slices: can not handle multiple projections in one query ( select count(*),
max(fieldA) .......)
------------------------------------------------------------------------------------------------
Key: OPENJPA-799
URL: https://issues.apache.org/jira/browse/OPENJPA-799
Project: OpenJPA
Issue Type: Bug
Components: kernel
Affects Versions: 2.0.0
Reporter: Fernando
Priority: Critical
I got this exception while running my program, and eventually I figured out
that the existing UniqueResultObjectProvider that was doing the aggregation
would loop through the result sets, but would do it one per column.. (twice in
my case), but it would not reset the resultsets after each loop...
I will look at just writing it from scratch (calling it
AggregatingResultObjectProvider, to be closer to what it actually does ). I'll
submit a patch soon.
<openjpa-2.0.0-SNAPSHOT-r422266:721073M nonfatal user error>
org.apache.openjpa.persistence.ArgumentException: Failed to execute query
"select count( this ), max( this.createTime ) from
com.protrade.fandom.data.entities.CheerStatus this where this.teamFan = :p0
AND this.createTime > :p1 AND this.createTime <= :p2 AND this.points > 0".
Check the query syntax for correctness. See nested exception for details.
at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:857)
at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:779)
at
org.apache.openjpa.kernel.DelegatingQuery.execute(DelegatingQuery.java:525)
at org.apache.openjpa.persistence.QueryImpl.execute(QueryImpl.java:257)
at
org.apache.openjpa.persistence.QueryImpl.getSingleResult(QueryImpl.java:452)
at com.protrade.common.persistence.JPAUtil.execute(JPAUtil.java:181)
at
com.protrade.common.persistence.JPAUtil.executeUnique(JPAUtil.java:162)
at
com.protrade.common.persistence.JPADQuery.uniqueResult(JPADQuery.java:32)
at
com.protrade.common.persistence.BaseRootDAOBase.runUniqueQueryNCS(BaseRootDAOBase.java:290)
at
com.protrade.common.persistence.BaseDAOBase.runUniqueQueryNCS(BaseDAOBase.java:132)
at
com.protrade.fandom.data.FandomCoreDAO.getCheerStatusCountLastDate(FandomCoreDAO.java:567)
at
com.protrade.fandom.data.FandomCoreDAO.getTeamFanBasePointsCount(FandomCoreDAO.java:532)
at
com.protrade.fanwars.base.services.FanwarsAppEventHandlerWorker.doRefreshTeamFanBasePoints(FanwarsAppEventHandlerWorker.java:794)
at
com.protrade.fanwars.base.services.FanwarsAppEventHandler$11.run2(FanwarsAppEventHandler.java:270)
at
com.protrade.fanwars.base.services.FanwarsAppEventHandler$FanwarsWorkerRunnable.run(FanwarsAppEventHandler.java:441)
at
com.protrade.common.spring.OpenEMFilter$BindThreadRunnable.run(OpenEMFilter.java:129)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:417)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:269)
at java.util.concurrent.FutureTask.run(FutureTask.java:123)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:65)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:168)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
at java.lang.Thread.run(Thread.java:595)
Caused by: java.sql.SQLException: After end of result set
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1055)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:926)
at com.mysql.jdbc.ResultSetImpl.checkRowPos(ResultSetImpl.java:815)
at com.mysql.jdbc.ResultSetImpl.getObject(ResultSetImpl.java:4725)
at
org.apache.openjpa.lib.jdbc.DelegatingResultSet.getObject(DelegatingResultSet.java:266)
at
org.apache.openjpa.jdbc.sql.DBDictionary.getObject(DBDictionary.java:756)
at
org.apache.openjpa.jdbc.sql.ResultSetResult.getObjectInternal(ResultSetResult.java:445)
at
org.apache.openjpa.jdbc.sql.AbstractResult.getObject(AbstractResult.java:689)
at org.apache.openjpa.jdbc.kernel.exps.UnaryOp.load(UnaryOp.java:116)
at
org.apache.openjpa.jdbc.kernel.ProjectionResultObjectProvider.getResultObject(ProjectionResultObjectProvider.java:78)
at
org.apache.openjpa.slice.jdbc.UniqueResultObjectProvider.next(UniqueResultObjectProvider.java:92)
at org.apache.openjpa.kernel.QueryImpl.singleResult(QueryImpl.java:1292)
at org.apache.openjpa.kernel.QueryImpl.toResult(QueryImpl.java:1226)
at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:995)
at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:848)
... 23 more
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