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https://issues.apache.org/jira/browse/LUCENE-6212?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14300154#comment-14300154
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Shai Erera commented on LUCENE-6212:
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That doesn't help. If all your documents have a 'title' and 'body' fields (with
an additional 'language'), you want the content to be indexed under the 'title'
and 'body' fields, and not 'title_en' and 'title_de'. Well maybe you do/should
but the point is that you have a single schema for your documents. The only
thing that changes is how they are tokenized, and that's on a per-document
basis, depending on its language.
> Remove IndexWriter's per-document analyzer add/updateDocument APIs
> ------------------------------------------------------------------
>
> Key: LUCENE-6212
> URL: https://issues.apache.org/jira/browse/LUCENE-6212
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Fix For: 5.0, Trunk, 5.1
>
> Attachments: LUCENE-6212.patch
>
>
> IndexWriter already takes an analyzer up-front (via
> IndexWriterConfig), but it also allows you to specify a different one
> for each add/updateDocument.
> I think this is quite dangerous/trappy since it means you can easily
> index tokens for that document that don't match at search-time based
> on the search-time analyzer.
> I think we should remove this trap in 5.0.
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