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https://issues.apache.org/jira/browse/JCR-1064?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12524081
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Ard Schrijvers commented on JCR-1064:
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We could move the code for the index format check to the multiIndex
constructor, isn't? If we do the check before the Recovery.run(this, redoLog);
we can use handler.setIndexFormatVersion(IndexFormatVersion indexFormatVersion)
from the multiIndex constructor.
OTOH, perhaps putting the code in the multiIndex is not the best place. WDYT?
> 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-1064-2.patch, JCR-1064-2.patch, JCR-1064-2.patch,
> JCR-1064-2.patch, JCR-1064-DEPR.patch
>
>
> //[EMAIL PROTECTED] 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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