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https://issues.apache.org/jira/browse/LUCENENET-513?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13498795#comment-13498795
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Hadrien HUGOT commented on LUCENENET-513:
-----------------------------------------
Ok, I am then fixing the issue. Thank you.
Fix in revision 1410304
> GetFieldQuery in MultiFieldQueryParser not handle properly Boosts
> -----------------------------------------------------------------
>
> Key: LUCENENET-513
> URL: https://issues.apache.org/jira/browse/LUCENENET-513
> Project: Lucene.Net
> Issue Type: Bug
> Components: Lucene.Net Core
> Affects Versions: Lucene.Net 3.0.3
> Reporter: Hadrien HUGOT
> Attachments: LUCENENET-513-Fix.patch
>
>
> Regression between Lucene 2.9.4g and Lucene 3.0.3 in the method GetFieldQuery
> of MultiFieldQueryParser with the boosts factor.
> {noformat}
> public class MultiFieldQueryParser : QueryParser {
> protected internal override Query GetFieldQuery(string field, string
> queryText, int slop)
> {
> ...
> //If the user passes a map of boosts
> if (boosts != null)
> {
> //Get the boost from the map and apply them
> Single boost = boosts[fields[i]];
> q.Boost = boost;
> }
> ...
> {noformat}
> If all fields don't have a boost factor an exception is throw by "Single
> boost = boosts[fields[i]];"
> In version 2.9.4g, a check was performed, and no boost were apply if the
> field is not boosted.
> I added a patch with the following modification:
> {noformat}
> //Get the boost and apply them if exists
> float boost;
> if (boosts.TryGetValue(fields[i], out boost))
> q.Boost = boost;
> {noformat}
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