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Posted to dev@openjpa.apache.org by "Milosz Tylenda (JIRA)" <ji...@apache.org> on 2010/01/23 16:28:17 UTC
[jira] Assigned: (OPENJPA-1367) H2 Database Engine does support
cross join
[ https://issues.apache.org/jira/browse/OPENJPA-1367?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Milosz Tylenda reassigned OPENJPA-1367:
---------------------------------------
Assignee: Milosz Tylenda
> H2 Database Engine does support cross join
> ------------------------------------------
>
> Key: OPENJPA-1367
> URL: https://issues.apache.org/jira/browse/OPENJPA-1367
> Project: OpenJPA
> Issue Type: Bug
> Components: docs, jpa
> Affects Versions: 1.2.1, 2.0.0-M1
> Reporter: Thomas Mueller
> Assignee: Milosz Tylenda
> Priority: Minor
> Attachments: OPENJPA-1367.patch, openjpa-h2-test-results.txt
>
>
> The documentation says that the H2 database does not support cross joins:
> http://openjpa.apache.org/builds/1.2.1/apache-openjpa-1.2.1/docs/manual/dbsupport_h2.html
> http://openjpa.apache.org/builds/2.0.0-M3/apache-openjpa-2.0.0-M3/docs/manual/main.html
> H2 does support cross join since a long time (I don't remember what version). See: http://www.h2database.com/html/grammar.html#table_expression (CROSS). A condition is not required for cross join.
> I think the documentation should be changed, and probably the H2Dictionary should be changed as well (crossJoinClause = "CROSS JOIN"; requiresConditionForCrossJoin = false;).
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