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From "Alexander Klimetschek (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (JCR-3413) Query with CONTAINS OR LIKE expression returns malformed result
Date Mon, 20 Aug 2012 15:43:38 GMT

    [ https://issues.apache.org/jira/browse/JCR-3413?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13437948#comment-13437948
] 

Alexander Klimetschek commented on JCR-3413:
--------------------------------------------

JCR-SQL and Xpath share the same implementation and anything path-based is considered a join
(in xpath the query would be a join).

The spec mentions that jcr:path is a special property that is calculated on demand at the
end of a query: http://www.day.com/specs/jcr/1.0/8.5.2.2_Pseudo-property_jcr_path.html "Such
an approach would be advantageous for those implementations in which path calculation is expensive."
Jackrabbit's index and (1.0) query engine is such a case (paths are not indexed).
                
> Query with CONTAINS OR LIKE expression returns malformed result
> ---------------------------------------------------------------
>
>                 Key: JCR-3413
>                 URL: https://issues.apache.org/jira/browse/JCR-3413
>             Project: Jackrabbit Content Repository
>          Issue Type: Bug
>          Components: jackrabbit-core
>            Reporter: Dmitry Kuleshov
>         Attachments: LikeOrContainsTest.java
>
>
> Seems that JCR-SQL queries with CONTAINS OR LIKE expressions return malformed results.

> The behavior is like AND operator is used to evaluate the results, though OR operator
is mentioned in the query.
> To simplify The following test is failing:
>    public void testLikeOrContainsClauses() throws Exception
>    {
>       Node foo = testRootNode.addNode("foo");
>       foo.setProperty("mytext", new String[]{"the quick brown fox jumps over the lazy
dog."});
>       Node foo2 = testRootNode.addNode("foo2");
>       foo2.setProperty("mytext", new String[]{"the quick brown dinosaur jumps over the
lazy dog."});
>       testRootNode.save();
>       String sql =
>          "SELECT * FROM nt:unstructured WHERE contains(., 'fox') " + "AND jcr:path LIKE
'" + testRoot + "/foo2'";
>       Query q = superuser.getWorkspace().getQueryManager().createQuery(sql, Query.SQL);
>       QueryResult result = q.execute();
>       checkResult(result, 0);
>       sql = "SELECT * FROM nt:unstructured WHERE contains(., 'fox') ";
>       q = superuser.getWorkspace().getQueryManager().createQuery(sql, Query.SQL);
>       result = q.execute();
>       checkResult(result, 1);
>       sql = "SELECT * FROM nt:unstructured WHERE jcr:path LIKE '" + testRoot + "/foo2'";
>       q = superuser.getWorkspace().getQueryManager().createQuery(sql, Query.SQL);
>       result = q.execute();
>       checkResult(result, 1);
>       sql = "SELECT * FROM nt:unstructured WHERE contains(., 'fox') " + "OR jcr:path
LIKE '" + testRoot + "/foo2'";
>       q = superuser.getWorkspace().getQueryManager().createQuery(sql, Query.SQL);
>       result = q.execute();
>       checkResult(result, 2);
>    }

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