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https://issues.apache.org/jira/browse/OAK-2529?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas Mueller resolved OAK-2529.
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Resolution: Fixed
Revision 1661868 (trunk)
Revision 1661869 (1.0 branch)
> Index usage for "not equals" conditions
> ---------------------------------------
>
> Key: OAK-2529
> URL: https://issues.apache.org/jira/browse/OAK-2529
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: query
> Reporter: Thomas Mueller
> Assignee: Thomas Mueller
> Fix For: 1.2, 1.0.12, 1.1.8
>
>
> Queries with "not equals" conditions don't currently use an index. Example:
> {noformat}
> /jcr:root/content//*[@contentType != 'container']
> {noformat}
> Such conditions should result in a "not null" property restrictions (so that
> property indexes can be used if available, and if there are only few entries
> for this property).
> Also, "not equal" need to be used and supported in the filter. Currently, in
> FilterImpl, this is not supported and used, and would throw a
> IllegalArgumentException if used. This is for indexes that natively support
> this feature (such as Apache Lucene and Solr).
> Also, this needs to be supported in the Lucene and Solr index.
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