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https://issues.apache.org/jira/browse/DRILL-2008?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jinfeng Ni updated DRILL-2008:
------------------------------
Assignee: Sean Hsuan-Yi Chu (was: Jinfeng Ni)
> select a || b from ... fails while select cast(a as varchar) || cast(b as
> varchar) from ...
> -------------------------------------------------------------------------------------------
>
> Key: DRILL-2008
> URL: https://issues.apache.org/jira/browse/DRILL-2008
> Project: Apache Drill
> Issue Type: Bug
> Components: Query Planning & Optimization
> Reporter: Sean Hsuan-Yi Chu
> Assignee: Sean Hsuan-Yi Chu
> Priority: Critical
>
> The first query would fail at planning by optiq/calcite.
> For example,
> select n_name || n_name from cp.`tpch/nation.parquet`;
> org.apache.drill.exec.rpc.RpcException: Query failed: Unexpected exception
> during fragment initialization: null
> at
> org.apache.drill.exec.rpc.user.QueryResultHandler.batchArrived(QueryResultHandler.java:79)
> at
> org.apache.drill.exec.rpc.user.UserClient.handleReponse(UserClient.java:93)
> at
> org.apache.drill.exec.rpc.BasicClientWithConnection.handle(BasicClientWithConnection.java:52)
> at
> org.apache.drill.exec.rpc.BasicClientWithConnection.handle(BasicClientWithConnection.java:34)
> at org.apache.drill.exec.rpc.RpcBus.handle(RpcBus.java:58)
> at
> org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:194)
> at
> org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:173)
> at
> io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:89)
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
> at
> io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
> at
> io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
> at
> io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
> at
> io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:161)
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
> at
> io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
> at
> io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
> at
> io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
> at
> io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:787)
> 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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