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https://issues.apache.org/jira/browse/LUCENE-6819?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15888561#comment-15888561
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Uwe Schindler commented on LUCENE-6819:
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+1 to remove index time boost. I always recommend to user to add doc values
fields and use a function query (its just wrapping the query, very easy
anyways!). About Solr users: I don't even know if it is at all possible with
Solr to add index time boosts?
> Deprecate index-time boosts?
> ----------------------------
>
> Key: LUCENE-6819
> URL: https://issues.apache.org/jira/browse/LUCENE-6819
> Project: Lucene - Core
> Issue Type: Task
> Reporter: Adrien Grand
> Priority: Minor
> Attachments: LUCENE-6819-wip.patch
>
>
> Follow-up of this comment:
> https://issues.apache.org/jira/browse/LUCENE-6818?focusedCommentId=14934801&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14934801
> Index-time boosts are a very expert feature whose behaviour is tight to the
> Similarity impl. Additionally users have often be confused by the poor
> precision due to the fact that we encode values on a single byte. But now we
> have doc values that allow you to encode any values the way you want with as
> much precision as you need so maybe we should deprecate index-time boosts and
> recommend to encode index-time scoring factors into doc values fields instead.
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