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https://issues.apache.org/jira/browse/OAK-8934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17088783#comment-17088783
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Julian Reschke commented on OAK-8934:
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Wait, why is this backported to 1.8 before it gets backported to 1.22????
> Indexing: filter entries with a regular expression
> --------------------------------------------------
>
> Key: OAK-8934
> URL: https://issues.apache.org/jira/browse/OAK-8934
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: indexing
> Reporter: Thomas Mueller
> Assignee: Thomas Mueller
> Priority: Major
> Labels: amrit
> Fix For: 1.26.0
>
> Attachments: OAK-8934-1_8.patch, OAK-8934-1_8_svn.patch
>
>
> We should provide a way to filter the index using a regular expression. For
> example, only index nodes that contain a reference to another node. (Not a
> JCR reference, but a reference within the value itself). For example, index a
> node if one of the properties contains:
> * /content/abc
> * <html...> <a href="/content/abc">
> * and so on
> This will allow to run a query to find if /content/abc is referenced. The
> index and the query will probably need to use a tag, and the cost of the
> index needs to be high. Otherwise the query engine can't know when this index
> should be used.
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