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Posted to dev@openjpa.apache.org by "Vermeulen (JIRA)" <ji...@apache.org> on 2012/08/16 11:43:37 UTC
[jira] [Created] (OPENJPA-2251) EXISTS with subquery from
superclass generates SQL with syntax error
Vermeulen created OPENJPA-2251:
----------------------------------
Summary: EXISTS with subquery from superclass generates SQL with syntax error
Key: OPENJPA-2251
URL: https://issues.apache.org/jira/browse/OPENJPA-2251
Project: OpenJPA
Issue Type: Bug
Affects Versions: 2.2.0
Reporter: Vermeulen
I have an abstract entity Booking with @Inheritance(strategy = InheritanceType.TABLE_PER_CLASS).
It has a ManyToOne relation with Event.
The following JPQL query generates SQL with a syntax error:
SELECT z FROM Event z WHERE EXISTS (
SELECT booking.id FROM Booking booking
WHERE booking.event = z AND booking.remarks = :REMARKS
)
org.apache.openjpa.lib.jdbc.ReportingSQLException: Incorrect syntax near the keyword 'FROM'. {prepstmnt 17234903
SELECT t0.id, ...(many more columns)..., t0.USERCREATED_ID
FROM booking_Event t0 LEFT OUTER JOIN booking_OccasionType t1 ON t0.OCCASIONTYPE_ID = t1.id WHERE (EXISTS (SELECT FROM WHERE ( AND )))} [code=156, state=S0001]
When I replace Booking with the name of a concrete subclass the query executes fine.
When I execute only the subquery as a normal query it executes fine:
SELECT booking.id FROM Booking booking
WHERE booking.event.id = :eventId AND booking.remarks = :REMARKS
When I replace the parameter :REMARKS with a Collection-valued parameter like so "booking.remarks IN :REMARKS", I get a weird
ClassCastException:
Caused by: java.lang.ClassCastException: java.lang.String cannot be cast to [Ljava.lang.Object;
at org.apache.openjpa.jdbc.kernel.exps.InExpression.orContains(InExpression.java:178)
at org.apache.openjpa.jdbc.kernel.exps.InExpression.appendTo(InExpression.java:122),
....
Again when I replace Booking with the name of a concrete subclass the query executes fine.
I think this may be related to OPENJPA-681 and OPENJPA-658 which have already been resolved, but perhaps the problem still exists when querying on a superclass.
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[jira] [Commented] (OPENJPA-2251) EXISTS with subquery from
superclass generates SQL with syntax error
Posted by "Vermeulen (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/OPENJPA-2251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13435859#comment-13435859 ]
Vermeulen commented on OPENJPA-2251:
------------------------------------
I just noticed that OPENJPA-658 is not resolved yet. Perhaps this is another manifestation of that issue.
> EXISTS with subquery from superclass generates SQL with syntax error
> --------------------------------------------------------------------
>
> Key: OPENJPA-2251
> URL: https://issues.apache.org/jira/browse/OPENJPA-2251
> Project: OpenJPA
> Issue Type: Bug
> Affects Versions: 2.2.0
> Reporter: Vermeulen
>
> I have an abstract entity Booking with @Inheritance(strategy = InheritanceType.TABLE_PER_CLASS).
> It has a ManyToOne relation with Event.
> The following JPQL query generates SQL with a syntax error:
> SELECT z FROM Event z WHERE EXISTS (
> SELECT booking.id FROM Booking booking
> WHERE booking.event = z AND booking.remarks = :REMARKS
> )
> org.apache.openjpa.lib.jdbc.ReportingSQLException: Incorrect syntax near the keyword 'FROM'. {prepstmnt 17234903
> SELECT t0.id, ...(many more columns)..., t0.USERCREATED_ID
> FROM booking_Event t0 LEFT OUTER JOIN booking_OccasionType t1 ON t0.OCCASIONTYPE_ID = t1.id WHERE (EXISTS (SELECT FROM WHERE ( AND )))} [code=156, state=S0001]
> When I replace Booking with the name of a concrete subclass the query executes fine.
> When I execute only the subquery as a normal query it executes fine:
> SELECT booking.id FROM Booking booking
> WHERE booking.event.id = :eventId AND booking.remarks = :REMARKS
>
> When I replace the parameter :REMARKS with a Collection-valued parameter like so "booking.remarks IN :REMARKS", I get a weird
> ClassCastException:
> Caused by: java.lang.ClassCastException: java.lang.String cannot be cast to [Ljava.lang.Object;
> at org.apache.openjpa.jdbc.kernel.exps.InExpression.orContains(InExpression.java:178)
> at org.apache.openjpa.jdbc.kernel.exps.InExpression.appendTo(InExpression.java:122),
> ....
> Again when I replace Booking with the name of a concrete subclass the query executes fine.
> I think this may be related to OPENJPA-681 and OPENJPA-658 which have already been resolved, but perhaps the problem still exists when querying on a superclass.
--
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