The query queries a no-sql database....so I don’t think there is type 
information. However, Querying without the cast returns an empty result set, 
but I can see matching rows when I query the two views independently 

Best regards,
Peter Edike

Senior Software Engineer
Interswitch

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This message has been marked as CONFIDENTIAL on Monday, May 28, 2018 @ 4:43:53 
PM

-----Original Message-----
From: Charles Givre <[email protected]> 
Sent: Monday, May 28, 2018 4:40 PM
To: [email protected]
Subject: Re: Error Joining Two Tables In Apache Drill

Hi Peter, 
Out of curiosity, what is the native data type of the product_code field?  Is 
it really necessary to cast it to a character in the join statement?  You might 
want to try the join w/o the data type conversion. 


> On May 28, 2018, at 11:33, Peter Edike <[email protected]> 
> wrote:
> 
> Hallos everyone
>  
> I have the following query that attempts to join the result set of two views 
> on a common column
>  
> select *
> from dfs.vtucare.vw_tbl_transactions as table1
> join dfs.vtucare.vw_tbl_products as table2
> ON TO_CHAR(table1.product_code, '######') = TO_CHAR(table2.product_code, 
> '#####') limit 1
>  
>  
> On Running the Query, I get the following Error
>  
> Error in expression at index -1. Error: Missing function implementation: 
> [castTINYINT(VARCHAR-OPTIONAL)]. Full expression: --UNKNOWN EXPRESSION--..
> Fragment 2:0
> [Error Id: 6c84fc61-c9d7-4d55-9ebd-bbbf7be84865 on 
> BGDTEST2.INTERSWITCH.COM:31010 <http://bgdtest2.interswitch.com:31010/>].
> at 
> com.mapr.drill.drill.dataengine.DRQryResultListener.checkAndThrowException(Unknown
>  Source)
> at com.mapr.drill.drill.dataengine.DRQryResultListener.getNextBatch(Unknown 
> Source)
> at 
> com.mapr.drill.drill.dataengine.DRJDBCResultSet.doLoadRecordBatchData(Unknown 
> Source)
> at com.mapr.drill.drill.dataengine.DRJDBCResultSet.doMoveToNextRow(Unknown 
> Source)
> at com.mapr.drill.drill.dataengine.DRJDBCQueryExecutor.execute(Unknown Source)
> at com.mapr.drill.jdbc.common.SStatement.executeNoParams(Unknown Source)
> at com.mapr.drill.jdbc.common.SStatement.execute(Unknown Source)
> at 
> org.apache.commons.dbcp2.DelegatingStatement.execute(DelegatingStatement.java:291)
> at 
> org.apache.commons.dbcp2.DelegatingStatement.execute(DelegatingStatement.java:291)
> at 
> org.apache.zeppelin.jdbc.JDBCInterpreter.executeSql(JDBCInterpreter.java:581)
> at 
> org.apache.zeppelin.jdbc.JDBCInterpreter.interpret(JDBCInterpreter.java:692)
> at 
> org.apache.zeppelin.interpreter.LazyOpenInterpreter.interpret(LazyOpenInterpreter.java:97)
> at 
> org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer$InterpretJob.jobRun(RemoteInterpreterServer.java:498)
> at org.apache.zeppelin.scheduler.Job.run(Job.java:175)
> at 
> org.apache.zeppelin.scheduler.ParallelScheduler$JobRunner.run(ParallelScheduler.java:162)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at 
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
> at 
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
> at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> Caused by: com.mapr.drill.support.exceptions.GeneralException: 
> [MapR][DrillJDBCDriver](500165) Query execution error. Details: SYSTEM ERROR: 
> SchemaChangeException: Failure while trying to materialize incoming schema. 
> Errors:
> Error in expression at index -1. Error: Missing function implementation: 
> [castTINYINT(VARCHAR-OPTIONAL)]. Full expression: --UNKNOWN EXPRESSION--..
> Fragment 2:0
> [Error Id: 6c84fc61-c9d7-4d55-9ebd-bbbf7be84865 on 
> BGDTEST2.INTERSWITCH.COM:31010 <http://bgdtest2.interswitch.com:31010/>].
> ... 21 more
>  
>  
>  
> Please what am I doing wrong
>  
> Kind Regards
>  
> Peter Edike
> Senior Software Engineer
> Research and Development 
> Group Shared Technology
> 
> Office  NO:  
> Mobile NO: 
> Email: [email protected] 
> <mailto:[email protected]>
> Interswitch Limited
> 1648C Oko-Awo Street, Victoria Island Lagos
> Customer Contact Centre 0700-9065000
> ü http://www.interswitchgroup.com <http://www.interswitchgroup.com/>
>  <https://www.quickteller.com/delight/>
> This e-mail and all  attachments transmitted with it remain the property of 
> Interswitch Limited , the information contained herein  are private  
> confidential and intended solely for the use of the addressee. If you have 
> received this e-mail in error, kindly notify the sender. If you are not the 
> addressee, you should not disseminate, distribute or copy this e-mail. Kindly 
> notify Interswitch immediately by email if you have received this email in 
> error and delete this email and any attachment from your system  Emails 
> cannot be guaranteed to be secure or error free as the message and any 
> attachments could be intercepted, corrupted, lost, delayed, incomplete or 
> amended. the contents of this email or its attachments have been scanned for 
> all viruses and all reasonable measures have been taken to ensure that no 
> viruses are present. Interswitch Limited and its subsidiaries do not accept 
> liability for damage caused by this email or any attachments.This message has 
> been marked as CONFIDENTIAL on Monday, May 28, 2018 @ 4:33:42 PM
> 

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