creation from full text for N-Gram Indexing
I have full text in my database and I am indexing that using Solr. Now at
runtime i.e. when the indexing is going on can I extract certain parameters
based on regex and create another field/column on the fly using Solr for
that extracted text?
For example my DB has just 2 columns (DocId & FullText):
DocId FullText
1 My name is Avi. RoleId: GYUIOP-MN-1087456. .....
Now say while indexing I want to extract RoleId, place it in another column
created on fly and index that column using N-Gram indexing. I dont want to
go for N-Gram of Full text as that would be too time expensive.
Thanks!! Any clues would be appreciated.
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