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From "Mark Harwood (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-2454) Nested Document query support
Date Tue, 07 Jun 2011 09:23:59 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2454?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13045334#comment-13045334
] 

Mark Harwood commented on LUCENE-2454:
--------------------------------------

bq. Looking at the structure of the BooleanQuery, I would expect this to work correctly.

I've found it to be robust so far - you just need to be clear about directing criteria at
only one child or potentially different children. 
The main challenge in using this functionality is allowing users to articulate the nuances
of such queries and Lucene-3133 is a holding place for this.

Under the covers using the same cached filter for parent filters certainly helps with performance
and I typically wrap the ParentFilter tag in the XML queries with a <CachedFilter> tag
to achieve this

> Nested Document query support
> -----------------------------
>
>                 Key: LUCENE-2454
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2454
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: core/search
>    Affects Versions: 3.0.2
>            Reporter: Mark Harwood
>            Assignee: Mark Harwood
>            Priority: Minor
>         Attachments: LUCENE-2454.patch, LuceneNestedDocumentSupport.zip
>
>
> A facility for querying nested documents in a Lucene index as outlined in http://www.slideshare.net/MarkHarwood/proposal-for-nested-document-support-in-lucene

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