[infinispan-issues] [JBoss JIRA] (ISPN-7982) Ickle purely negative fulltext subqueries cause empty results

Adrian Nistor (JIRA) issues at jboss.org
Mon Jun 26 05:39:00 EDT 2017


     [ https://issues.jboss.org/browse/ISPN-7982?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Adrian Nistor updated ISPN-7982:
--------------------------------
    Status: Open  (was: New)


> Ickle purely negative fulltext subqueries cause empty results
> -------------------------------------------------------------
>
>                 Key: ISPN-7982
>                 URL: https://issues.jboss.org/browse/ISPN-7982
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Embedded Querying
>    Affects Versions: 9.0.0.Final
>            Reporter: Gustavo Fernandes
>             Fix For: 9.1.0.Final
>
>
> When using parethesis in an Ickle full text predicates, it can generate subqueries that are pure negative, e.g.
> {{from IspnEvent where (tags : ('tagA' and (not 'a0')))}}
> In Lucene, the query 
> {{+tags:taga +(-tags:a0)}}
> is different from 
> {{+tags:taga -tags:a0}}
> The latter works as expected, but the former brings empty results since Lucene does no support purely negative subqueries. In order for the former query to work, it needs to add all documents as another term to the subquery, for e.g. {{+tags:taga +(*:* -tags:a0)}}.



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