CopyField maxLength property
----------------------------

                 Key: SOLR-538
                 URL: https://issues.apache.org/jira/browse/SOLR-538
             Project: Solr
          Issue Type: Improvement
          Components: update
            Reporter: Nicolas Dessaigne


As discussed shortly on the mailing list (http://www.mail-archive.com/[EMAIL 
PROTECTED]/msg09807.html), the objective of this task is to add a maxLength 
property to the CopyField "command". This property simply limits the number of 
characters that are copied.

This is particularly useful to avoid very slow highlighting when the index 
contains big documents.

Example :
<copyField source="text" dest="highlight" maxLength="30000" />

This approach has also the advantage of limiting the index size for large 
documents (the original text field does not need to be stored and to have term 
vectors). However, the index is bigger for small documents...


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