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Date: Fri, 13 Apr 2012 10:22:13 +0000 (UTC)
From: "Chris Male (Commented) (JIRA)" <jira@apache.org>
To: dev@lucene.apache.org
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Subject: [jira] [Commented] (SOLR-1535) Pre-analyzed field type
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    [ https://issues.apache.org/jira/browse/SOLR-1535?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13253263#comment-13253263 ] 

Chris Male commented on SOLR-1535:
----------------------------------

Can't we just provide an abstraction so people can choose whatever format they want? You might use JSON out-of-box, but Jan could implement an Avro alternative if he wanted too.  That also gives us a way to grow the format as our needs change.
                
> Pre-analyzed field type
> -----------------------
>
>                 Key: SOLR-1535
>                 URL: https://issues.apache.org/jira/browse/SOLR-1535
>             Project: Solr
>          Issue Type: New Feature
>    Affects Versions: 1.5
>            Reporter: Andrzej Bialecki 
>             Fix For: 4.0
>
>         Attachments: SOLR-1535.patch, SOLR-1535.patch, preanalyzed.patch, preanalyzed.patch
>
>
> PreAnalyzedFieldType provides a functionality to index (and optionally store) content that was already processed and split into tokens using some external processing chain. This implementation defines a serialization format for sending tokens with any currently supported Attributes (eg. type, posIncr, payload, ...). This data is de-serialized into a regular TokenStream that is returned in Field.tokenStreamValue() and thus added to the index as index terms, and optionally a stored part that is returned in Field.stringValue() and is then added as a stored value of the field.
> This field type is useful for integrating Solr with existing text-processing pipelines, such as third-party NLP systems.

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