[
https://issues.apache.org/jira/browse/OPENJPA-1819?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12916529#action_12916529
]
Fay Wang commented on OPENJPA-1819:
-----------------------------------
This apparently is not specific to Oracle. When running against DB2, the
generated SQL is:
SELECT t1.id, t1.name, SUM(t0.score) AS r3, t0.person
FROM Exam t0
LEFT OUTER JOIN Person t1 ON t0.PERSON_ID = t1.id
GROUP BY t1.id, t1.name ORDER BY t0.person ASC
and DB2 throws the following exception:
com.ibm.db2.jcc.am.ro: DB2 SQL Error: SQLCODE=-119, SQLSTATE=42803,
SQLERRMC=person, DRIVER=3.58.82
> ORDER BY will append additional column to the SELECT clause which may
> potentialy cause ORA-00979 error
> ------------------------------------------------------------------------------------------------------
>
> Key: OPENJPA-1819
> URL: https://issues.apache.org/jira/browse/OPENJPA-1819
> Project: OpenJPA
> Issue Type: Bug
> Components: sql
> Affects Versions: 2.1.0
> Environment: OpenJPA 2.1
> Oracle 9.2
> Reporter: Azuo Lee
> Priority: Critical
>
> Assuming entity Person and entity Exam has one-to-many association, the
> following JPQL statement:
> SELECT p.id r1, p.name r2, sum(e.score) r3 FROM Exam e LEFT JOIN e.person p
> GROUP BY p.id, p.name ORDER BY p.id
> will produce the following SQL, which is not executable if the underlining
> database is Oracle 9.2:
> SELECT t1.id, t1.name, SUM(t0.score) AS r3, t0.person FROM exams t0, persons
> t1 WHERE t0.person = t1.id(+) GROUP BY t1.id, t1.name ORDER BY t0.person ASC
> The additional column "t0.person" will cause error ORA-00979: not a GROUP BY
> expression.
> The correct SQL should be:
> SELECT t1.id, t1.name, SUM(t0.score) AS r3 FROM exams t0, persons t1 WHERE
> t0.person = t1.id(+) GROUP BY t1.id, t1.name ORDER BY t1.id ASC
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
