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https://issues.apache.org/jira/browse/OAK-1067?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13784961#comment-13784961
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Thomas Mueller commented on OAK-1067:
-------------------------------------
I think the behavior of Oak is correct (that is, according to the JCR
specification), and also compatible with Jackrabbit. At least for this test
case.
As far as I understand, the condition {{@prop = 'false' or not(@prop)}} means
"the property value of 'prop' is either false, or the property 'prop' does not
exist". I would expect the result of the query to be at least /content and
/content/two, but not /content/one.
This is also the result I get. I have re-written the test using the JCR API and
ran it against Oak and Jackrabbit 2.x, and got the same result for both:
{code}
public void testNotProp() throws Exception {
Session session = getHelper().getReadWriteSession();
// OAK: Session session = getAdminSession();
Node content = session.getRootNode().addNode("content");
content.addNode("one").setProperty("prop", true);
content.addNode("two");
session.save();
String query = "//*[@prop = 'false' or not(@prop) ]";
QueryResult r = session.getWorkspace().getQueryManager().createQuery(
query, Query.XPATH).execute();
NodeIterator it = r.getNodes();
System.out.println("query: " + query);
while (it.hasNext()) {
String path = it.nextNode().getPath();
if (path.startsWith("/content")) {
System.out.println(" " + path);
}
}
}
{code}
> XPath query fails on negated boolean properties
> ------------------------------------------------
>
> Key: OAK-1067
> URL: https://issues.apache.org/jira/browse/OAK-1067
> Project: Jackrabbit Oak
> Issue Type: Bug
> Components: core, query
> Reporter: Alex Parvulescu
> Assignee: Thomas Mueller
> Attachments: OAK-1067-test.patch
>
>
> The issue can be seen when running an xpath query for nodes that have a
> boolean property set to false:
> bq. //*[(child/@prop = 'false' or not(child/@prop))]
> this translates into
> bq. select [jcr:path], [jcr:score], * from [nt:base] as a where [child/prop]
> = false or [child/prop] is null
> the second _or_ part is wrong and selects more than it should: 'or
> [child/prop] is null'
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