You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@jackrabbit.apache.org by "Alex Parvulescu (JIRA)" <ji...@apache.org> on 2011/05/23 17:09:48 UTC
[jira] [Resolved] (JCR-2852) Support multi-selector OR constraints
in join queries
[ https://issues.apache.org/jira/browse/JCR-2852?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alex Parvulescu resolved JCR-2852.
----------------------------------
Resolution: Fixed
Fix Version/s: 2.2.6
Assignee: Alex Parvulescu
parent issue is resolved JCR-2933
> Support multi-selector OR constraints in join queries
> -----------------------------------------------------
>
> Key: JCR-2852
> URL: https://issues.apache.org/jira/browse/JCR-2852
> Project: Jackrabbit Content Repository
> Issue Type: Improvement
> Components: jackrabbit-core, query
> Reporter: Jukka Zitting
> Assignee: Alex Parvulescu
> Fix For: 2.2.6
>
> Attachments: JCR-2852-NPE.patch, JCR-2852-outer-join-test.patch, JCR-2852.patch
>
>
> Our current join implementation doesn't support OR constraints that refer to more than one selector. For example the following query is not possible:
> SELECT a.* FROM [my:type] AS a INNER JOIN [my:type] as b ON a.foo = b.bar WHERE a.baz = 'x' OR b.baz = 'y'
> This limitation is a result of the way the join execution splits the query into per-selector components and merges the result based on the given join condition.
> A simple but often inefficient solution would be to process such OR constraints as post-processing filters like we already do for some other more complex constraint types.
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira