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https://issues.apache.org/jira/browse/SOLR-6492?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16028623#comment-16028623
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David Smiley commented on SOLR-6492:
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Nice strategy Jan R.!
> Solr field type that supports multiple, dynamic analyzers
> ---------------------------------------------------------
>
> Key: SOLR-6492
> URL: https://issues.apache.org/jira/browse/SOLR-6492
> Project: Solr
> Issue Type: New Feature
> Components: Schema and Analysis
> Reporter: Trey Grainger
> Fix For: 5.0
>
>
> A common request - particularly for multilingual search - is to be able to
> support one or more dynamically-selected analyzers for a field. For example,
> someone may have a "content" field and pass in a document in Greek (using an
> Analyzer with Tokenizer/Filters for German), a separate document in English
> (using an English Analyzer), and possibly even a field with mixed-language
> content in Greek and English. This latter case could pass the content
> separately through both an analyzer defined for Greek and another Analyzer
> defined for English, stacking or concatenating the token streams based upon
> the use-case.
> There are some distinct advantages in terms of index size and query
> performance which can be obtained by stacking terms from multiple analyzers
> in the same field instead of duplicating content in separate fields and
> searching across multiple fields.
> Other non-multilingual use cases may include things like switching to a
> different analyzer for the same field to remove a feature (i.e. turning
> on/off query-time synonyms against the same field on a per-query basis).
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