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https://issues.apache.org/jira/browse/OAK-1432?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas Mueller resolved OAK-1432.
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Resolution: Fixed
Revision 1570093
> Query: use "union" for complex XPath queries that use multiple "or"
> -------------------------------------------------------------------
>
> Key: OAK-1432
> URL: https://issues.apache.org/jira/browse/OAK-1432
> Project: Jackrabbit Oak
> Issue Type: Bug
> Reporter: Thomas Mueller
> Assignee: Thomas Mueller
> Fix For: 0.18
>
>
> The following XPath query is converted to a union, however there is still an
> "or" in the converted query, which means the query still can't use all
> indexes and has to traverse the whole repository:
> {noformat}
> /jcr:root/a/b//element(*, nt:unstructured)[(
> (@sling:resourceType = 'x'
> or @sling:resourceType = 'dam/collection')
> or @sling:resourceSuperType = 'dam/collection')]
> {noformat}
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