[teiid-issues] [JBoss JIRA] (TEIID-2775) HIVE2: cannot run ORDER BY SQL without LIMIT
Steven Hawkins (JIRA)
issues at jboss.org
Mon Dec 16 10:30:33 EST 2013
[ https://issues.jboss.org/browse/TEIID-2775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12931868#comment-12931868 ]
Steven Hawkins commented on TEIID-2775:
---------------------------------------
Seems like it's viable to workaround using built-in functionality:
http://www.cloudera.com/content/cloudera-content/cloudera-docs/Impala/latest/Installing-and-Using-Impala/ciiu_langref_sql.html?scroll=limit_unique_1
You can set an impala wide default, or set the connection pool to use a new connection sql setting to issue a SET statement to set a default value (and control the exception on limit behavior).
Can this be resolved as either a pool or impala configuration issue?
> HIVE2: cannot run ORDER BY SQL without LIMIT
> ---------------------------------------------
>
> Key: TEIID-2775
> URL: https://issues.jboss.org/browse/TEIID-2775
> Project: Teiid
> Issue Type: Bug
> Components: Query Engine
> Affects Versions: 8.6
> Environment: Teiid with HIVE2 Impala
> Reporter: Ivan Chan
> Assignee: Steven Hawkins
> Labels: teiid
>
> Cannot run SQL with order by, but without limit clause.
> If I run a sql like the following with HIVE2/ IMPALA:
> select "account_type"
> from "hive2DS"."accounts"
> group by "account_type"
> order by "account_type"
> Teiid would convert it to:
> SELECT g_0.account_type AS c_0 FROM accounts g_0 GROUP BY g_0.account_type ORDER BY c_0
> And I will get the following exception:
> [3:51:04 PM] Natalia: org.teiid.jdbc.TeiidSQLException: Error trying to obtain metadata information for the tables that match %: TEIID30489 Unable to load metadata for VDB name
> Caused by: org.teiid.translator.jdbc.JDBCExecutionException: 0 TEIID11008:TEIID11004 Error executing statement(s): [Prepared Values: [] SQL: SELECT g_0.account_type AS c_0 FROM accounts g_0 GROUP BY g_0.account_type ORDER BY c_0]
> at org.teiid.translator.jdbc.JDBCQueryExecution.execute(JDBCQueryExecution.java:131)
> at org.teiid.dqp.internal.datamgr.ConnectorWorkItem.execute(ConnectorWorkItem.java:317)
> at org.teiid.dqp.internal.process.DataTierTupleSource.getResults(DataTierTupleSource.java:298)
> at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:110)
> at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:107)
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
> at java.util.concurrent.FutureTask.run(FutureTask.java:166)
> at org.teiid.dqp.internal.process.FutureWork.run(FutureWork.java:58)
> at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:273)
> at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:119)
> at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:214)
> ... 3 more
> Caused by: java.sql.SQLException: NotImplementedException: ORDER BY without LIMIT currently not supported
> at org.apache.hive.jdbc.Utils.verifySuccess(Utils.java:165)
> at org.apache.hive.jdbc.Utils.verifySuccessWithInfo(Utils.java:153)
> at org.apache.hive.jdbc.HiveStatement.execute(HiveStatement.java:198)
> at org.apache.hive.jdbc.HiveStatement.executeQuery(HiveStatement.java:300)
> at org.apache.hive.jdbc.HivePreparedStatement.executeQuery(HivePreparedStatement.java:106)
> at org.apache.tomcat.dbcp.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:96)
> at org.apache.tomcat.dbcp.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:96)
> at org.teiid.translator.jdbc.JDBCQueryExecution.execute(JDBCQueryExecution.java:123)
> ... 13 more
> Maybe you guys should consider to do order by in memory if LIMIT is not presented for HIVE2 IMPALA. Thanks.
> LINK:
> http://www.rittmanmead.com/2013/11/connecting-obiee-11-1-1-7-to-cloudera-impala/
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