java.lang.ClassCastException: com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlUnionQuery cannot be cast to com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlSelectQueryBlock

GitHub | yu412346928 | 2 months ago
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    union not support?

    GitHub | 2 months ago | yu412346928
    java.lang.ClassCastException: com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlUnionQuery cannot be cast to com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlSelectQueryBlock
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    iteye.com | 1 year ago
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    adam2vcf

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    java.lang.ClassCastException: cannot be cast to javax.servlet.Filter

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    Root Cause Analysis

    1. java.lang.ClassCastException

      com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlUnionQuery cannot be cast to com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlSelectQueryBlock

      at org.nlpcn.es4sql.query.ESActionFactory.isJoin()
    2. org.nlpcn.es4sql
      SearchDao.explain
      1. org.nlpcn.es4sql.query.ESActionFactory.isJoin(ESActionFactory.java:115)
      2. org.nlpcn.es4sql.query.ESActionFactory.create(ESActionFactory.java:45)
      3. org.nlpcn.es4sql.SearchDao.explain(SearchDao.java:46)
      3 frames
    3. org.elasticsearch.plugin
      RestSqlAction.handleRequest
      1. org.elasticsearch.plugin.nlpcn.RestSqlAction.handleRequest(RestSqlAction.java:35)
      1 frame
    4. ElasticSearch
      HttpRequestHandler.messageReceived
      1. org.elasticsearch.rest.BaseRestHandler.handleRequest(BaseRestHandler.java:54)
      2. org.elasticsearch.rest.RestController.executeHandler(RestController.java:205)
      3. org.elasticsearch.rest.RestController.dispatchRequest(RestController.java:166)
      4. org.elasticsearch.http.HttpServer.internalDispatchRequest(HttpServer.java:128)
      5. org.elasticsearch.http.HttpServer$Dispatcher.dispatchRequest(HttpServer.java:86)
      6. org.elasticsearch.http.netty.NettyHttpServerTransport.dispatchRequest(NettyHttpServerTransport.java:449)
      7. org.elasticsearch.http.netty.HttpRequestHandler.messageReceived(HttpRequestHandler.java:61)
      7 frames
    5. Netty
      DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream
      1. org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
      2. org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
      3. org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
      3 frames
    6. ElasticSearch
      HttpPipeliningHandler.messageReceived
      1. org.elasticsearch.http.netty.pipelining.HttpPipeliningHandler.messageReceived(HttpPipeliningHandler.java:60)
      1 frame
    7. Netty
      DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream
      1. org.jboss.netty.channel.SimpleChannelHandler.handleUpstream(SimpleChannelHandler.java:88)
      2. org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
      3. org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
      4. org.jboss.netty.handler.codec.http.HttpChunkAggregator.messageReceived(HttpChunkAggregator.java:145)
      5. org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
      6. org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
      7. org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
      8. org.jboss.netty.handler.codec.http.HttpContentDecoder.messageReceived(HttpContentDecoder.java:108)
      9. org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
      10. org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
      11. org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
      12. org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296)
      13. org.jboss.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:459)
      14. org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:536)
      15. org.jboss.netty.handler.codec.replay.ReplayingDecoder.messageReceived(ReplayingDecoder.java:435)
      16. org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
      17. org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
      18. org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
      18 frames
    8. ElasticSearch
      OpenChannelsHandler.handleUpstream
      1. org.elasticsearch.common.netty.OpenChannelsHandler.handleUpstream(OpenChannelsHandler.java:75)
      1 frame
    9. Netty
      DeadLockProofWorker$1.run
      1. org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
      2. org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)
      3. org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268)
      4. org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255)
      5. org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88)
      6. org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108)
      7. org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:337)
      8. org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
      9. org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
      10. org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
      11. org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
      11 frames
    10. Java RT
      Thread.run
      1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
      2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
      3. java.lang.Thread.run(Thread.java:745)
      3 frames