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From "Michael McCandless (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-3001) Add TrieFieldHelper lucene so we can write solr compatible Trie* fields w/o solr dependency
Date Tue, 29 Mar 2011 20:50:06 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-3001?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13012689#comment-13012689
] 

Michael McCandless commented on LUCENE-3001:
--------------------------------------------

With stored fields we are free to store flags w/ each stored field.  Meaning, each doc has
its own "private schema".

EG we can record that "this field is a NumericField" and store it in binary format.

Then, we can also provide a NumericField at search time (instead of "normal" field from converting
the numeric value from indexing time, to a string).

Does that help?  Is the binary format better/preferred (because it's more compact)?

> Add TrieFieldHelper lucene so we can write solr compatible Trie* fields w/o solr dependency
> -------------------------------------------------------------------------------------------
>
>                 Key: LUCENE-3001
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3001
>             Project: Lucene - Java
>          Issue Type: New Feature
>            Reporter: Ryan McKinley
>            Priority: Minor
>         Attachments: LUCENE-3001-TrieFieldHelper.patch
>
>
> The solr support for numeric fields writes the stored value as binary vs the lucene NumericField
> We should move this logic to a helper class in lucene core so that libraries that do
not depend on solr can write TrieFields that solr can read.

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