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