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From "Tommaso Teofili (JIRA)" <j...@apache.org>
Subject [jira] [Reopened] (OAK-3147) Make it possible to collapse results under jcr:content nodes
Date Wed, 29 Jul 2015 08:29:05 GMT

     [ https://issues.apache.org/jira/browse/OAK-3147?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tommaso Teofili reopened OAK-3147:
----------------------------------

reopening as I've noticed Collapsing query parser's settings can be leveraged to allow:
- not indexing path_collapsed for nodes that are not descendants of jcr:content nodes
- better query time performance
- more precise collapsing on jcr:content nodes based on min(depth)

> Make it possible to collapse results under jcr:content nodes
> ------------------------------------------------------------
>
>                 Key: OAK-3147
>                 URL: https://issues.apache.org/jira/browse/OAK-3147
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: solr
>            Reporter: Tommaso Teofili
>            Assignee: Tommaso Teofili
>             Fix For: 1.2.4, 1.3.4, 1.0.18
>
>
> In some use cases a lot of search results live in descendants of jcr:content nodes although
the caller is only interested in those jcr:content nodes as results (that post filtering being
applied using primary types or other constraints) so that the Solr query could be optimized
by applying Solr's Collapse query parser in order to collapse such documents and therefore
allowing huge improvements in performance, especially on the query engine not having to filter
e.g. 90% of the nodes returned by the index.



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