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https://issues.apache.org/jira/browse/OPENJPA-2289?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Albert Lee updated OPENJPA-2289:
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Attachment: OPENJPA-2289.20x.patch
> Additional SQL alias generated for query with subquery causes incorrect # of
> rows returned - Oracle only
> --------------------------------------------------------------------------------------------------------
>
> Key: OPENJPA-2289
> URL: https://issues.apache.org/jira/browse/OPENJPA-2289
> Project: OpenJPA
> Issue Type: Bug
> Components: sql
> Affects Versions: 2.0.1, 2.1.1, 2.2.0, 2.3.0
> Reporter: Albert Lee
> Assignee: Albert Lee
> Attachments: OPENJPA-2289.20x.patch
>
>
> .createQuery("SELECT e FROM MaxQueryEntity e,
> MaxQueryMapEntity map "
> + "WHERE map.selectCriteria = 'B3' AND map.refEntity = e "
> + " AND e.revision = ( SELECT MAX(e_.revision)"
> + " FROM MaxQueryEntity e_"
> + " WHERE e_.domainId = e.domainId )"
> + " AND map.revision = ( SELECT MAX(map_.revision)"
> + " FROM MaxQueryMapEntity map_"
> + " WHERE map_.refEntity =
> map.refEntity )");
> On Oracle we generate SQL like this on 2.0.x+:
> SELECT t1.id, t1.domainId, t1.revision FROM OPENJPA_MAXQUERY_MAPENTITY t0,
> OPENJPA_MAXQUERY_ENTITY t1, OPENJPA_MAXQUERY_MAPENTITY t4 WHERE
> (t0.selectCriteria = ? AND t0.refEntity = t1.id AND t1.revision = (SELECT
> MAX(t2.revision) FROM OPENJPA_MAXQUERY_ENTITY t2 WHERE (t2.domainId =
> t1.domainId)) AND t0.revision = (SELECT MAX(t3.revision) FROM
> OPENJPA_MAXQUERY_MAPENTITY t3 WHERE (t3.refEntity = t4.refEntity)))
> [params=(String) B3]
> The additional alias "OPENJPA_MAXQUERY_MAPENTITY t4" caused more unexpected
> rows to return.
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