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From "Rahul Challapalli (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-2027) SQL 'similar' functionality having issues with large datasets
Date Fri, 16 Jan 2015 22:48:35 GMT
Rahul Challapalli created DRILL-2027:
----------------------------------------

             Summary: SQL 'similar' functionality having issues with large datasets
                 Key: DRILL-2027
                 URL: https://issues.apache.org/jira/browse/DRILL-2027
             Project: Apache Drill
          Issue Type: Bug
          Components: SQL Parser
            Reporter: Rahul Challapalli
            Assignee: Aman Sinha


git.commit.id.abbrev=5a28066

The below query runs when the dataset has 10 (or even 1000) records. However if I just copy
over the same record set 100000 times then the below query is failing
{code}
0: jdbc:drill:schema=dfs.drillTestDir> select * from `wide-strings-large.tbl` where columns[3]
similar to '%NqP%';
Query failed: Query failed: Failure while trying to start remote fragment, Expression has
syntax error! line 1:0:no viable alternative at input 'similar' [ 48b1fa16-6f3e-4bf5-9eb7-9c4a385d09b9
on qa-node190.qa.lab:31010 ]

Error: exception while executing query: Failure while executing query. (state=,code=0)
{code}

Below are the contents of the log file :
{code}
org.apache.drill.exec.rpc.RemoteRpcException: Failure while trying to start remote fragment,
Expression has syntax error! line 1:15:no viable alternative at input 'similar' [ e4e39df0-4811-4706-a5ad-7fd93e64b72c
on qa-node190.qa.lab:31010 ]

        at org.apache.drill.exec.rpc.CoordinationQueue.updateFailedFuture(CoordinationQueue.java:153)
[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:227) [drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:173) [drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:89)
[netty-codec-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
[netty-codec-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:161)
[netty-codec-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:787)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:130)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511) [netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382) [netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354) [netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
[netty-common-4.0.24.Final.jar:4.0.24.Final]
        at java.lang.Thread.run(Thread.java:745) [na:1.7.0_71]
{code}

I attached the dataset with 10 records. For the larger dataset just copy over the smaller
one multiple times




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