[jira] [Updated] (OAK-2517) Support IS NULL based property restrictions in LucenePropertyIndex

["Chetan Mehrotra (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/OAK-2517?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chetan Mehrotra updated OAK-2517:
---------------------------------
    Attachment: OAK-2517.patch

Patch implementing the above approach. Here it is assumed that a PropertyRestriction mean following

{code}
    static boolean propertyNotNullRestriction(PropertyRestriction pr) {
        return pr.first == null && pr.last == null && !pr.lastIncluding && !pr.firstIncluding;
    }

    static boolean propertyIsNullRestriction(PropertyRestriction pr) {
        return pr.first == null && pr.last == null && pr.lastIncluding && pr.firstIncluding;
    }
{code}

> Support IS NULL based property restrictions in LucenePropertyIndex
> ------------------------------------------------------------------
>
>                 Key: OAK-2517
>                 URL: https://issues.apache.org/jira/browse/OAK-2517
>             Project: Jackrabbit Oak
>          Issue Type: New Feature
>          Components: oak-lucene
>            Reporter: Chetan Mehrotra
>            Assignee: Chetan Mehrotra
>             Fix For: 1.2, 1.0.12
>
>         Attachments: OAK-2517.patch
>
>
> Currently queries involving IS NULL perform slow with Lucene as they are implemented as a filter. Instead such restriction should be evaluated via index itself



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