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https://issues.apache.org/jira/browse/SOLR-3897?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13471974#comment-13471974
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Yonik Seeley commented on SOLR-3897:
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preserveMulti implies getting values back for every field value, hence we
always should regardless of what snippets is set to.
If we aren't changing the request format, it still seems like the most sane
thing is to show all field values and have exactly one snippet per field value.
> Preserve multi-value fields during hit highlighting
> ---------------------------------------------------
>
> Key: SOLR-3897
> URL: https://issues.apache.org/jira/browse/SOLR-3897
> Project: Solr
> Issue Type: Improvement
> Components: highlighter
> Reporter: Joel Bernstein
> Assignee: Yonik Seeley
> Priority: Minor
> Fix For: 4.1
>
> Attachments: SOLR-3897.patch, SOLR-3897.patch
>
>
> The behavior of the default Solr hit highlighter on multi-value fields is to
> only return the values that have a hit and sort them by score.
> This ticket supplies a patch that adds a new highlight parameter called
> "preserveMulti" which can be used on a feild by field basis to return all of
> the values in their original order. If this parameter is used, the values
> that have a hit are highlighted and the ones that do not contain a hit are
> returned un-highlighted.
> The "preserveMulti" parameter works with the default standard highlighter and
> follows the standard highlighting conventions.
> Sample usage for a field called "cat":
> f.cat.hl.preserveMulti=true
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