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From ms <ms...@gmx.de>
Subject Left outer joins in SQL2
Date Tue, 29 Mar 2011 13:30:26 GMT
I think that left outer joins in SQL2 are not working korrect.
This is since 2.1.2.

Example:

def n1 = root.addNode("node1", "sling:SamplePage");
n1.setProperty("n1prop1", "page1");
def n2 = n1.addNode("node2", "sling:SampleContent");
n2.setProperty("n2prop1", "content1");

Execute this Query:
Select * from [sling:SamplePage] as page left outer join 
[sling:SampleContent] as content on ISDESCENDANTNODE(content,page) where 
page.n1prop1 = 'page1' and content.n2prop1 = 'content1';
The resultset have 1 row with 2 Nodes. This OK.

Then execute this:
Select * from [sling:SamplePage] as page left outer join 
[sling:SampleContent] as content on ISDESCENDANTNODE(content,page) where 
page.n1prop1 = 'page1' and content.n2prop1 = 'XXXXX';

The resultset has 1 row with 1 node.
This wrong. The result should be 0 rows.

Old Versions, prior 2.1.2 have also 0 rows as result.

Also, if nodes "n2" not exists, jackrabbit reports 1 row as result.

Manfred Sattler

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