[jira] [Created] (IGNITE-855) Explain does not work

[Anton Vinogradov (Jira)]

Alexey Kuznetsov created IGNITE-855:
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             Summary: Explain does not work
                 Key: IGNITE-855
                 URL: https://issues.apache.org/jira/browse/IGNITE-855
             Project: Ignite
          Issue Type: Bug
          Components: SQL
    Affects Versions: sprint-4
            Reporter: Alexey Kuznetsov
            Assignee: Sergi Vladykin
            Priority: Blocker
             Fix For: sprint-4


execute Explain SELECT * FROM Person
and got following stack trace:
{code}
javax.cache.CacheException: java.lang.ClassCastException: org.h2.command.dml.Explain cannot be cast to org.h2.command.dml.Query
        at org.apache.ignite.internal.processors.cache.IgniteCacheProxy.query(IgniteCacheProxy.java:522)
        at org.apache.ignite.internal.visor.query.VisorQueryJob.run(VisorQueryJob.java:106)
        at org.apache.ignite.internal.visor.query.VisorQueryJob.run(VisorQueryJob.java:39)
        at org.apache.ignite.internal.visor.VisorJob.execute(VisorJob.java:67)
        at org.apache.ignite.internal.processors.job.GridJobWorker$2.call(GridJobWorker.java:482)
        at org.apache.ignite.internal.util.IgniteUtils.wrapThreadLoader(IgniteUtils.java:6119)
        at org.apache.ignite.internal.processors.job.GridJobWorker.execute0(GridJobWorker.java:476)
        at org.apache.ignite.internal.processors.job.GridJobWorker.body(GridJobWorker.java:429)
        at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:108)
        at org.apache.ignite.internal.processors.job.GridJobProcessor.processJobExecuteRequest(GridJobProcessor.java:1052)
        at org.apache.ignite.internal.processors.job.GridJobProcessor$JobExecutionListener.onMessage(GridJobProcessor.java:1728)
        at org.apache.ignite.internal.managers.communication.GridIoManager.processRegularMessage0(GridIoManager.java:690)
        at org.apache.ignite.internal.managers.communication.GridIoManager.access$1500(GridIoManager.java:58)
        at org.apache.ignite.internal.managers.communication.GridIoManager$5.run(GridIoManager.java:653)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassCastException: org.h2.command.dml.Explain cannot be cast to org.h2.command.dml.Query
        at org.apache.ignite.internal.processors.query.h2.sql.GridSqlQueryParser.parse(GridSqlQueryParser.java:185)
        at org.apache.ignite.internal.processors.query.h2.sql.GridSqlQuerySplitter.split(GridSqlQuerySplitter.java:81)
        at org.apache.ignite.internal.processors.query.h2.IgniteH2Indexing.queryTwoStep(IgniteH2Indexing.java:850)
        at org.apache.ignite.internal.processors.query.GridQueryProcessor.queryTwoStep(GridQueryProcessor.java:561)
        at org.apache.ignite.internal.processors.cache.IgniteCacheProxy.query(IgniteCacheProxy.java:513)
        ... 16 more
{code}



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