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From "Wail Alkowaileet (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ASTERIXDB-1203) QuantifiedExpressions in IfThenElse throws NPE
Date Sun, 29 Nov 2015 15:09:10 GMT
Wail Alkowaileet created ASTERIXDB-1203:
-------------------------------------------

             Summary: QuantifiedExpressions in IfThenElse throws NPE
                 Key: ASTERIXDB-1203
                 URL: https://issues.apache.org/jira/browse/ASTERIXDB-1203
             Project: Apache AsterixDB
          Issue Type: Bug
            Reporter: Wail Alkowaileet


I found another bug in the typeComputer: 

- Input:
{noformat}
{
	"id":0,
	"names":{
		"count": "1",
		"name" :{
			"firstName" : "wail",
			"lastName" : "Alkowaileet"
		}
	}
}
{
	"id":1,
	"names":{
		"count": "2",
		"name" :[
		{
			"firstName" : "wail",
			"lastName" : "Alkowaileet"
		},
		{
			"firstName" : "Sattam",
			"lastName" : "Alsubaiee"
		}
		]
	}
}
{noformat}

- DDL:
{noformat}
create dataverse ifVerse
use dataverse ifVerse
create type ifType as open
{
    id: int32
}
create dataset ifds
primary key id
{noformat}

DML:
{noformat}
use dataverse ifVerse
insert into dataset ifds(
{
	"id":0,
	"names":{
		"count": "1",
		"name" :{
			"firstName" : "wail",
			"lastName" : "Alkowaileet"
		}
	}
}
)

insert into dataset ifds(
{
	"id":1,
	"names":{
		"count": "2",
		"name" :[
		{
			"firstName" : "wail",
			"lastName" : "Alkowaileet"
		},
		{
			"firstName" : "Sattam",
			"lastName" : "Alsubaiee"
		}
		]
	}
}
)
{noformat}

FLWOR:
{noformat}
use dataverse ifVerse
for $x in dataset ifds
where ( 
if ($x.names.count = "1") then
   $x.names.name.firstName = "wail"
else
   (some $v in $x.names.name satisfies $v.firstName = "wail")
)
return $x
{noformat}

- Exception:
SEVERE: null
java.lang.NullPointerException
	at org.apache.asterix.om.typecomputer.impl.UnaryBooleanOrNullFunctionTypeComputer.computeType(UnaryBooleanOrNullFunctionTypeComputer.java:51)
	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.typing.AbstractTypeEnvironment.getType(AbstractTypeEnvironment.java:45)
	at org.apache.asterix.optimizer.rules.CheckFilterExpressionTypeRule.rewritePost(CheckFilterExpressionTypeRule.java:62)
	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:111)
	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:111)
	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.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$1.optimize(HeuristicCompilerFactoryBuilder.java:87)
	at org.apache.asterix.api.common.APIFramework.compileQuery(APIFramework.java:289)
	at org.apache.asterix.aql.translator.QueryTranslator.rewriteCompileQuery(QueryTranslator.java:1907)
	at org.apache.asterix.aql.translator.QueryTranslator.handleQuery(QueryTranslator.java:2482)
	at org.apache.asterix.aql.translator.QueryTranslator.compileAndExecute(QueryTranslator.java:394)
	at org.apache.asterix.api.http.servlet.APIServlet.doPost(APIServlet.java:148)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:546)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:483)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:228)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:956)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:411)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:188)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:891)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:114)
	at org.eclipse.jetty.server.Server.handle(Server.java:353)
	at org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:598)
	at org.eclipse.jetty.server.HttpConnection$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)




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