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From "Yuki Yano (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SOLR-11470) Negative queries always return "No Results" with rq parameter.
Date Thu, 12 Oct 2017 06:40:00 GMT

     [ https://issues.apache.org/jira/browse/SOLR-11470?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yuki Yano updated SOLR-11470:
-----------------------------
    Attachment: SOLR-11470.patch

> Negative queries always return "No Results" with rq parameter.
> --------------------------------------------------------------
>
>                 Key: SOLR-11470
>                 URL: https://issues.apache.org/jira/browse/SOLR-11470
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: search
>            Reporter: Yuki Yano
>         Attachments: SOLR-11470.patch
>
>
> h3. Overview
> Negatives queries (ex. {{q=NOT foo}}) always return "No Results" with rq parameter (ex.
{{rq=\{!rerank reRankQuery=bar\}}}). This is because {{QueryUtils#makeQueryable}} doesn't
consider RankQuery and fails to modify wrapped pure negative queries to searchable ones (ex.
modifies {{q=NOT foo}} to {{q=(NOT foo) AND \*:\*}}). Pure negative queries are rewritten
as {{MatchNoDocsQuery}} by {{BooleanQuery#rewrite}} and this results in {{numFound="0"}}.
> h3. How to reproduce
> # Prepare solr server according to [Solr Tutorial|http://lucene.apache.org/solr/guide/7_0/solr-tutorial.html].
> # Search with {{/solr/techproducts/query?q=NOT foo}}. This returns 52 documents as the
result.
> # Search with {{/solr/techproducts/query?q=NOT foo&rq=\{!rerank reRankQuery=bar\}}}.
This returns 0 document (52 documents are expected though...) as the result.
> h3. How to fix
> Add new API {{RankQuery#getMainQuery}} to be able to get the wrapped query from {{RankQuery}},
and use it in {{QueryUtils#makeQueryable}} to fix the original query if given argument {{Query
q}} is instance of {{RankQuery}}.



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