Github user jihoonson commented on the pull request:
https://github.com/apache/tajo/pull/503#issuecomment-100163043
It seems that some cases are missed.
Here is a failure example.
```
default> create table test1 (col1 char);
OK
default> insert into test1 select 'a';
(1 rows, 0.23 sec, 319 B inserted)
default> select * from test1;
col1
-------------------------------
ERROR: java.lang.ArrayIndexOutOfBoundsException
java.sql.SQLException: java.lang.ArrayIndexOutOfBoundsException
at
org.apache.tajo.jdbc.TajoResultSetBase.next(TajoResultSetBase.java:786)
at
org.apache.tajo.cli.tsql.DefaultTajoCliOutputFormatter.printResult(DefaultTajoCliOutputFormatter.java:105)
at
org.apache.tajo.cli.tsql.TajoCli.localQueryCompleted(TajoCli.java:558)
at org.apache.tajo.cli.tsql.TajoCli.executeQuery(TajoCli.java:532)
at
org.apache.tajo.cli.tsql.TajoCli.executeParsedResults(TajoCli.java:447)
at org.apache.tajo.cli.tsql.TajoCli.runShell(TajoCli.java:419)
at org.apache.tajo.cli.tsql.TajoCli.main(TajoCli.java:692)
Caused by: java.io.IOException: java.lang.ArrayIndexOutOfBoundsException
at org.apache.tajo.jdbc.FetchResultSet.nextTuple(FetchResultSet.java:87)
at
org.apache.tajo.jdbc.TajoResultSetBase.next(TajoResultSetBase.java:780)
... 6 more
Caused by: com.google.protobuf.ServiceException:
java.lang.ArrayIndexOutOfBoundsException
at
org.apache.tajo.client.QueryClientImpl.fetchNextQueryResult(QueryClientImpl.java:370)
at
org.apache.tajo.client.TajoClientImpl.fetchNextQueryResult(TajoClientImpl.java:134)
at org.apache.tajo.jdbc.FetchResultSet.nextTuple(FetchResultSet.java:69)
... 7 more
```
This is the master log.
```
2015-05-08 18:02:04,216 ERROR
org.apache.tajo.master.TajoMasterClientService:
java.lang.ArrayIndexOutOfBoundsException
at java.lang.System.arraycopy(Native Method)
at
org.apache.tajo.storage.RowStoreUtil$RowStoreEncoder.toBytes(RowStoreUtil.java:203)
at
org.apache.tajo.master.exec.NonForwardQueryResultFileScanner.getNextRows(NonForwardQueryResultFileScanner.java:181)
at
org.apache.tajo.master.TajoMasterClientService$TajoMasterClientProtocolServiceHandler.getQueryResultData(TajoMasterClientService.java:551)
at
org.apache.tajo.ipc.TajoMasterClientProtocol$TajoMasterClientProtocolService$2.callBlockingMethod(TajoMasterClientProtocol.java:549)
at
org.apache.tajo.rpc.BlockingRpcServer$ServerHandler.channelRead0(BlockingRpcServer.java:100)
at
org.apache.tajo.rpc.BlockingRpcServer$ServerHandler.channelRead0(BlockingRpcServer.java:61)
at
io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)
at
io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)
at
io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:182)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)
at
io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)
at
org.apache.tajo.rpc.MonitorServerHandler.channelRead(MonitorServerHandler.java:70)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)
at
io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:846)
at
io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:130)
at
io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511)
at
io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
at
io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
at
io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
at java.lang.Thread.run(Thread.java:745)
```
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