[jira] Updated: (JCR-1064) Optimize queries that check for the existence of a property

["Ard Schrijvers (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/JCR-1064?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ard Schrijvers updated JCR-1064:
--------------------------------

    Attachment: JCR-1064.patch

Patch that implements JCR-1064. 

Changes: 

FieldNames.java
LuceneQueryBuilder.java
NodeIndexer.java
QueryImpl.java
SearchIndex.java

> Optimize queries that check for the existence of a property
> -----------------------------------------------------------
>
>                 Key: JCR-1064
>                 URL: https://issues.apache.org/jira/browse/JCR-1064
>             Project: Jackrabbit
>          Issue Type: Improvement
>          Components: indexing
>    Affects Versions: 1.3.1
>            Reporter: Ard Schrijvers
>            Priority: Minor
>             Fix For: 1.4
>
>         Attachments: JCR-1064.patch
>
>
> //*[@mytext] is transformed into the org.apache.jackrabbit.core.query.lucene.MatchAllQuery, that through the MatchAllWeight uses the MatchAllScorer.  The calculateDocFilter() in MatchAllScorer  does not scale and becomes slow for growing number of nodes. 
> Solution: lucene documents will get a new Field:
> public static final String PROPERTIES_SET = "_:PROPERTIES_SET".intern();
> that holds the available properties of this document. 
> NOTE: Lucene indices build without this performance improvement should still work and fall back to the original implementation

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