[jira] [Created] (OAK-3589) Property index with declaringNodeTypes sometimes used by mistake

["Thomas Mueller (JIRA)" <ji...@apache.org>]

Thomas Mueller created OAK-3589:
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             Summary: Property index with declaringNodeTypes sometimes used by mistake
                 Key: OAK-3589
                 URL: https://issues.apache.org/jira/browse/OAK-3589
             Project: Jackrabbit Oak
          Issue Type: Bug
          Components: query
            Reporter: Thomas Mueller
            Assignee: Thomas Mueller


A property index with declaringNodeTypes is sometimes used where it must not be used. Example:

{noformat}
/oak:index/testIndex (oak:QueryIndexDefinition)
    declaringNodeTypes = ['oak:QueryIndexDefinition'] (Name) 
    propertyNames = ['testProp'] (Name) 
    type = 'property'
    x (nt:unstructured)
        testProp = '1234'
    
query:
/jcr:root//element(*, oak:QueryIndexDefinition)[./x/@testProp="1234"]
{noformat}

(please note there should be more nodes, so that index is used for the query and not traversal).

The problem is that the index is used, even thought the property is not in the node itself (of type oak:QueryIndexDefinition), but in a child node (with a different node type).

The the index is used, and the result is empty. If the index is disabled, then traversal is used (or another index), and the correct result is returned.



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