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https://issues.apache.org/jira/browse/SOLR-3085?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13198104#comment-13198104
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Hoss Man commented on SOLR-3085:
--------------------------------
bq. So we get a required DisMax Query for alltags:the which does not match any
docs.
I think you are missreading that output...
{code{
+( ( DisjunctionMaxQuery((alltags:the)~0.01)
DisjunctionMaxQuery((title_en:contract | alltags:contract)~0.01)
)~2
)
{code}
The "DisjunctionMaxQuery((alltags:the)~0.01)" clause is not required in that
query. it is one of two SHOULD clauses in a boolean query, and becomes subject
to the same "mm" rule. both clauses in that BooleanQuery are already SHOULD
clauses, so i don't know what it would mean to make then more "optional".
> Fix the dismax/edismax stopwords mm issue
> -----------------------------------------
>
> Key: SOLR-3085
> URL: https://issues.apache.org/jira/browse/SOLR-3085
> Project: Solr
> Issue Type: Bug
> Components: search
> Reporter: Jan Høydahl
> Labels: MinimumShouldMatch, dismax, stopwords
> Fix For: 3.6, 4.0
>
>
> As discussed here http://search-lucene.com/m/Wr7iz1a95jx and here
> http://search-lucene.com/m/Yne042qEyCq1 and here
> http://search-lucene.com/m/RfAp82nSsla DisMax has an issue with stopwords if
> not all fields used in QF have exactly same stopword lists.
> Typical solution is to not use stopwords or harmonize stopword lists across
> all fields in your QF, or relax the MM to a lower percentag. Sometimes these
> are not acceptable workarounds, and we should find a better solution.
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