[jira] [Commented] (ASTERIXDB-1047) Record-level UNION fails.

["Taewoo Kim (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ASTERIXDB-1047?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15146335#comment-15146335 ] 

Taewoo Kim commented on ASTERIXDB-1047:
---------------------------------------

Currently, we don't support record level union operation. If we execute the above query, the following exception occurs in the current master.

java.lang.NullPointerException
	at org.apache.asterix.om.util.NonTaggedFormatUtil.isOptional(NonTaggedFormatUtil.java:105)
	at org.apache.asterix.om.typecomputer.impl.UnorderedListConstructorResultType.computeType(UnorderedListConstructorResultType.java:56)
	at org.apache.asterix.om.typecomputer.impl.UnorderedListConstructorResultType.computeType(UnorderedListConstructorResultType.java:1)
	at org.apache.asterix.dataflow.data.common.AqlExpressionTypeComputer.getTypeForFunction(AqlExpressionTypeComputer.java:86)
	at org.apache.asterix.dataflow.data.common.AqlExpressionTypeComputer.getType(AqlExpressionTypeComputer.java:57)
	at org.apache.hyracks.algebricks.core.algebra.operators.logical.AssignOperator.computeOutputTypeEnvironment(AssignOperator.java:95)
	at org.apache.hyracks.algebricks.core.rewriter.base.AlgebricksOptimizationContext.computeAndSetTypeEnvironmentForOperator(AlgebricksOptimizationContext.java:289)
	at org.apache.hyracks.algebricks.rewriter.rules.InferTypesRule.rewritePost(InferTypesRule.java:42)
	at org.apache.hyracks.algebricks.core.rewriter.base.AbstractRuleController.rewriteOperatorRef(AbstractRuleController.java:125)
	at org.apache.hyracks.algebricks.core.rewriter.base.AbstractRuleController.rewriteOperatorRef(AbstractRuleController.java:99)
	at org.apache.hyracks.algebricks.core.rewriter.base.AbstractRuleController.rewriteOperatorRef(AbstractRuleController.java:99)
	at org.apache.hyracks.algebricks.compiler.rewriter.rulecontrollers.SequentialOnceRuleController.rewriteWithRuleCollection(SequentialOnceRuleController.java:44)
	at org.apache.hyracks.algebricks.core.rewriter.base.HeuristicOptimizer.runOptimizationSets(HeuristicOptimizer.java:95)
	at org.apache.hyracks.algebricks.core.rewriter.base.HeuristicOptimizer.optimize(HeuristicOptimizer.java:82)
	at org.apache.hyracks.algebricks.compiler.api.HeuristicCompilerFactoryBuilder$1$1.optimize(HeuristicCompilerFactoryBuilder.java:87)
	at org.apache.asterix.api.common.APIFramework.compileQuery(APIFramework.java:289)
	at org.apache.asterix.aql.translator.QueryTranslator.rewriteCompileQuery(QueryTranslator.java:1924)
	at org.apache.asterix.aql.translator.QueryTranslator.handleQuery(QueryTranslator.java:2501)
	at org.apache.asterix.aql.translator.QueryTranslator.compileAndExecute(QueryTranslator.java:390)
	at org.apache.asterix.aql.translator.QueryTranslator.compileAndExecute(QueryTranslator.java:253)
	at org.apache.asterix.api.http.servlet.APIServlet.doPost(APIServlet.java:148)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:546)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:483)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:228)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:956)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:411)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:188)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:891)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:114)
	at org.eclipse.jetty.server.Server.handle(Server.java:353)
	at org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:598)
	at org.eclipse.jetty.server.HttpConnection$RequestHandler.content(HttpConnection.java:1076)
	at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:805)
	at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:218)
	at org.eclipse.jetty.server.HttpConnection.handle(HttpConnection.java:427)
	at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:510)
	at org.eclipse.jetty.io.nio.SelectChannelEndPoint.access$000(SelectChannelEndPoint.java:34)
	at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:40)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:450)
	at java.lang.Thread.run(Thread.java:745) 

> Record-level UNION fails.
> -------------------------
>
>                 Key: ASTERIXDB-1047
>                 URL: https://issues.apache.org/jira/browse/ASTERIXDB-1047
>             Project: Apache AsterixDB
>          Issue Type: Bug
>          Components: AsterixDB
>            Reporter: asterixdb-importer
>            Assignee: Taewoo Kim
>
> Record-level UNION fails.



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