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https://issues.apache.org/jira/browse/SOLR-8583?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15304104#comment-15304104
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David Smiley commented on SOLR-8583:
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This is certainly committable; I think you can commit it as-is if you want, or
make further tweaks based on my remaining minor comments.
You could move this line (that already existed) higher up so that you needn't
re-pull it out in the highlighting alternate code
* int alternateFieldLen = params.getFieldInt(fieldName,
HighlightParams.ALTERNATE_FIELD_LENGTH, 0);
* why the max(18,altFieldLen) ? 18 seems like a magic number.... if someone
sets the alt field length to some silly low number then it's there prerogative
to do so?
bq. If you search "keyword" on t_text you will not get any hits :-)
hehe, well, consider dismax with multiple fields.
Docs looks good, basically. I'll correct a small grammatical error.
> Apply highlighting to hl.alternateField
> ---------------------------------------
>
> Key: SOLR-8583
> URL: https://issues.apache.org/jira/browse/SOLR-8583
> Project: Solr
> Issue Type: Improvement
> Components: highlighter
> Affects Versions: 5.4
> Reporter: Jan Høydahl
> Assignee: Jan Høydahl
> Labels: fallback, highlighter
> Fix For: 6.1, master (7.0)
>
> Attachments: SOLR-8583.patch, SOLR-8583.patch, SOLR-8583.patch,
> SOLR-8583.patch, SOLR-8583.patch
>
>
> Today, you can configure hl.alternateField for highlighter to display if no
> snippets were produced from original field. But the contents of the fallback
> field is output without highlighting the original query terms.
> This issue will cause alternate field to be highlighted with no snippet
> generation, and still respect max length. You can turn it off using new param
> {{hl.highlightAlternate=false}}. Supported highlighters: Simple, FVH
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