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From "Dmitry Pavlov (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (OPENJPA-2147) Inability to use Prepared SQL Query Cache and 'Identity Class' @IdClass
Date Tue, 28 Feb 2012 04:33:48 GMT
Inability to use Prepared SQL Query Cache and 'Identity Class' @IdClass
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                 Key: OPENJPA-2147
                 URL: https://issues.apache.org/jira/browse/OPENJPA-2147
             Project: OpenJPA
          Issue Type: Bug
          Components: jdbc
    Affects Versions: 2.2.0, 2.1.1, 2.1.0, 2.0.1, 2.0.0
            Reporter: Dmitry Pavlov


There is an entity Node2 which is using an identity class.  
It is introduced in an unit test attached to related issue OPENJPA-2144.

I have made to sequential queries to Node2 at the same transaction, but different query objects
in order to use prepared SQL query Cache.

JPQL: SELECT p FROM Node2 p WHERE p.parent = :parent

Not cached query works fine and returns not empty list:

302884  test  TRACE  [main] openjpa.Runtime - Query "SELECT p FROM Node2 p WHERE p.parent
= :parent" is cached."	
302884  test  TRACE  [main] openjpa.Query - Executing query: [SELECT p FROM Node2 p WHERE
p.parent = :parent] with parameters: {parent=1351::1::2}
302962  test  TRACE  [main] openjpa.jdbc.SQL - <t 5142872, conn 30621423> executing
prepstmnt 21961831 SELECT t0.district, t0.id, t0.region, t0.version, t0.data, t0.PARENT_ID
FROM NODE2 t0 WHERE (t0.PARENT_ID = ? AND t0.region = ? AND t0.district = ?) [params=(long)
1351, (int) 1, (int) 2]

Sequential cached query returns empty list:

346242  test  TRACE  [main] openjpa.Query - Executing query: [SELECT p FROM Node2 p WHERE
p.parent = :parent] with parameters: {0=1, 1=1, 2=2}
346242  test  TRACE  [main] openjpa.jdbc.SQL - <t 5142872, conn 30621423> executing
prepstmnt 13122813 SELECT t0.district, t0.id, t0.region, t0.version, t0.data, t0.PARENT_ID
FROM NODE2 t0 WHERE (t0.PARENT_ID = ? AND t0.region = ? AND t0.district = ?) [params=(int)
1, (int) 1, (int) 2]

You can see that wrong paraments were passed into cached generated raw SQL in the second query!

That is the problem, we have wrong query result.


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