JPOX generates wrong SQL statements navigating relationships in JDO queries
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Key: JDO-169
URL: http://issues.apache.org/jira/browse/JDO-169
Project: JDO
Type: Improvement
Components: tck20
Reporter: Michael Watzek
Assigned to: Erik Bengtson
This bug shows up in (at least) two test cases:
NavigationThroughANullValuedField and
NavigationThroughReferencesUsesDotOperator.
Both test cases run the following JDO query: SELECT FROM Employee WHERE
medicalInsurance.carrier == \"Carrier1\".
JPOX generates the following SQL:
SELECT
THIS.DISCRIMINATOR,THIS.BIRTHDATE,THIS.FIRSTNAME,THIS.LASTNAME,THIS.PERSONID,THIS.HIREDATE,THIS.WEEKLYHOURS
FROM applicationidentity0.PERSONS THIS LEFT OUTER JOIN
applicationidentity0.INSURANCEPLANS RELATED14 ON RELATED14.EMPLOYEE =
THIS.PERSONID WHERE (THIS.DISCRIMINATOR =
'org.apache.jdo.tck.pc.company.Employee' OR THIS.DISCRIMINATOR =
'org.apache.jdo.tck.pc.company.PartTimeEmployee' OR THIS.DISCRIMINATOR =
'org.apache.jdo.tck.pc.company.FullTimeEmployee') AND RELATED14.CARRIER =
'Carrier1'
The WHERE clause of this SQL statement misses a discriminator comparison for
the navigated relationship:
AND RELATED14.DISCRIMINATOR = 'org.apache.jdo.tck.pc.company.MedicalInsurance'
Once, the patch of JDO-168 has been checked in the test cases mentioned above
fail due to this reason.
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