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https://issues.apache.org/jira/browse/OPENJPA-579?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sandeep Shrivastava updated OPENJPA-579:
----------------------------------------
Attachment: openjpa-1.1.0-SNAPSHOT-r422266-650703.patch
Reapply the patch to the MaxEmbeddedLobFieldStrategy class.
> JDO Projection query with for a complex object with a clob field fails
> ----------------------------------------------------------------------
>
> Key: OPENJPA-579
> URL: https://issues.apache.org/jira/browse/OPENJPA-579
> Project: OpenJPA
> Issue Type: Bug
> Components: jdbc
> Affects Versions: 1.1.0
> Environment: OpenJPA 1.1.0-SNAPSHOT
> version id: openjpa-1.1.0-SNAPSHOT-r422266:647033
> Apache svn revision: 422266:647033
> os.name: Windows XP
> os.version: 5.1
> os.arch: x86
> java.version: 1.6.0_05
> java.vendor: BEA Systems, Inc.
> Reporter: Sandeep Shrivastava
> Fix For: 1.1.0
>
> Attachments: openjpa-1.1.0-SNAPSHOT-r422266-647033.patch,
> openjpa-1.1.0-SNAPSHOT-r422266-650703.patch
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> The following test case calls setResult on the Query interface to retrieve
> only the QueryTest2 var with a ordering clause. The generated SQL has an
> inner select distinct from which the final results are selected by the outer
> statement.
> PersistenceManager pm = getPM();
> Query q = newQuery(pm, QueryTest4.class);
> q.declareVariables("QueryTest2 var");
> q.setResult("oneToOne2, var");
> q.setOrdering("var.num ascending");
> q.setFilter("manyToMany3.contains (var)");
> Here is the SQL generated to retrieve the result.
> SELECT s.t3_ID, s.t3_TYP, s.t3_VERSN, s.t3_BOOL, s.t3_CHARACTER0,
> s.t3_CLOBFIELD, s.t3_DATE0, s.t3_DECIMAL0, s.t3_NUM, s.t3_STRING FROM (SELECT
> DISTINCT t0.ID AS t0_ID, t3.ID AS t3_ID, t3.TYP AS t3_TYP, t3.VERSN AS
> t3_VERSN, t3.BOOL AS t3_BOOL, t3.CHARACTER0 AS t3_CHARACTER0, t3.DATE0 AS
> t3_DATE0, t3.DECIMAL0 AS t3_DECIMAL0, t3.NUM AS t3_NUM, t3.STRING AS
> t3_STRING, t3.ONETOONE AS t3_ONETOONE, t3.NUM2 AS t3_NUM2 FROM querytest4 t0
> INNER JOIN query_manytomany3 t1 ON t0.ID = t1.ID LEFT OUTER JOIN querytest1
> t3 ON t0.ONETOONE2 = t3.ID INNER JOIN querytest1 t2 ON t1.ELEMENT = t2.ID) s
> ORDER BY s.t2_NUM ASC
> The generated field in the outer statement s.t3_CLOBFIELD is not present in
> the distinct clause and leads to the failure exception below.
> 1)
> testMultipleSameTypedObjectProjection(kodo.jdbc.query.TestJDBCProjections)<openjpa-1.1.0-SNAPSHOT-r422266:647033
> nonfatal store error> kodo.jdo.DataStoreException: Unknown column
> 's.t3_CLOBFIELD' in 'field list'
> at
> org.apache.openjpa.jdbc.sql.SQLExceptions.narrow(SQLExceptions.java:146)
> at
> org.apache.openjpa.jdbc.sql.DBDictionary.newStoreException(DBDictionary.java:4107)
> at
> org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:102)
> at
> org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:88)
> at
> org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:64)
> at
> org.apache.openjpa.jdbc.kernel.SelectResultObjectProvider.handleCheckedException(SelectResultObjectProvider.java:155)
> at
> org.apache.openjpa.lib.rop.EagerResultList.<init>(EagerResultList.java:40)
> at org.apache.openjpa.kernel.QueryImpl.toResult(QueryImpl.java:1222)
> at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:989)
> at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:804)
> at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:774)
> at kodo.kernel.KodoQuery.execute(KodoQuery.java:43)
> at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:770)
> at kodo.kernel.KodoQuery.execute(KodoQuery.java:39)
> at
> org.apache.openjpa.kernel.DelegatingQuery.execute(DelegatingQuery.java:517)
> at kodo.jdo.QueryImpl.execute(QueryImpl.java:98)
> at
> kodo.query.ProjectionsTestCase.testMultipleSameTypedObjectProjection(ProjectionsTestCase.java:439)
> at
> kodo.jdbc.query.TestJDBCProjections.testMultipleSameTypedObjectProjection(TestJDBCProjections.java:137)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> NestedThrowablesStackTrace:
> com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: Unknown column
> 's.t3_CLOBFIELD' in 'field list'
> at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:930)
> at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2864)
> at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1567)
> at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1659)
> at com.mysql.jdbc.Connection.execSQL(Connection.java:3118)
> at
> com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1143)
> at
> com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1256)
> at
> org.apache.openjpa.lib.jdbc.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:264)
> at
> com.solarmetric.jdbc.PoolConnection$PoolPreparedStatement.executeQuery(PoolConnection.java:260)
> at
> org.apache.openjpa.lib.jdbc.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:262)
> at
> org.apache.openjpa.lib.jdbc.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:262)
> at
> org.apache.openjpa.lib.jdbc.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:262)
> at
> org.apache.openjpa.jdbc.kernel.JDBCStoreManager$CancelPreparedStatement.executeQuery(JDBCStoreManager.java:1407)
> at
> org.apache.openjpa.lib.jdbc.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:252)
> at
> org.apache.openjpa.jdbc.sql.SelectImpl.executeQuery(SelectImpl.java:449)
> at org.apache.openjpa.jdbc.sql.SelectImpl.execute(SelectImpl.java:360)
> at kodo.jdbc.sql.KodoSelectImpl.execute(KodoSelectImpl.java:28)
> at org.apache.openjpa.jdbc.sql.SelectImpl.execute(SelectImpl.java:319)
> at
> org.apache.openjpa.jdbc.kernel.SelectResultObjectProvider.open(SelectResultObjectProvider.java:94)
> at
> org.apache.openjpa.lib.rop.EagerResultList.<init>(EagerResultList.java:34)
> at org.apache.openjpa.kernel.QueryImpl.toResult(QueryImpl.java:1222)
> at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:989)
> at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:804)
> at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:774)
> at kodo.kernel.KodoQuery.execute(KodoQuery.java:43)
> at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:770)
> at kodo.kernel.KodoQuery.execute(KodoQuery.java:39)
> at
> org.apache.openjpa.kernel.DelegatingQuery.execute(DelegatingQuery.java:517)
> at kodo.jdo.QueryImpl.execute(QueryImpl.java:98)
> at
> kodo.query.ProjectionsTestCase.testMultipleSameTypedObjectProjection(ProjectionsTestCase.java:439)
> at
> kodo.jdbc.query.TestJDBCProjections.testMultipleSameTypedObjectProjection(TestJDBCProjections.java:137)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>
> The fix for the above is in the HandlerFieldStrategy class. In the select
> distinct constructor the clobfield is being skipped but for the outer select
> it was getting included so adding condition to honor the eager mode fixes the
> problem. I will attach the patch shortly.
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