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From abdullah alamoudi <bamou...@gmail.com>
Subject Fwd: [jira] [Commented] (ASTERIXDB-2157) Parsing metadata of UDF with UnorderedList return type
Date Sat, 09 Dec 2017 00:42:39 GMT
Ian,
Let's not drop this?

Cheers,
Abdullah.


> Begin forwarded message:
> 
> From: abdullah alamoudi <bamousaa@gmail.com>
> Subject: Re: [jira] [Commented] (ASTERIXDB-2157) Parsing metadata of UDF with UnorderedList
return type
> Date: November 7, 2017 at 8:38:47 PM PST
> To: dev@asterixdb.apache.org
> Cc: notifications@asterixdb.incubator.apache.org
> 
> Hi Tomasz,
> Thanks for creating the issue and for the fix.
> 
> @Ian,
> I looked at the PR and it looked good to me. How can we get this in? through Gerrit?
> 
> Cheers,
> Abdullah.
> 
>> On Nov 7, 2017, at 1:21 PM, Tomasz Pawłowski (JIRA) <jira@apache.org> wrote:
>> 
>> 
>>   [ https://issues.apache.org/jira/browse/ASTERIXDB-2157?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16242901#comment-16242901
] 
>> 
>> Tomasz Pawłowski commented on ASTERIXDB-2157:
>> ---------------------------------------------
>> 
>> I have already created a pull request for this bug https://github.com/apache/asterixdb/pull/6
including a proper unit test.
>> 
>>> Parsing metadata of UDF with UnorderedList return type
>>> ------------------------------------------------------
>>> 
>>>               Key: ASTERIXDB-2157
>>>               URL: https://issues.apache.org/jira/browse/ASTERIXDB-2157
>>>           Project: Apache AsterixDB
>>>        Issue Type: Bug
>>>        Components: MTD - Metadata
>>>          Reporter: Tomasz Pawłowski
>>>          Priority: Minor
>>>            Labels: easyfix, newbie
>>> 
>>> While defining a library UDF with return_type representing a unordered list (eg.
{{ ASTRING }}). UDF is created with result type {{ {{ ASTRING }} }}. 
>>> This error can be replicated with libraryFunction:
>>> <libraryFunction>
>>>     <function_type>SCALAR</function_type>
>>>     <name>test</name>
>>>     <arguments>ASTRING</arguments>
>>>     <return_type>{{ ASTRING }}</return_type>
>>>     <definition>org.apache.asterix.external.library.TestFactory</definition>
>>>   </libraryFunction>
>>> TestFactory.java:
>>> package org.apache.asterix.external.library;
>>> import org.apache.asterix.external.api.IExternalScalarFunction;
>>> import org.apache.asterix.external.api.IFunctionFactory;
>>> public class TestFactory implements IFunctionFactory {
>>>   @Override
>>>   public IExternalScalarFunction getExternalFunction() {
>>>       return new TestFunction();
>>>   }
>>> }
>>> // END of TestFactory.java
>>> TestFunction.java:
>>> package org.apache.asterix.external.library;
>>> import org.apache.asterix.external.api.IExternalScalarFunction;
>>> import org.apache.asterix.external.api.IFunctionHelper;
>>> import org.apache.asterix.external.library.java.JObjects;
>>> import org.apache.asterix.om.types.BuiltinType;
>>> public class TestFunction implements IExternalScalarFunction {
>>>   private JObjects.JUnorderedList results;
>>>   @Override
>>>   public void deinitialize() {}
>>>   @Override
>>>   public void evaluate(IFunctionHelper functionHelper) throws Exception {
>>>       JObjects.JString input = (JObjects.JString) functionHelper.getArgument(0);
>>>       results.reset();
>>>       JObjects.JUnorderedList test = new JObjects.JUnorderedList(BuiltinType.ASTRING);
>>>       test.add(input);
>>>       test.add(input);
>>>       test.add(input);
>>>       results.add(test);
>>>       functionHelper.setResult(results);
>>>   }
>>>   @Override
>>>   public void initialize(IFunctionHelper functionHelper) throws Exception{
>>>       results = (JObjects.JUnorderedList) functionHelper.getResultObject();
>>>   }
>>> }
>>> // END of TestFunction.java
>>> And executing (AQL):
>>> use dataverse test;
>>> testlib#test("test")
>>> Which results in:
>>> {{ {{ "test", "test", "test" }} }}
>>> At the same time writing TestFunction evaluate to return {{ ASTRING }} results
in error:
>>> org.apache.hyracks.algebricks.common.exceptions.AlgebricksException: java.io.EOFException
>>> 	at org.apache.asterix.optimizer.rules.ConstantFoldingRule$ConstantFoldingVisitor.visitScalarFunctionCallExpression(ConstantFoldingRule.java:231)
>>> 	at org.apache.asterix.optimizer.rules.ConstantFoldingRule$ConstantFoldingVisitor.visitScalarFunctionCallExpression(ConstantFoldingRule.java:153)
>>> 	at org.apache.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression.accept(ScalarFunctionCallExpression.java:55)
>>> 	at org.apache.asterix.optimizer.rules.ConstantFoldingRule$ConstantFoldingVisitor.transform(ConstantFoldingRule.java:163)
>>> 	at org.apache.hyracks.algebricks.core.algebra.operators.logical.AbstractAssignOperator.acceptExpressionTransform(AbstractAssignOperator.java:67)
>>> 	at org.apache.asterix.optimizer.rules.ConstantFoldingRule.rewritePost(ConstantFoldingRule.java:150)
>>> 	at org.apache.hyracks.algebricks.core.rewriter.base.AbstractRuleController.rewriteOperatorRef(AbstractRuleController.java:126)
>>> 	at org.apache.hyracks.algebricks.core.rewriter.base.AbstractRuleController.rewriteOperatorRef(AbstractRuleController.java:100)
>>> 	at org.apache.hyracks.algebricks.core.rewriter.base.AbstractRuleController.rewriteOperatorRef(AbstractRuleController.java:100)
>>> 	at org.apache.hyracks.algebricks.compiler.rewriter.rulecontrollers.SequentialFixpointRuleController.rewriteWithRuleCollection(SequentialFixpointRuleController.java:53)
>>> 	at org.apache.hyracks.algebricks.core.rewriter.base.HeuristicOptimizer.runOptimizationSets(HeuristicOptimizer.java:102)
>>> 	at org.apache.hyracks.algebricks.core.rewriter.base.HeuristicOptimizer.optimize(HeuristicOptimizer.java:82)
>>> 	at org.apache.hyracks.algebricks.compiler.api.HeuristicCompilerFactoryBuilder$1$1.optimize(HeuristicCompilerFactoryBuilder.java:90)
>>> 	at org.apache.asterix.api.common.APIFramework.compileQuery(APIFramework.java:267)
>>> 	at org.apache.asterix.app.translator.QueryTranslator.rewriteCompileQuery(QueryTranslator.java:1834)
>>> 	at org.apache.asterix.app.translator.QueryTranslator.lambda$handleQuery$1(QueryTranslator.java:2307)
>>> 	at org.apache.asterix.app.translator.QueryTranslator.createAndRunJob(QueryTranslator.java:2407)
>>> 	at org.apache.asterix.app.translator.QueryTranslator.deliverResult(QueryTranslator.java:2340)
>>> 	at org.apache.asterix.app.translator.QueryTranslator.handleQuery(QueryTranslator.java:2319)
>>> 	at org.apache.asterix.app.translator.QueryTranslator.compileAndExecute(QueryTranslator.java:370)
>>> 	at org.apache.asterix.app.translator.QueryTranslator.compileAndExecute(QueryTranslator.java:253)
>>> 	at org.apache.asterix.api.http.server.ApiServlet.post(ApiServlet.java:153)
>>> 	at org.apache.hyracks.http.server.AbstractServlet.handle(AbstractServlet.java:78)
>>> 	at org.apache.hyracks.http.server.HttpRequestHandler.handle(HttpRequestHandler.java:70)
>>> 	at org.apache.hyracks.http.server.HttpRequestHandler.call(HttpRequestHandler.java:55)
>>> 	at org.apache.hyracks.http.server.HttpRequestHandler.call(HttpRequestHandler.java:36)
>>> 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
>>> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>>> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>>> 	at java.lang.Thread.run(Thread.java:745)
>>> Caused by: org.apache.hyracks.api.exceptions.HyracksDataException: java.io.EOFException
>>> 	at org.apache.hyracks.api.exceptions.HyracksDataException.create(HyracksDataException.java:45)
>>> 	at org.apache.asterix.dataflow.data.nontagged.serde.AUnorderedListSerializerDeserializer.deserialize(AUnorderedListSerializerDeserializer.java:102)
>>> 	at org.apache.asterix.dataflow.data.nontagged.serde.AUnorderedListSerializerDeserializer.deserialize(AUnorderedListSerializerDeserializer.java:43)
>>> 	at org.apache.asterix.dataflow.data.nontagged.serde.AUnorderedListSerializerDeserializer.deserialize(AUnorderedListSerializerDeserializer.java:96)
>>> 	at org.apache.asterix.dataflow.data.nontagged.serde.AUnorderedListSerializerDeserializer.deserialize(AUnorderedListSerializerDeserializer.java:43)
>>> 	at org.apache.asterix.formats.nontagged.SerializerDeserializerProvider$1.deserialize(SerializerDeserializerProvider.java:191)
>>> 	at org.apache.asterix.formats.nontagged.SerializerDeserializerProvider$1.deserialize(SerializerDeserializerProvider.java:173)
>>> 	at org.apache.asterix.optimizer.rules.ConstantFoldingRule$ConstantFoldingVisitor.visitScalarFunctionCallExpression(ConstantFoldingRule.java:228)
>>> 	... 29 more
>>> Caused by: java.io.EOFException
>>> 	at java.io.DataInputStream.readInt(DataInputStream.java:392)
>>> 	at org.apache.asterix.dataflow.data.nontagged.serde.AUnorderedListSerializerDeserializer.deserialize(AUnorderedListSerializerDeserializer.java:92)
>>> 	... 35 more
>> 
>> 
>> 
>> --
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>> (v6.4.14#64029)
> 


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